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JPH062890

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JPH062890
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
underwater transducer which receives tow water and transmits / receives ultrasonic waves, and
in particular, a long type underwater transmit / receive capable of being wound with a high
tension on a small diameter drum. Related to
[0002]
2. Description of the Related Art FIG. 2 is a cross sectional view showing a conventional
underwater transducer. In the figure, 1 is a cylindrical flexible cylinder, and this flexible cylinder
1 is made of a material such as a urethane hose having a good sound transmission performance.
A plurality of tension members 2 passed through the flexible cylinder 1 along the extending
direction of the flexible cylinder 1, and a plurality of cables 3 passed through the flexible cylinder
1 similarly to the tension member 2 is there. 4 is a terminal plug or relay plug for closing the end
of the flexible cylinder 1, 5 is a fixing bracket for fixing the terminal plug or relay plug 4 to the
flexible cylinder 1, 6 is a plurality of spacers for partitioning the flexible cylinder 1 is there.
Reference numeral 7 denotes oil filled in the flexible cylinder 1 in which the tension member 2,
the cable 3 and the spacer 6 are accommodated and the end is closed with a terminal plug or
relay plug 4. Further, a transmitting / receiving element (not shown) is connected to the cable 3
and accommodated in the flexible tube 1.
[0003]
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1
At the end plug or relay plug 4, a plurality of tension members 2 are collectively held at their
ends by the stopper 8 at the center of the end plug or relay plug 4 and fixed, and the cable 3 is a
tension member 2 is held around. The cable 3 is held at the center of the spacer 6 at the spacer
6, and the tension member 2 is held and fixed around the cable 3 by the stopper 9.
[0004]
When an external force is applied to bend the flexible cylinder 1 by winding the underwater
transmitter-receiver according to the above configuration on a drum, the plural tension members
2 collectively form the end portions thereof and the end surface central portion of the terminal
plug or relay plug 4 The plurality of tension members 2 are uniformly stretched so that they can
be wound around the drum with high tension.
[0005]
FIG. 3 is a cross-sectional view of the underwater transducer showing the problems of the prior
art. In the above-mentioned conventional underwater transducer, when it is wound with a small
diameter on a drum with high tension, Since the outer part of the flexible cylinder is extended
and the inner part of the flexible cylinder in contact with the drum is wound while being
compressed, the end where the tension member is centered at the center as shown in FIG. 3
There is a problem that breakage occurs in the flexible tube near the plug or the relay plug.
[0006]
It is generally known that in the case of a transducer to be used by being towed in water, the
irregularities on the surface of the flexible cylinder are important for maintaining its acoustic
performance.
Therefore, as described above, if a break occurs in the flexible cylinder, there is a problem that
the break remains at the time of use to lower the acoustic performance.
Further, since the cable is passed through the flexible cylinder, there is a problem that when the
inside of the flexible cylinder is broken, the cable is pinched between the tension member and
the flexible cylinder to be damaged or broken.
04-05-2019
2
[0007]
The present invention was made in order to solve the problem that the underwater transducer is
wound on a small diameter drum with high tension, so that the inner portion of the flexible
cylinder near the terminal plug or relay plug is broken. It is an object of the present invention to
provide an underwater transducer in which breakage does not occur in a flexible cylinder even
when wound with a small diameter drum with high tension.
[0008]
SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present
invention comprises a cylindrical flexible cylinder, a plug for closing the end of the flexible
cylinder, and a plurality of partitions for dividing the inside of the flexible cylinder. An
underwater transmitter-receiver comprising: a spacer; a plurality of tension members passed
through the flexible cylinder along the extension direction of the flexible cylinder; and oil filled in
the flexible cylinder A reinforcing member obtained by cylindrically winding a material is
attached between the inner circumferential surface of the flexible cylinder and the tension
member between the plug and the adjacent spacer closest to the plug.
[0009]
In the underwater transducer according to the present invention having the above-mentioned
configuration, an external force for bending the flexible cylinder is applied when it is wound
around a small diameter drum with high tension, but the plate-like rubber material is made
cylindrical. Since the wound reinforcing member is attached to the inner side of the flexible
cylinder, even if it is wound while receiving a pressure to compress the inner portion of the
flexible cylinder in contact with the drum, the reinforcing member is broken by the reinforcing
member. Does not occur.
[0010]
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a cross-sectional view showing an underwater transducer according to an embodiment
of the present invention, and FIG. 1 (a) is a cross-sectional view of the end of the underwater
transducer cut along its extending direction; b) is an AA cross section of FIG. 1 (a).
04-05-2019
3
[0011]
In the present embodiment, parts having the same configuration as in the prior art are assigned
the same reference numerals and descriptions thereof will be omitted.
In the figure, reference numeral 10 denotes a reinforcing member, and the reinforcing member
10 is formed by winding a plate-like rubber material into a cylindrical form so as to form
multiple layers, and the tension member 2 corresponding to the end side of the flexible cylinder
1 It is attached between the inner peripheral surface of the flexible cylinder 1 and the tension
member 2 and the cable 3 between the terminal plug or relay plug 4 and this plug and the
nearest adjacent spacer 6.
[0012]
By winding the underwater transducer on the drum (not shown) with high tension, an external
force to bend the flexible cylinder 1 is applied, and the force to compress the inner portion of the
flexible cylinder 1 in contact with the drum is received. In the embodiment, since the reinforcing
member 10 is attached in the flexible cylinder 1, the strength of the rubber material constituting
the reinforcing member 10 prevents the flexible cylinder 1 from being broken.
[0013]
Generally, in order to improve the buckling strength of a flexible cylinder such as a high-pressure
rubber hose, one in which a metal spring is embedded in the flexible cylinder itself or one in
which a reinforcing cloth is embedded is seen. The increased thickness and embedded metal
spring and reinforcing cloth make it difficult to wind on a small-diameter drum with less freedom
of bending in the lengthwise direction, but also causes deterioration of acoustic performance. ,
And reinforcement of the flexible tube of the underwater transducer
[0014]
The reinforcing member 10 of the present embodiment is a tubular rubber material wound in a
multi-layered cylindrical shape, which is near the end of the flexible tube 1, that is, the terminal
plug or relay plug 4 and these plugs closest to them. Since it is mounted in the flexible cylinder 1
between the adjacent spacers 6, the degree of freedom in bending in the longitudinal direction is
not impaired, and the acoustic performance is not degraded.
04-05-2019
4
In addition, in order to prevent the buckling in the diameter direction of the flexible cylinder, it is
generally considered better to increase the thickness of the flexible cylinder itself, but since the
inner diameter of the flexible cylinder can not be reduced, it is possible to increase the thickness.
Not only is the outside diameter of the flexible tube large and it is rather easy to bend if wound
on a small diameter drum, it also hinders the reduction in size and weight.
[0015]
For this reason, as in the present embodiment, the flexible cylinder 1 needs to be thick by
attaching the reinforcing member 10 formed by cylindrically winding a plate-like rubber material
into a multilayer so as to form multiple layers. The buckling in the diameter direction of the
flexible cylinder 1 can be prevented without increasing the thickness.
[0016]
As described above, according to the present invention, there is provided a cylindrical flexible
cylinder, a plug for closing the end of the flexible cylinder, a plurality of spacers for partitioning
the inside of the flexible cylinder, and a flexible cylinder. An underwater transmitter-receiver
comprising a plurality of tension members passed through the flexible cylinder along the
direction of extension and oil filled in the flexible cylinder, wherein a plate-like rubber material is
cylindrically wound. The reinforcing member is mounted between the inner peripheral surface of
the flexible cylinder and the tension member between the plug and the adjacent spacer closest to
the plug.
[0017]
Therefore, even if a force to compress the inside of the flexible cylinder is taken up with high
tension on a small diameter drum, the reinforcing member resists this, so that the flexible
cylinder is not broken, and the flexible cylinder is flexible. It has the effect of being able to
suppress the deterioration of the acoustic performance due to the occurrence of breakage in the
cylinder and the breakage and disconnection of the cable.
In addition, since the reinforcing member is attached only to the end portion side of the flexible
cylinder, it has an effect that the acoustic performance is not reduced.
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