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JPH11160420

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DESCRIPTION JPH11160420
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
underwater sensor expansion structure, and more particularly to an underwater sensor
expansion structure in which an underwater sensor such as a line array receiver is expanded in
water.
[0002]
2. Description of the Related Art FIG. 5 is an explanatory view showing an expanded state of a
conventional underwater sensor. In the figure, reference numeral 1 denotes a float, which has
sufficient buoyancy to support each part to be described later, and incorporates electronic
equipment for processing sensor information from the signal cable 2 and wireless transmission
inside.
[0003]
3 is a buffer cable, which absorbs and mitigates shock and vibration. 4 shows a drag body.
Reference numeral 5 denotes an upper array receiving unit, in which a plurality of sensors are
provided at predetermined intervals. A storage case 6 stores the signal cable 2, the buffer cable
3, the resistance member 4 and the upper array receiving unit 5 before expansion. A lower array
receiving unit 7 is provided with a plurality of sensors at predetermined intervals. Reference
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1
numeral 8 denotes an underwater electronic unit, which is provided between the upper array
receiving unit 5 and the lower array receiving unit 7 and combines the acoustic signals collected
by the upper array receiving unit 5 and the lower array receiving unit 7 . A weight 9 is provided
to keep the upper array receiving unit 5 and the lower array receiving unit 7 vertical.
[0004]
The reference numeral 10 denotes a cylindrical body for accommodating the respective
components so as to be able to be fed out in order, and after being spread, they drop as shown in
the figure. FIG. 6 is an explanatory view showing a storage state of a conventional underwater
sensor, showing a state in which the signal cable 2, the buffer cable 3, the reaction body 4 and
the upper array wave receiving portion 5 are stored in the storage case 6. (A) of the figure is a
side sectional view of the storage case 6, and (b) is a bottom view.
[0005]
The signal cable 2 is stored at an upper portion in the storage case 6 in a state of being wound so
as to be easily drawn out, and can be delivered to the upper side of the storage case 6. The buffer
cable 3 and the drag body 4 are stored under the signal cable 2. Below the drag body 4, the
upper array wave receiving unit 5 is stored via the partition plate 11. The upper array receiving
unit 5 includes an upper array sensor 5a and an upper array cable 5b. The upper array sensor 5a
is disposed on the inner side, and the upper array cable 5b is accommodated outside the upper
array sensor 5a. The buffer cable 3, the drag body 4, the partition plate 11 and the upper array
receiving unit 5 are discharged downward of the storage case 6.
[0006]
The storage case 6, the underwater electronic unit 8, the lower array receiving unit 7 and the
weight 9 are stored in the cylindrical body 10. FIG. 7 is an explanatory view of a conventional
expansion sequence, and the manner in which the components housed as described above are
expanded will be described according to this drawing. (1) The float floats on the surface of the
sea, and the other components settle down in the sea in a state of being housed in the cylindrical
body 10. At this time, the signal cable 2 is drawn out from the storage case 6 in the cylindrical
body 10.
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[0007]
(2) When the delivery of the signal cable 2 is completed, the storage case 6 is suspended at that
position, and the tubular body 10 further settles. At this time, the upper array receiving unit 5 is
extended from the storage case 6. (3) When the upper array receiving section 5 is extended to
some extent from the storage case 6, the remaining portion of the upper array receiving section
5, the buffer cable 3 and the reaction body 4 are released together with the partition plate 11 by
their own weight. Ru.
[0008]
(4) Since the released drag body 4 is resistant, it settles little by little. The submersible electronic
part 8, the lower array receiving part 7 and the weight 9 are connected to the drag body 4, but
the tubular body 10 is faster than the drag body 4 because the tubular body 10 is not connected
thereto. It settles down. Therefore, the underwater electronic unit 8, the lower array receiving
unit 7 and the weight 9 are extended from the cylindrical body 10 in a state of being suspended
by the drag body 4.
[0009]
(5) After the weight 9 comes out of the cylindrical body 10, the buffer cable 3 is extended by the
weight of the underwater electronic part 8 and the weight of the weight 9 in the sea, and the
expansion is completed.
[0010]
However, according to the above-mentioned prior art, as shown in (3) of FIG. 7, while the part of
the upper array receiving section is being released from the storage case, the rest remains. The
upper array receiver, the buffer cable and the drag are released by their own weight, but in that
case, there is a possibility that the upper array receiver floating in the sea, the buffer cable and
the drag may be entangled.
[0011]
Also, after the start of spreading, the resistance body is released at an early stage, and the
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resistance of the resistance body causes the buffer cable at the upper side not to extend, so that
the underwater electronic portion below the upper array receiving portion, lower array receiving
The wave portion and the weight are expanded, and the whole is pulled out of the cylindrical
body, and the buffer cable is completely extended due to the hanging weight.
For this reason, the buffer cable is repeatedly expanded and contracted for a while, and it takes
time until the entire length is stabilized and the acoustic signal can be normally received.
[0012]
SUMMARY OF THE INVENTION According to the present invention, there is provided a signal
cable for transmitting a signal to a float floating on a water surface, a storage case, a buffer cable
having elasticity, a drag body, an upper array wave receiving portion having a sensor,
underwater Electronic part, lower array receiving part with sensor and weight are connected in
order, signal cable, buffer cable, drag body and upper array receiving part are stored in storage
case, storage case, underwater electronic part, lower array reception In an underwater sensor
expansion structure in which the wave portion and the weight are stored in a cylindrical body
and the cylindrical body is expanded while being extended, an upper array case having a
cylindrical portion for winding the upper array receiving portion, and the contents of the storage
case And the stopper has a claw portion interposed between the cylindrical portion of the upper
array case and the upper array receiving portion wound around the cylindrical portion, and the
upper array When reception portion that pawl portion is freely drawn out all fixed state of the
stopper is released the contents of the storage case in it is characterized in that it is released.
[0013]
In addition, a drag case is provided to house the drag body, the bottom of the drag case is open,
and the open portion is closed by a closing plate, the closing plate is connected to the upper
array case, The body case is provided with a closing claw that locks the closing plate so that it is
released when the weight is loaded without being released by the load of the underwater
electronic part, and the drag case and the lower part of the buffer cable are connected by a cord
It is characterized by having done.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be
described below with reference to the drawings.
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FIG. 1 is an explanatory view of a spreading sequence of the embodiment.
Expand in the order of (1) to (6) in this figure.
(6) shows the state in which the expansion is completed. In the figure, reference numeral 1
denotes a float, which has sufficient buoyancy to support each part described later, and
incorporates electronic equipment for processing of sensor information from the signal cable 2
and wireless transmission.
[0015]
3 is a buffer cable, which absorbs and mitigates shock and vibration. Reference numeral 4
denotes a drag body, which is housed in advance in the drag body case 12 and works in a state of
being pulled out from the drag body case 12 at the time of expansion. Reference numeral 5
denotes an upper array receiving unit, which comprises a plurality of sensors provided at
predetermined intervals. The upper array receiving unit 5 is housed in advance in the upper
array case 13 and works in a state of being drawn out from the upper array case 13 at the time
of expansion.
[0016]
A storage case 6 stores the signal cable 2, the buffer cable 3, the drag body 4, the drag case 12,
the upper array receiving portion 5 and the upper array case 13 before expansion. The lower
array receiving unit 7 is provided with a plurality of sensors at predetermined intervals.
Reference numeral 8 denotes an underwater electronic unit, which is provided between the
upper array receiving unit 5 and the lower array receiving unit 7 and combines the acoustic
signals collected by the upper array receiving unit 5 and the lower array receiving unit 7 . A
weight 9 is provided to keep the upper array receiving unit 5 and the lower array receiving unit
7 vertical.
[0017]
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The reference numeral 10 denotes a cylindrical body, which is for storing the respective
constituent elements so as to be able to be drawn out in order, and after being spread, it drops as
shown in the figure. FIG. 2 is an explanatory view showing a storage state of the underwater
sensor according to the embodiment, and in the storage case 6, the signal cable 2, the buffer
cable 3, the drag body 4, the drag case 12, the upper array wave receiving portion 5 and It is a
side sectional view showing a state in which the upper array case 13 is stored.
[0018]
The signal cable 2 is stored at an upper portion in the storage case 6 in a state of being wound so
as to be easily drawn out, and can be delivered to the upper side of the storage case 6. Under the
signal cable 2, the buffer cable 3, the drag body 4 and the drag case 12 are stored. The lower
portion of the drag case 12 houses the upper array case 13 in which the upper array wave
receiving portion 5 is wound. A stopper 14 is fixed so as not to drop the buffer cable 3, the drag
case 12 and the upper array case 13.
[0019]
FIG. 3 is an explanatory view showing the upper array case of the embodiment, in which (a)
shows a state in which the upper array wave receiving section 5 is accommodated, and (b) shows
a state after feeding. Fitting portions 15 are formed at both ends of the stopper 14. The storage
case 6 is provided with a pair of opposing fitting holes 16 and is fitted to the corresponding
fitting portions 15 to fix the stoppers.
[0020]
The upper array case 13 is disposed immediately below the stopper 14. The upper array case 13
has a cylindrical portion 17, and the cylindrical portion 17 has a structure in which a notch is
provided in the axial direction. The upper array receiving unit 5 is composed of an upper array
sensor 5a and an upper array cable 5b, and the upper array sensor 5a is accommodated in the
cylindrical portion 17 from the notch portion of the cylindrical portion 17 while being upper By
winding the array cable 5b around the outside of the cylindrical portion 17, the upper array
wave receiving portion 5 can be put together so as to be able to be fed out.
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[0021]
The stopper 14 has a pair of claws 18 and extends below the stopper 14 and is disposed outside
the cylindrical portion 17 of the upper array case 13. In this state, by winding the upper array
receiver 5, the claws 18 are fixed to the upper array cable 5b. FIG. 3A shows this storage state. A
groove 19 is provided at the base of the claw 18 of the stopper 14. The upper end of the upper
array cable 5 b is connected to the upper array case 13, and the upper array case is connected to
the stopper 14. When the upper array receiving section 5 is fully extended, the upper array cable
5b is disengaged from the hook 18, and the upper array cable 5b pulls the upper array case 13
downward. Then, since the claw portion 18 is free, the stopper 14 is bent so that the claw portion
18 expands outward and the fitting portion 15 is displaced inward with the groove portion 19 as
an axis, and the fitting portion 15 is bent. Is disengaged from the fitting hole 16. (B) of FIG. 3
shows the state after this feeding.
[0022]
FIG. 4 is an explanatory view of a drag case of the embodiment. In the figure, (a) shows a state
where the drag case 12 is connected to the upper array case 13 to incorporate the drag body 4,
and (b) shows the drag case 12 separated from the upper array case 13 to form the drag body 4.
Shows a state where the At the bottom of the drag case 12, for example, a pair of closing claws
20 are provided, and the closing plate 21 is locked to the closing claws 20. A groove 22 is
provided on the top of the closing claw 20. The closing plate 21 is connected to the upper array
case 13.
[0023]
When the upper array cable 5b pulls the upper array case 13 downward, since the upper array
case, the stopper 14 and the closing plate 21 are connected, the closing plate 21 is pulled
downward. The closing claw 20 holds up to the load when pulling out the submersible electronic
part 8 at the time of expansion, but when the weight 9 is applied, it is bent outward at the groove
22 to keep the closing plate 21 open.
[0024]
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A cord 23 has one end fixed at a position above the lower end of the buffer cable 3 by a
predetermined distance, and the other end fixed to the drag case 12. When the drag body 4 is in
the drag case 12, all loads below the drag case 12 are applied to the upper end of the cord 23,
and no load is applied to the buffer cable 3 below from the position. When the drag body 4 is
opened, a load is also applied to the lower portion of the buffer cable 3.
[0025]
The underwater electronic unit 8, the lower array receiving unit 7 and the weight 9 are disposed
below the storage case 6 containing the respective components as described above, and all of
them are accommodated in the cylindrical body 10. Hereinafter, the spreading sequence of the
present embodiment will be described according to FIG. (1) The float floats on the sea surface,
and the other components are stored in the cylindrical body 10, the signal cable 2 is drawn out
from the storage case 6 in the cylindrical body 10, and is settled in the sea go.
[0026]
(2) When the delivery of the signal cable 2 is completed, the storage case 6 is suspended at that
position, and the tubular body 10 further settles. At this time, the upper array receiving unit 5 is
extended from the storage case 6. (3) When the upper array receiving unit 5 is completely
extended from the storage case 6, the claws 18 of the stopper 14 become free, and the upper
array receiving when the underwater electronic unit 8 is extracted from the cylindrical body 10
The tension of the portion 5 causes the stopper 14 to be bent at the groove portion 19, and the
fitting portion 15 is disengaged from the fitting hole 16, and the upper array case 13 is released
from the storage case integrally with the drag case 13.
[0027]
(4) The buffer cable 3 is extended by the load of the underwater electronic unit 8, and when the
buffer cable 3 is extended, the underwater electronic unit 8 is pulled out from the cylindrical
body 10. At this time, no tension is applied to the entire buffer cable 3, and only a portion above
the fixed position of the string 23 is applied. The cord 23 directly holds the drag case 12 so that
no tension is applied to the portion of the buffer cable 3 below the fixed position of the cord 23.
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[0028]
Following the underwater electronic unit 8, the lower array receiving unit 7 is also extended from
the cylindrical body 10 and extended. (5) When the lower array receiving section 7 is completely
expanded and the load of the weight 9 is applied to the lower array receiving section 7, the drag
case 12 is deformed at the groove 22 and the closing claw 20 spreads outward. The closure plate
21 is released, and the drag body 4 is released from the drag case 12. At this stage, a load is
applied to the entire buffer cable 3.
[0029]
(6) Since the cylindrical body 10 continues to sink in a state where the weight 9 is suspended,
the weight 9 will be pulled out from the cylindrical body 10, and the expansion is completed.
[0030]
As described above in detail, the upper array case is provided, the upper array receiving portion
is expanded, and then the stopper is set to expand the buffer cable, the drag body, etc. It has the
effect of being able to be expanded without entanglement of the wave receiver, buffer cable, drag
body and the like.
[0031]
Further, by providing the drag case and delaying the spreading of the drag, it is possible to
shorten the time from the start of the spreading to the completion of the preparation for
operation.
[0032]
Brief description of the drawings
[0033]
Explanatory drawing of the expansion sequence of FIG. 1 embodiment
[0034]
Explanatory drawing which shows the accommodation state of the underwater sensor of FIG. 2
embodiment
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[0035]
Explanatory view showing the upper array case of FIG. 3 embodiment
[0036]
Explanatory view of the drag case of the embodiment of FIG. 4
[0037]
5 is an explanatory view showing the expanded state of the conventional underwater sensor
[0038]
6 is an explanatory view showing a storage state of the conventional underwater sensor
[0039]
Fig. 7 A diagram of the conventional expansion sequence
[0040]
Explanation of sign
[0041]
Reference Signs List 1 float 2 signal cable 3 buffer cable 4 drag body 5 upper array receiving
unit 6 storage case 7 lower array receiving unit 8 underwater electronic unit 9 weight 10
cylindrical body 12 drag body case 13 upper array case 14 stopper 17 cylindrical portion 18
Claws 19 Grooves 20 Closure claws 21 Closure plate 23 String
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