JP2013112206A - Diving rope drop display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a diving rope drop display device capable of quickly and rationally performing search activity of using a diving rope, capable of reducing a burden of an acting diver, and capable of improving a safety management measure.SOLUTION: This device displays, on the water, a drop position of the diving rope into a target water area, and includes a floating body 2 of floating on the water, a weight 3 to be landed at the bottom by dropping in the water, and a sounding rope having one end connected to the weight 3 and having the another end wound on the floating body 2. The floating body 2 is constituted so that rotational resistance by the water becomes large against the direction of rotation caused by rolling-out of the sounding rope on the water.

Description

  The present invention relates to a submergence drop display device provided with a floating body that displays a drop position of a submarine line to a submergence target water area on the water.

  For example, in searching for the leftovers used for rescue and search of victims caused by water accidents, crimes, etc., a subsidence that sets a subsidence target in the search water area is used. This subsidence is used for the purpose of enabling search activities by divers to be carried out quickly and smoothly, and enabling safety management measures for active divers.

  By the way, this type of conventional subsidence rope is used by connecting one end of a sounding rope to a buoy (for example, a spherical floating body) that floats on the water and the other end to a weight that grounds the other. The following work procedure was required for dropping the position.

(1) Using long coral, etc., aim at the depth of the submerged-line drop water area. If a long cable is not enough, use a sounding rope.
(2) Connect one end of the sounding rope to the weight and tie the other end of the sounding rope to a buoy to make a submerged cable.
(3) Adjust (braid) the length of the sounding rope according to the water depth.
(4) Drop the weight into the water.
(5) Adjust the tension of the depth measurement rope between the bottomed weight and the buoy on the water surface. That is, adjustment is performed to ensure an extra length of the depth measurement rope corresponding to the amount of water surface displacement at low tide, high tide, and the like.

Thus, in the conventional subsidence, the time required for the work from (1) to (5) varies depending on the environment, but it is usually about 10 to 20 minutes, and the number of people involved is usually 2 to 4 Met. Further, when the underwater field of view is poor due to the water quality, there is a problem that not only the work time is further increased but also the work becomes difficult.
In addition, the current buoy (floating body) is easily affected by tidal currents and winds, and has a problem that the position is shifted from the dropping point and the error range of the target position for descent becomes larger.

Patent Document 1 describes a mooring device including a mooring line having a floating body connected to one end and mooring means connected to the other end and having a conical intermediate weight in the middle.
According to this mooring device, the force transmitted from the moved floating body to the mooring means on the sea floor can be reduced by the intermediate weight, and the movement of the floating body is suppressed by the force that the intermediate weight tries to lower the mooring measure. Or the action of drawing the moved floating body to the original position can be exhibited.

JP 2009-173100 A

Therefore, it is conceivable that the intermediate weight of such a mooring device is applied to a submerged cable to make it less susceptible to tidal currents and winds. However, this causes the following problems.
First, as the intermediate weight is provided, the overall weight becomes heavier and the workability becomes worse.
Secondly, it is still necessary to measure the depth of the water using a long rod or a depth measuring rope, adjust the length of the depth measuring rope according to the depth of the water, and adjust the extension of the depth measuring rope to accommodate the water surface displacement.

  The present invention has been made in view of the above-described conventional problems, and can quickly and rationally perform a search activity using a submergence, thereby reducing the burden on a diver who is active and measures for safety management. It is an object of the present invention to provide a submerged-line dropping display device capable of improving the above.

  The present invention for solving the above-mentioned problems is a submergence drop display device that displays a drop position of a submarine line in a target water area on the water, a floating body floating on the water, and a weight that drops and settles in the water. A depth-measuring rope having one end connected to the weight and the other end wound on the floating body, and the floating body has a rotational resistance caused by water with respect to a direction rotating by unwinding the depth-measuring rope on the water. It is the structure which becomes large.

  According to the present invention, the floating body has a structure in which the rotational resistance due to water increases with respect to the direction of rotation due to unwinding of the depth measurement rope on the water, so that the floating body is difficult to rotate on the water. Therefore, the rotation resistance of the floating body on the water is set larger than the force that the floating body is unwound due to the influence of wind and tidal currents, so that the depth measurement rope does not easily unwind. be able to. As a result, it is possible to prevent the position of the floating body from being displaced from the dropped water area and the error range of the submergence target position from increasing.

Further, by setting the rotational resistance of the floating body in this way, the rotation of the floating body stops when the weight reaches the bottom during dropping of the submarine cable. Thereby, it will be in the state tension | tensile_strength | moderate moderately, without producing extra slack in a sounding rope. Therefore, it is possible to effectively prevent the floating body from being displaced from this point.
And in order to exhibit such a function, it can be done by an extremely simple operation of dropping the weight of the submarine cable into the target water area of the submergence.

As a preferred embodiment of the present invention, the floating body has an annular floating body main body and a wind-up portion of the depth measurement rope, and the rotation axis of the floating body is different from the rotation axis of the winding portion. It is characterized by.
In such a configuration, since the rotation axis of the floating body is different from the rotation axis of the winding unit, that is, the mutual rotation axes are separated from each other, rotational resistance is generated in the floating body floating on the water. This rotational resistance occurs even if the landing surface of the floating body is formed in an annular shape, for example. In addition, as the relative separation distance between the rotation axis of the floating body and the rotation axis of the winding unit increases, the rotation resistance increases. Therefore, by adjusting the interval between the rotation axes, the magnitude of the rotation resistance can be reduced. Can be adjusted.

In a preferred embodiment of the present invention, a lifebuoy ring is used for the floating body.
Lifebuoys are available on the market, have excellent waterproofness and weather resistance, and are equipped with reflective sheets, so they can produce a high-quality, high-function floating submarine drop display device at a low cost. There are advantages you can do.

As a preferred embodiment of the present invention, a scale for measuring water depth is displayed on the depth measuring rope.
As described above, when the scale for measuring the water depth is attached to the depth measuring rope, it is possible to measure the water depth by visual measurement immediately after the weight reaches the bottom when dropping the submarine cable.

In the present invention, the floating body has a flat floating body and a wind-up portion of the depth measurement rope, and the rotation axis of the floating body and the rotation axis of the winding portion coincide with each other. To do.
Thus, even if the floating body is formed flat, rotation resistance by water can be imparted to the floating body on the water. Therefore, in this case, the rotating shaft of the floating body and the rotating shaft of the winding unit may be matched or separated.

According to the present invention, since the rotational resistance of the floating body on the water is increased, the floating body is difficult to rotate on the water. Therefore, the floating body can be prevented from moving from the dropping position by appropriately setting the rotational resistance of the floating body on the water. Furthermore, it is possible to prevent excessive loosening of the sounding rope simply by dropping.
As a result, the search activity using the submergence can be performed more quickly and rationally than before, thereby reducing the burden on the active diver and improving the safety management measures.

It is a front view of the submarine line dropping display device concerning Embodiment 1 of the present invention. It is a front view which shows the principal part of the submerged-line dropping display apparatus which concerns on Embodiment 1 of this invention. It is a front view which shows the structure of the floating body of the submerged-line dropping display apparatus which concerns on Embodiment 1 of this invention. It is a side view which shows the structure of the floating body of the submarine rope drop display apparatus which concerns on Embodiment 1 of this invention. It is a side view which shows the structure of the floating body of the submerged-line dropping display apparatus which concerns on Embodiment 2 of this invention. It is a schematic side view explaining the effect | action of the submerged-line dropping display apparatus which concerns on embodiment of this invention. It is a side view explaining the effect | action of the submerged-line drop display apparatus which concerns on embodiment of this invention. It is a side view of the submerged-line dropping display apparatus which concerns on Embodiment 3 of this invention. It is a side view of the submarine line dropping display apparatus which concerns on Embodiment 4 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 9.
(Embodiment 1)
1 and 2, reference numeral 1 indicates a submarine drop display device that displays a drop position of a submarine line in a target water area on the water. This submarine drop display device 1 includes a floating body 2 that floats on the water W, a weight 3 that drops into the water and reaches the bottom, a depth measuring rope that has one end connected to the weight 3 and the other end wound around the floating body 2. 4 is provided. And the floating body 2 is set as the structure by which the rotational resistance by water becomes large with respect to the direction rotated by unwinding of the depth measurement rope 4 on the surface W.

  Next, these details will be described. The floating body 2 includes annular floating bodies 5 and 5 and a winding portion 7 of the depth measurement rope 4. As shown in FIG. 4, the floating body 5, 5 is formed in an annular shape as viewed from the side, and is arranged at a distance from each other. In this embodiment, two commercially available lifebuoy rings are used as the floating bodies 5 and 5. This lifebuoy is excellent in water resistance and weather resistance, and is equipped with a reflection sheet 8 and the like, so that a high-quality and high-function floating body can be formed.

  The winding portion 7 is a reel type (winding drum type) formed of a so-called synthetic resin. As shown in FIG. 3, as shown in FIG. 3, a cylindrical portion 71 for winding the depth measuring rope 4 and both sides of the cylindrical portion 71. And formed circular flanges 72, 72.

The winding portion 7 is integrally connected to the floating body 5, 5. The form of connection is considered so that the rotating shaft 5a of the floating bodies 5 and 5 and the rotating shaft 7a of the winding unit 7 are different. Thereby, the rotating shaft 5a of the floating bodies 5 and 5 and the rotating shaft 7a of the winding unit 7 are separated from each other by a predetermined distance. The rotating shaft 7 a also serves as a connecting rod, and is provided so as to be relatively rotatable between the floating body 5, 5 and the winding part 7. The rotation shaft 7a is provided with a retaining member 7b located outside the floating body 5 or 5.

  As shown in FIG. 2, the submarine drop display device 1 of the present embodiment is configured to enhance visibility by an international signal flag 10 attached to the visual pole 9. A float 11 and a balance weight 12 are provided below the visual pole 9 so that the visual pole 9 can stand vertically on the water surface. A connecting rope 13 is provided between the visual pole 9 and the floating body 2.

  The depth measurement rope 4 wound around the winding portion 7 of the floating body 2 displays scales 4a, 4b, 4c, 4d, 4f,. In this way, by attaching a scale for measuring the water depth to the depth measuring rope 4, it becomes possible to measure the water depth by visual measurement immediately when the weight 3 reaches the bottom B in dropping the submarine cable.

  The display method of the scale for measuring the water depth is not particularly limited, but in this embodiment, as shown in FIG. 1, scales displayed in different colors every 1 m are attached. The colored scales start from a height position 1 m above the carabiner 41 that is a coupling tool for the weight 3 of the depth measurement rope 4 and each has a length (height) of 50 cm.

  Specifically, for each depth measuring rope 1m, 50 cm long color coding is applied in the order of red, yellow, blue, green and black. After one round (5m point), until the next round (10m point), a red thick line (horizontal line) 43 is marked, and the number increases every round. Therefore, in the case of the scale 4k colored and displayed in black with one red thick mark 43, it indicates 10m. In addition, in the case of a scale colored in black with two red thick line marks 43, it indicates 15 m.

  According to the present embodiment, the floating body 2 has a structure in which the rotational resistance due to water increases with respect to the direction of rotation of the depth measuring rope 4 on the water, so that the floating body 2 is difficult to rotate on the water. . Accordingly, the rotational resistance of the floating body 2 on the water is set to be larger than the force with which the floating body 2 is unwound by the influence of wind, tidal current, etc., so that the depth measuring rope 4 does not easily unwind. I have to. Thereby, it can prevent that the position of the floating body 2 shifts | deviates from a dropping water area, and the error range of a submerged target position will become large.

Further, by setting the rotational resistance of the floating body 2 in this way, when the weight 3 is dropped, the rotation of the floating body 2 stops when the weight 3 reaches the bottom as shown in FIG. Thereby, it will be in the state tension | tensile_strength | moderate moderately, without producing extra slack in the depth measurement rope 4. Therefore, it is possible to effectively prevent the position of the floating body 2 from shifting from this point.
And in order to exhibit such a function, it can be done by an extremely simple operation of dropping the weight 3 into the target water area.

  Here, as shown in FIG. 6, when the rotation axis (center) of the floating body 2 and the rotation axis of the winding unit 7 coincide with each other, the rotational resistance due to water with respect to the floating body 2 is small. In response, the floating body 2 continues to rotate integrally with the winding unit 7. Therefore, not only can the depth measuring rope 4 extend and an accurate water depth cannot be measured, but also the floating body 2 greatly deviates from the dropping position of the weight 3.

FIG. 7 shows the principle of the rotational resistance caused by water in the floating body 2.
As shown in the figure, since the rotary shaft 5a of the floating body 5 and 5 and the rotary shaft 7a of the winding unit 7 are different, that is, the rotary shafts 5a and 7a are separated from each other, so that they float on the water. A rotational resistance (force against rotation) F is generated in the floating bodies 5 and 5. Since the force for rotating the floating body 2 is larger than the rotational resistance force of the floating body 2, it rotates until the weight 3 reaches the bottom. When the weight 3 reaches the bottom, the rotational force disappears and only the tension that balances the buoyancy is present, so that the floating body 2 is held at that position.

This rotational resistance F occurs even if the landing surfaces of the floating bodies 5 and 5 are formed in an annular shape as shown in the example. Further, as the relative separation distance between the rotating shaft 5a of the floating body 5 and 5 and the rotating shaft 7a of the winding unit 7 increases, the rotational resistance F also increases. Therefore, the interval between the rotating shafts 5a and 7a is adjusted. By doing so, the magnitude of the rotational resistance F can be adjusted.

(Embodiment 2)
In the first embodiment, an example in which a lifebuoy ring is used for the floating body 2 has been described. However, as illustrated in FIG. 5, the floating body 2 and the winding unit 7 may be integrally formed with a synthetic resin or the like. If comprised in this way, it will also become possible to manufacture at lower cost.

Further, the floating body 2 may have a flat floating body and a winding portion of the depth measuring rope, and the rotation axis of the floating body and the rotation axis of the winding portion may be the same.
Thus, even if the floating body is formed flat, rotation resistance by water can be imparted to the floating body on the water. Therefore, in this case, the rotating shaft of the floating body and the rotating shaft of the winding unit may be matched or separated.
Moreover, as the floating body 2, what is necessary is just the structure which the rotation resistance by water produces, and another structure can also be employ | adopted.

(Embodiment 3)
FIG. 8 shows Embodiment 3 of the present invention. In the third embodiment, the floating body 5 is formed in a rectangular shape when viewed from the side, and the rotating shaft 5a of the floating body 5 and the rotating shaft 7a of the reel 7 are separated from each other.
Even if comprised in this way, the effect similar to the said Embodiment 1, 2 can be exhibited.

(Embodiment 4)
FIG. 9 shows Embodiment 4 of the present invention. In the fourth embodiment, the floating body 5 is formed in a semicircular shape when viewed from the side, and the rotating shaft 5a of the floating body 5 and the rotating shaft 7a of the reel 7 are separated from each other.
In this embodiment as well, substantially the same operational effects as those of the first, second, and third embodiments can be exhibited.

DESCRIPTION OF SYMBOLS 1 Submarine drop display apparatus 2 Floating body 3 Weight 4 Measuring rope 4a, 4b, 4c, 4d, 4e, 4k Scale 5 Floating body 5a 7a Rotating shaft 7 Winding part 8 Reflecting sheet 9 Visual pole 10 International signal flag 11 Float 12 Balance weight 13 Connecting rope

Claims (5)

A device that displays on the water the drop position of the submarine cable to the target water area,
A floating body that floats on the water, a weight that drops into the water and reaches the bottom, a depth measuring rope that has one end connected to the weight and the other end wound around the floating body,
The submerged-line dropping display device characterized in that the floating body has a structure in which a rotational resistance due to water increases with respect to a direction in which the floating body rotates by unwinding a depth-measuring rope. The floating body has an annular floating body main body and a winding portion of a depth measurement rope,
The submerged rope dropping display device according to claim 1, wherein a rotation axis of the floating body is different from a rotation axis of the winding unit.   The submarine drop display device according to claim 1, wherein a lifebuoy is used for the floating body.   The submersible drop display device according to any one of claims 1 to 3, wherein a scale for measuring water depth is displayed on the depth measuring rope. The floating body has a flat floating body main body and a winding portion of a depth measurement rope,
The submerged rope dropping display device according to claim 1, wherein a rotation axis of the floating body and a rotation axis of the winding unit coincide with each other.

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