JP3734866B2 - Oil fence - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a charge-type oil fence that generates buoyancy by supplying gas, and in particular, quickly discharges the supplied gas.
[0002]
[Prior art]
In a conventional charging type oil fence, a bag-like body that is expanded into a cylindrical shape by gas supply and discharge and is contracted into a plate shape is attached to a bag-like body having a constant width over its entire length. An air supply port is provided at least at one end in the lengthwise direction of the body, and an exhaust valve is provided in the vicinity of the air supply port, and the exhaust valve is opened to discharge gas from the bag-like body. Is done.
[0003]
[Problems to be solved by the invention]
By the way, in such a prior art, in order to exhaust the bag-shaped body sufficiently quickly, it is necessary to considerably increase the size of the exhaust valve. On the other hand, when the oil fence is wound up or folded and stored, there is a disadvantage that the occupied space becomes large due to the large size of the exhaust valve, particularly the convex side, When the exhaust valve is downsized to such an extent that it does not interfere with storage or the like, the time required for exhausting becomes longer, and therefore the time required for winding up the used oil fence or the like is significantly increased.
[0004]
The present invention was made as a result of studying as a subject to solve such problems of the prior art, and the object of the present invention is to sufficiently reduce the winding volume, folding volume, etc. of the oil fence. It is an object of the present invention to provide an oil fence that can exhaust the bag-like body very quickly.
[0005]
[Means for Solving the Problems]
The oil fence of the present invention is attached to a bag-like body that is inflated into a cylindrical shape by supply of gas and contracted into a plate shape by discharge, and a belt-like body having a constant width is attached linearly over the entire length, and the bag-like form At least one end of the body is provided with a slide fastener that closes in an airtight manner in addition to the air supply port. By making the slide fastener function as an exhaust port, the size of the exhaust port is sufficient for rapid exhaust. The large size effectively prevents an increase in occupied space during storage.
[0006]
Here, preferably, the slide fastener is arranged in the length direction of the bag-like body, and each of the air supply port and the slide fastener is provided on the same surface side of the bag-like body in the contracted posture.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
FIG. 1 is a side view and a cross-sectional view showing an embodiment. In FIG. 1, reference numeral 1 denotes a bag-like body having a length of, for example, 10 to 20 m, made of rubber, rubberized canvas, etc. 1 is expanded into a cylindrical shape as shown in FIG. 1 (b) when a gas, for example, air is supplied thereto, and contracts into a plate shape when the air is discharged therefrom.
Moreover, 2 shows the strip | belt-shaped body which has a fixed width | variety, for example, the width | variety within the range of 0.4-0.9m attached to the lower end of the figure of the bag-like body 1 linearly over the full length.
[0008]
Here, as shown in FIG. 1 (b), the belt-like body 2 is attached to the bag-like body 1 by attaching it to the joint cloth 3 fixed to the bag-like body 1 by sticking, fusing, sewing or the like. The upper end of the belt-like body 1 is adhered, fused, sewn, etc., and the both ends of the bag-like body 1 are hermetically sealed together with the belt-like body 2 via the rigid plate 4. This is done by tightening with bolts 5. In such tightening by the bolt 5, as shown in the sectional view in the axial direction in FIG. 2, the hook is engaged with either one of the rigid contact plates 4 located on the front surface side and the back surface side of the bag-like body 1, respectively. When 6 is provided, the hooking hook 6 is hooked on a similar hooking hook provided on the adjacent oil fence, whereby the oil fence can be easily interconnected.
[0009]
In addition, here, in order to enable supply of gas to the inside of the bag-like body 1, air supply ports 7 are provided at both ends thereof. FIG. 3 is a cross-sectional view showing an example of attachment of such an air supply port 7, for example, with a check valve made of metal or synthetic resin having a diameter of about 50.8 mm (2 inches). This air supply port 7 can be integrated with the bag-like body 1 by sandwiching and adhering flanges 7 a formed so as to project around the air-feeding port 7 from both the inside and outside of the bag-like body 1.
In addition, the arrangement position and the number of the air supply ports 7 can be appropriately selected in relation to the length, the diameter, and the like of the bag-like body 1.
[0010]
Further, in the illustrated example, slide fasteners 8 that can be hermetically closed are provided at four locations in the length direction, and each of these slide fasteners 8 functions as an openable / closable exhaust port. Here, the position, number, size, etc. of the slide fastener 8 can also be selected according to the various dimensions of the bag-like body 1. It is positioned as close as possible to the end of the fence on the side opposite to the folding side or winding side, thereby ensuring more sufficient discharge of gas in the bag-like body during folding, winding, etc. The residual gas in the bag is reduced as much as possible, and the volume after folding, winding, etc. is made sufficiently small.
[0011]
By the way, as shown in FIG. 4A, the slide fastener itself has substantially the same form as that conventionally known, and is engaged with the slider 8a based on the sliding motion of the slider 8a. In addition, the slide-shaped fastener 8 is attached to the bag-like body 1 and the peripheral portion of the slide fastener 8 is attached to the bag-like body 1 as shown in FIG. It can be performed by sticking, fusing, sewing, etc. Therefore, the slide fastener 8 can reduce the occupied volume sufficiently regardless of the size of the slide fastener 8, in other words, the sliding distance of the slider 8 a, and this can be achieved even when the oil fence is folded. It is the same.
[0012]
Here, in the attachment part of the slide fastener 8 to the bag-like body 1, a cover flap 8b as shown in the figure is attached to the outer surface of the bag-like body 1, so that the slide fastener 8 is floated on water, etc. It is preferable to protect against collisions.
[0013]
In addition, such a slide fastener 8 is disposed so that its length direction is directed to the length direction of the bag-like body 1, and the slider 8 a slides in the length direction of the bag-like body 1. According to this, even when a tensile force in the length direction is applied to the stretched boom, the engaging teeth of the fastener 8 release the meshing by the tensile force. There is no fear of being done.
[0014]
The slide fastener 8 is preferably attached at a position on the same surface side as the air supply port 7 in a posture in which the bag-like body 1 is contracted and formed into a plate shape. According to the above, when the oil fence is wound up and stored, for example, it can be quickly and smoothly exhausted while the fastener 8 is opened by winding it in a state where the fastener mounting surface is on the outside. In spreading, the unwinding of the oil fence and the air supply from the air supply port 7 can be performed together.
[0015]
Here, a chain 9 having both ends connected to the rigid abutment plate 4 is inserted into the lower end portion of the oil fence 2 to restrain unnecessary fluctuation of the band-like body 2.
[0016]
When using the oil fence configured as described above, for example, each oil fence is wound around a winder and stored in a plurality of pre-connected oil fences while being pulled out to the water by a ship. The belt-like body 1 is inflated into a cylindrical shape by supplying a gas having a predetermined pressure, for example, 0.1 kgf / cm ² air, to the air supply port 7 when the slide fastener 8 is closed. Expand to the area.
[0017]
And after completion | finish of collection | recovery of the oil under such an extended state of an oil fence, after each oil fence is wash | cleaned, it is wound up with a winder. Here, the winding of the oil fence is performed in a posture in which the slide fastener 8 faces the outside of the winding as described above, and by opening each slide fastener 8 together with the start of the winding, The air in the bag is discharged quickly and smoothly through the fasteners 8 from the start side to the end side of the winding. When each oil fence reaches the end of the winding, the air in the bag is almost It is completely discharged.
[0018]
Therefore, in this oil fence, the slide fastener 8 functioning as a gas discharge port has a very small volume regardless of its size, and the residual air in the bag after winding is extremely small. Occupying space for winding and storage of the slide fastener 8 can be greatly reduced compared to the prior art, and by exhausting in a sufficiently large opening state of the slide fastener 8, the exhaust speed is significantly increased, The winding work efficiency can be greatly improved.
[0019]
【The invention's effect】
As is apparent from the above description, according to the present invention, the slide fastener that functions as a gas exhaust port and can be hermetically sealed has almost no concavo-convex portions, and a large amount of air in the bag can be obtained. Since the oil fence can be quickly and almost completely discharged, it is possible to greatly reduce the occupied space when folding and winding the oil fence, and to perform the folding and winding operations very efficiently. .
[Brief description of the drawings]
FIG. 1 is a side view and a cross-sectional view showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing an example of closing an end portion of a bag-like body. FIG. 3 is a cross-sectional view showing an attachment state of an air supply port.
FIG. 4 is a plan view showing a slide fastener and a cross-sectional view of the attached state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bag-shaped body 2 Band-shaped body 3 Joint cloth 4 Rigid pressure plate 5 Bolt 6 Engagement hook 7 Air supply port 8 Slide fastener 8a Slider 9 Chain

Claims (3)

An oil fence formed by attaching a band-like body having a constant width over the entire length to a bag-like body that is expanded into a cylindrical shape by supplying and discharging gas and contracted into a plate shape,
An oil fence comprising an air supply opening and an airtightly closing slide fastener at least at one end of the bag-like body. The oil fence according to claim 1, wherein the slide fastener is disposed in the length direction of the bag-like body. The oil fence according to claim 1 or 2, wherein each of the air supply opening and the slide fastener is provided on the same surface side of the bag-like body in the contracted posture.

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