JPH01233195A - Submarine sound insulation plate - Google Patents

Abstract

PURPOSE:To enhance attaching work efficiency so as to facilitate parts exchange without peeling off at the time of sailing by sticking band shaped rubber-like elastic bodies with maximum cavity portions preventing deformation on a hull outer plate by pressure sensitive adhesive and installing clamps to the linkage bead portions by fixing members at the same time. CONSTITUTION:Pressure sensitive adhesive 9 is applied to the rear face side 2b of rubber-like elastic body 2 formed in compliance with the length of the sticked position of a hull outer plate 7 so as to stick it on a defined position with respect to a metal- made block 10 mounted on the outer plate 7. Next, clamps 12 are fixed to the bead portions 5 of the outer circumferential peeled portion of the elastic body 2 and the block 10, and a clamp 13 is attached to an end portion so as to respectively fixed by fastening bolts 11. In this way, the elastic bodies 2 and clamps 12, 13 are fixed to the outer plate 7 so that the peeled portions of the elastic bodies 2 are connected to each other in order. Also, after the elastic bodies 2 are attached to the outer plate 7, space between the rear face side 2b and the outer plate 7 is filled with the pressure sensitive adhesive 9, and thereby there is no an air layer. In addition, the pressure sensitive adhesive 9 is sealed between an outer board 7 and sealing surfaces 8 and thereby the pressure sensitive adhesive does not leak so that the elastic bodies 2 are firmly fixed with respect to the outer plate 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an underwater sound insulating board, and more particularly relates to the structure of mounting an underwater sound insulating board to a hull outer panel.

[Prior art]

Conventionally, in order to reduce the noise radiated into the water from the hull, damping materials such as damping materials were used on the outer skin of the hull, sound insulating materials or reflective plates with cavities inside vibration isolating materials or rubber elastic bodies. is used.

By the way, when attaching a block-shaped sound insulating material having a hollow inside of a rubber elastic body as described above to a hull outer plate, conventionally, an adhesive is used.

However, the above-mentioned work is outdoor work where salt damage and dirt are likely to adhere, and the temperature is low.

The work is hard work because it is carried out under adverse conditions such as high humidity and bad working postures, and there are problems with the reliability of the adhesive strength.Also, when sailing, negative pressure is created on the surface side of the hollow sound insulating material. There was a problem in that the sound insulating material peeled off due to the bulging of the void.

[Purpose of the invention]

This invention was devised by focusing on such conventional problems, and its purpose is to improve the workability of installing sound insulation materials, and to prevent the sound insulation materials from peeling off during navigation. Further, the present invention provides an underwater sound insulating material that can improve reliability of quality and also allows easy replacement of parts.

[Structure of the invention]

In order to achieve the above-mentioned object, the present invention molds a cavity as large as possible without causing internal deformation, and at the same time attaches a hull outer plate to the outer peripheral edge of a rubber-like elastic body formed into a belt shape of a predetermined length. and a bead portion that engages with blocks protruding from the hull shell plate at predetermined intervals, and the rubber-like elastic body is attached to the hull shell plate via an adhesive, and The gist is that the block and bead portion are attached via a fixing member.

[Embodiments of the invention]

The present invention will be described in detail below based on the accompanying drawings.

FIG. 1 is a side view of an underwater sound insulating plate 1 formed into a band shape according to the present invention, and FIG. 2 is an enlarged sectional view taken along the line nn in FIG. The length β (length to be attached to the hull outer plate 2, e.g. 10 m) and the specified width W (e.g. 1
m), and inside the rubber-like elastic body 2 (material such as sponge) that constitutes the underwater sound insulating plate 1, a maximum cavity 3 that does not cause deformation is formed as shown in Fig. 2. has been done.

A reinforcing cloth 1 is provided inside the surface side 2a of the rubber-like elastic body 2.
5 is embedded, and on the outer peripheral edge of the rubber-like elastic body 2,
An engagement recess 4 is formed and a bead 5 is embedded therein.

Further, on the back side 2b of the outer peripheral edge of the rubber-like elastic body 2, a third
A convex sealing surface 8 is formed that comes into contact with the hull outer plate 7 of the hull 6 shown in the figure, and an adhesive 9 (e.g. This prevents grease and glue-like substances from leaking out.

Next, a metal block 10 as shown in FIG. 2 is fixed to the hull outer plate 7 of the hull 6 by welding or the like, so as to correspond to the length of the underwater sound insulation board 1. ,
Threaded portion 10a that screws into bolt 11 constituting the fixing member
is formed.

The fixing member that fixes the outer peripheral edge of the rubber-like elastic body 2 to the block 10 fixed to the hull outer plate 7 is the bolt 1 described above.
1 and a metal clamp 12.1 that engages with the engagement recess 4
3, and when fixing the block 10 and the outer peripheral edge of the rubber-like elastic body 2, as shown in FIG. and clamp 12.1 between the bead portion 5 and the block 10.
3 is fitted and tightened and fixed with bolts 11.

The clamp 12 is a clamp at the middle part of the connection, and the clamp 13 is a clamp at the end of the underwater sound insulation board 1.
The end face is formed to be inclined.

Further, in FIG. 3, 6 indicates the hull in the water W, 7 indicates the hull outer plate, and 14 indicates a noise source installed inside the hull.

Next, the operation of attaching the underwater sound insulating plate 1 to the hull outer plate 7 of the hull 6 will be explained in detail.

First, the adhesive 9 is applied to the back side 2b of the rubber-like elastic body 2, which is formed to a predetermined length corresponding to the length of the position where the hull outer panel 7 is pasted, and then applied to the hull outer panel 7. It is pasted at a predetermined position on the attached metal block 10. In this state, the clamp 12 is fitted onto the bead portion 5 formed on the outer peripheral edge of the rubber-like elastic body 2 and the block 10, and then tightened and fixed with the bolt 11.

Further, a clamp 13 is attached to the end portion and fixed by tightening with a bolt 11.

This operation is performed by applying the rubber-like elastic body 2 to the hull outer plate 7.
It is attached to a predetermined surface while sequentially connecting the outer peripheral edges of the tape.

Further, after the rubber-like elastic body 2 is attached to the hull outer plate 7, the adhesive 9 is filled between the back side 2b of the rubber-like elastic body 2 and the hull outer plate 7, so that There is no air layer, etc., and since the adhesive 9 is sealed with the hull outer panel 7 by the convex sealing surface 8, there is no leakage of the adhesive 9, and the outer hull panel 7
The rubber-like elastic body 2 can be firmly attached to the base.

〔Effect of the invention〕

In this invention, as described above, the maximum cavity is formed without causing internal deformation, and the outer peripheral edge of the rubber-like elastic body is formed into a belt shape of a predetermined length, so as to be in contact with the hull outer plate. providing a sealing surface that contacts and a bead portion that engages with blocks protruding from the hull shell at predetermined intervals, and attaching the rubber-like elastic body to the hull shell via an adhesive;
Since the block and bead part are attached through a fixing member, unlike the conventional method of simply attaching them with adhesive, they can be mechanically connected and firmly attached. There is no problem of peeling, which improves quality reliability, and since the material is pre-formed to a predetermined length and is fixed to the block of the hull shell, working conditions can be improved, and installation is easier. It is easy to work, reduces the number of man-hours required for installation, improves work efficiency, and allows parts to be easily replaced.In addition, it has a close contact surface with no air layer, so it can be used as a sound insulation board during navigation. It has the effect of solving problems such as flapping.

[Brief explanation of the drawing]

Fig. 1 is a side view of a sound insulating plate embodying the present invention, Fig. 2 is an enlarged sectional view taken along the nn arrow in Fig. 1, and Fig. 3 is an explanatory diagram showing the state in which the sound insulating plate is attached to the hull outer plate. It is. 1... Underwater sound insulation board, 2... Rubber-like elastic body, 3...
Cavity part, 5... Bead part, 7... Hull outer plate, 8...
・Seal surface, 9...Adhesive, 10...Block, 1
1... Bolt, 12, 1.3... Clamp. Agent Patent Attorney Nobuo Ogawa −

Claims (1)

[Claims] The outer peripheral edge of the rubber-like elastic body, which is formed into a belt shape of a predetermined length, has a sealing surface that comes into contact with the hull outer plate, and a sealing surface that comes into contact with the hull outer plate. bead portions protruding at predetermined intervals to engage with the blocks, the rubber-like elastic body is attached to the hull outer plate via an adhesive, and the blocks and the bead portions are connected via a fixing member. An underwater sound insulating board characterized in that it is designed to be installed.