JPH0114944Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a protection device for a sonar transducer.
More specifically, the present invention relates to a protection device for a sonar transducer that has an improved structure of a protective cover body that surrounds the sonar transducer and is attached to the bottom of the ship.

In the first place, the protection device for sonar transducers is
As shown in the figure, for the purpose of protecting the sonar transducer F attached to the bottom Sa of the ship S, it is attached to the bottom Sa to cover it, and its structure is It consists of a protective cover mounting body 10 that surrounds the sonar transducer F and is attached to the bottom Sa of the ship, and a protective cover body 20 that is detachably attached to the protective cover mounting body 10.

However, the protective cover body 20 of the conventional protection device for a sonar transducer is constructed by simply arranging a band-shaped material 21 made of a rubber-like elastic body in which a reinforcing cord K is embedded so that the outer shape in the longitudinal direction has a streamlined shape. The strip-shaped material 21 is simply arranged and bonded in the longitudinal direction so that the cross-sectional shape has a substantially semicircular cross-sectional shape, and is bonded to form the longitudinal reinforcing layer A. It is constructed by forming layer B.

Therefore, especially in the portions where the cross-sectional area gradually decreases toward the ends, such as the front and rear ends of the protective cover main body 20, as shown in FIG. 2 in an enlarged perspective view, , the strip-shaped material 21 adjacent to the left and right
Comrades overlap with each other.

As a result, as shown in the figure, a step is formed at the joint of the strip material 21, which not only tends to cause air bubbles to remain inside the protective cover body 20 after the protective cover body 20 is formed, but also
0, and the acoustic characteristics that are important as a protection device for a sonar transducer are impaired. When a water pressure higher than the water pressure was applied, problems such as twisting and deformation occurred due to the uneven thickness of the protective cover main body 20.

The present invention was developed as a result of studies to solve the above-mentioned problems.

Therefore, the purpose of the present invention is to make the thickness of the protective cover body uniform by devising the structure of the longitudinal reinforcing layer and the width direction reinforcing layer that constitute the protective cover body.
An object of the present invention is to provide an excellent protection device for a sonar transducer that can improve acoustic characteristics and prevent deformation.

In other words, the present invention includes a protective cover mounting body that surrounds the sonar transducer installed on the bottom of the ship and is attached to the bottom of the ship, and a protective cover mounting body that is removably attached to the protective cover mounting body and has a streamlined external shape in the longitudinal direction. and a protective cover main body whose cross-sectional shape is approximately semicircular. The reinforcing cords of the rubber-like elastic body constituting the reinforcing layer are crossed and overlapped to form an integrated structure, and the longitudinal reinforcing layer has a triangular band-shaped material made of the rubber-like elastic body adjacent to each other on the left and right. The band-shaped material made of the rubber-like elastic body is connected between the front end and the rear end of each semicircular protective covering body, which are created by butting and joining the band-shaped materials so that they do not overlap each other. It has a configuration in which adjacent strip materials on the left and right are connected by an intermediate part created by butting and joining them so that they do not overlap each other,
For a sonar transducer, characterized in that the width direction reinforcing layer has a structure created by butt-joining a band-shaped material made of the rubber elastic body with horizontally adjacent band-shaped materials so as not to overlap with each other. The gist of this is a protective device.

Hereinafter, the present invention will be explained in detail by way of examples with reference to the drawings.

3 to 5 show a sonar transducer protection device according to an embodiment of the present invention, and FIG. 3 is a perspective illustration of the protective cover body, which is one of the components of the sonar transducer protection device. FIG. 4 is an enlarged front view explanatory view of the same as the above, and FIG. 5 is a partially enlarged perspective explanatory view of the same.

In the figure, E denotes a protection device for a sonar transducer according to an embodiment of the present invention, which includes a protective cover mounting body 10 attached to the bottom of the ship surrounding the sonar transducer F provided on the bottom Sa, and The protection cover main body 20 is detachably attached to the cover mounting body 10 and has a streamlined outer shape in the longitudinal direction and a substantially semicircular cross-sectional shape.

In the present invention, the protective cover body 20 includes:
A longitudinal reinforcing layer A and a width reinforcing layer B made of a rubber-like elastic body in which a reinforcing cord K is embedded are combined into a reinforcing cord K made of a rubber elastic body that constitutes both of these reinforcing layers A and B.
It has an integrated structure by overlapping and intersecting each other. This longitudinal reinforcing layer A consists of a semicircular front end, a rear end, and an intermediate part connecting these to each other, and these semicircular front and rear ends are connected to a triangular shape. It is created by combining the band-shaped materials 21 and joining the band-shaped materials adjacent to each other on the left and right by butting each other so that they do not overlap each other. In addition, the intermediate part and the widthwise reinforcing layer B
is created by butting and joining the strip-shaped materials 21 having a square or rectangular shape so that the strip-shaped materials adjacent to each other on the left and right do not overlap each other.
Further, on this longitudinal direction reinforcing layer A, reinforcing cords K constituting a rubber elastic body are laminated and integrated with the width direction reinforcing layer B so as to cross each other.

To explain this structure more specifically, the front and rear ends of the longitudinal reinforcing layer A, which is one of the components of the protective cover body 20 mentioned above, have a cross-sectional area as shown in FIG. As shown in FIG. 4, in the portion that gradually decreases as it reaches the front end or the rear end, the tip of each strip material 21 is shaved off in a triangular shape so that the strip materials adjacent on the left and right overlap each other. They are butt-jointed so that there is no
As shown in the figure, it is formed into a semicircular or fan-like shape.

As shown in FIG. 4, it is preferable that the apexes a of each triangularly shaved strip material 21 be arranged randomly so that they are not located in the same arc shape. By configuring as described above, the strength of the protective cover main body 20 can be made uniform, and in order to improve the external pressure resistance of the protection device for a sonar transducer, This is because it is possible to prevent the protective cover main body 20 from being deformed due to uneven strength when a water pressure higher than the external water pressure is applied.

Further, as described above, the protective cover main body 20 has an overall streamlined external shape by forming a longitudinal shape into a streamlined shape and a cross-sectional shape into a substantially semicircular shape. It is possible to significantly reduce the resistance during navigation of the ship, and furthermore, this protective cover main body 20 is provided around the opening.
A bead portion (not shown) for removably attaching the protective cover mounting body 10 to the protective cover mounting body 10 is integrally attached.

As described above, the present invention is designed to produce a band-like material made of a rubber-like elastic body with embedded reinforcing cords so that the external shape in the longitudinal direction exhibits a streamlined shape, and in addition, the band-like materials adjacent to the left and right do not overlap each other. butt-joining to form a longitudinal reinforcing layer, and intersecting the longitudinal reinforcing layer so that the strip material has a substantially semicircular cross-sectional shape;
Moreover, since the protective cover main body is constructed by butt-joining the left and right strip-shaped materials adjacent to each other so as not to overlap each other to form a widthwise reinforcing layer, the following effects can be achieved. That is, (1) Unlike the conventional method, there is no difference in level between the joints of adjacent strip materials. As a result, after the protective cover body is molded, no air bubbles remain inside the protective cover body, and the wall thickness can be made uniform, so that the acoustic characteristics, which are important as a protection device for a sonar transducer, can be significantly improved.

(2) Furthermore, in order to improve the external pressure resistance of the protection device for sonar transducers, when a water pressure higher than the external water pressure is applied inside the protective cover body, the protective cover body is prevented from deforming due to twisting, etc. do not have.

[Brief explanation of the drawing]

Figure 1 is a front view explanatory view showing the state in which the sonar transducer protection device is installed on a ship, and Figure 2 is a partial enlargement of the protective cover body, which is one of the components of the conventional sonar transducer protection device. It is a perspective explanatory view, and FIGS. 3 to 5 show a sonar transducer protection device according to an embodiment of the present invention, and FIG. 3 is one of the components of the sonar transducer protection device. FIG. 4 is an enlarged front view of the protective cover body, FIG. 5 is a partially enlarged perspective view of the same. 10...Protective cover mounting body, 20...Protective cover body, 21
...Band material, A...Longitudinal reinforcement layer, B...Width direction reinforcement layer, K...Fibrous reinforcement material, Sa...Ship bottom, F...Sonar transducer.

Claims (1)

[Scope of utility model registration request] A protective cover mounting body is attached to the bottom of the ship to surround the sonar transducer installed on the bottom of the ship, and the protective cover mounting body is removably attached to the protective cover mounting body, and has a streamlined external shape in the longitudinal direction and a cross section. It consists of a protective covering main body formed in a substantially semicircular shape, and this protective covering main body has a longitudinal reinforcing layer and a width reinforcing layer made of a rubber-like elastic body in which reinforcing cords are embedded. The reinforcing cords of the rubber-like elastic body are crossed and overlapped to form an integrated structure, and the longitudinal reinforcing layer is a triangular band-shaped material made of the rubber-like elastic body. The band-shaped material made of the rubber elastic body is placed adjacently on the left and right between the front end and the rear end of each semicircular protective covering body, which are created by butting and joining so as not to overlap each other. It has a configuration in which the strip-shaped materials are connected by an intermediate portion created by butting and joining them so that they do not overlap each other, and the width direction reinforcing layer is used to connect the strip-shaped materials made of the rubber elastic body to the left and right. 1. A protection device for a sonar transducer, characterized in that it has a structure created by butt-joining an existing band-shaped material so as not to overlap each other.