JP5555197B2 - Fence fence - Google Patents

Description

  The present invention relates to a fractionation fence having a passing gate that allows a ship to pass between water areas separated by a fence.

  In general, driftwood fences are installed in artificial lakes, dam lakes, etc., and in order to allow ships to pass between water areas separated by these fences, it is practiced to install fractional fences with ship gates. ing.

  Conventionally, as such a passing gate, a double door type and a vertical sliding type are known, but in the double door type, there are gaps at the hinges at both ends and the lower part of the door body. On the other hand, in the up-down sliding open / close type, there is a gap in the joint between the side rail and the frame member and the door. For this reason, water contaminated with oil, red tides, sea lions, etc. passes through the fence through the gap.

  In this way, in the fractionation fence having a conventional passing gate, even if the water on the surface of the water surface is fractionated by the fence, the oil or There is a problem that red tides, blue sea bream, etc. pass through the fractionation fence.

  Therefore, in order to prevent the passage of oil, red tides, sea cucumbers, etc., in the up-and-down sliding type, the structure and material that can follow the movement when the door body opens and closes between the both sides of the door body and the impermeable fence adjacent to the door body There has been proposed one in which a water shielding curtain is attached so as to eliminate the gap (for example, see Patent Document 1).

  In the case of the passing gate described in Patent Document 1 described above, when the door body is closed, the door body connected with the impermeable fence and the impermeable curtain maintains a semi-submerged state that is almost upright, and is similar to the impermeable fence. It is possible to prevent water polluted with oil, red tides, blue sea cucumbers, etc. from flowing into the water area that is not polluted with oil, red tides, blue sea breams, etc. through the part of the passing gate. And when a ship passes a ship gate, a door body is pushed down in the advancing direction of a ship by pushing a door body with a ship (passage possible state), and a ship passes over it. After passing the ship, it returns to its original state (water-blocked state) by the buoyancy of the door body (door body float).

JP 2003-328343 A (paragraphs 0004 and 0007)

  However, with the passing gate described in Patent Document 1 described above, when the ship passes through the passing gate, the bottom of the ship and the screw are brought into contact with the float portion forming the door body, and the contact state is reached. Since the ship passes over the float part while maintaining the above, the float part may be damaged by the contact.

  Therefore, an object of the present invention is to provide a fractionation fence capable of avoiding damage to the float portion forming the passing gate when passing through the passing gate.

  The invention of claim 1 is characterized in that the upper part of the curtain having a plurality of floats attached to the lower part is attached to the lower side of the float part having a plurality of floats that are installed in water and arranged at substantially constant intervals. A fractionation fence in which a curtain is suspended in water, wherein the float portion includes a first portion in which a plurality of first floats are arranged corresponding to a region serving as a passing gate, and the first portion And a second portion in which a plurality of second floats are arranged, and the first float has a buoyancy smaller than that of the second float when floated on water. The float portion is provided with a sinking weight so that only the first portion can be selectively submerged below the water surface. Here, “the sinking weight is provided so that only the first portion can sink selectively under the water surface” means that the first float (if the position of the sinking weight is adjusted, etc. Since the buoyancy of the first part) is small, the gravity of the sinking weight causes the second part to float above the water surface, and only the first part sinks below the water surface. It means that the water area that will be the passing gate is formed on the upper side.

  In this way, since only the first portion sinks below the water surface, a water area serving as a passing gate is formed above the first portion, and when the ship passes, the first portion (first float) is Contact with the bottom of the ship and the screw is avoided. In addition, since the first float is formed so as to have buoyancy smaller than that of the second float when floated on water, the sinking weight for changing the state of the first portion (first float) is formed. It is not necessary to increase the weight of the water, and handling of the sinking weight is easy.

  According to a second aspect of the present invention, the sinking weight is provided at an intermediate portion of a wire rope having one end connected to the first portion and the other end connected to the second portion. The other end of the rope is connected to the second portion so that the length of the rope from the connection point to the sinking weight can be adjusted. The rope length from the connection point to the sinking weight By adjusting the height, the first state where the first part and the second part maintain the same water level and float, or the first part sinks from the second part and the first part It is desirable that the second state in which the water area is formed on the part 1 can be selectively taken.

  In this way, the length of the rope from the connection point to the sinking weight can be adjusted, and the sinking weight can be easily moved to a position where the first state or the second state can be taken. .

  In this case, as described in claim 3, the sinking weight is located below the second portion in the first state, while the weight of the first portion is in the second state. What is necessary is just to make it locate below.

  In this way, in the first state, the sinking weight is affected by the second part (second float) having a large buoyancy, and the first part (first float) is prevented from sinking. it can. On the other hand, in the second state, due to the action of gravity of the sinking weight, only the first portion (first float) having a small buoyancy sinks below the water surface and is formed only with water above the first portion. A ship gate is easily formed.

  The connection point of the wire rope to the first and second portions is the longitudinal direction of the float of the first and second floats of the first and second portions. It is desirable to be an intermediate site in

  In this way, since the wire rope is connected to the intermediate portion in the longitudinal direction of the float of the first and second floats, as in the case of connection between the first and second floats, the connecting portion ( It is advantageous in terms of durability because the gravity of the sinking weight acts on the gap portion formed between the float and the float, and the bent portion is prevented from bending.

  According to a fifth aspect of the present invention, it is desirable that the first float has a buoyancy acting in a state of being floated on water substantially equal to the gravity of the first float.

  In this way, the weight of the sinking weight can be reduced, and the operation of sinking or lifting the sinking weight in a fine manner to form a ship gate or cancel the formation becomes easy.

  As described above, the present invention uses the sinking weight to sink the first portion of the float portion below the surface of the water to form a water area to be a passing gate, so that the ship passes. At this time, it is possible to prevent the float portion (first portion) from coming into contact with the bottom of the ship or the screw, thereby preventing damage to the float portion. In addition, since the first float is formed so as to have a smaller buoyancy than the second float when floated on water, it is not necessary to increase the weight of the sinking weight so that a passage gate is formed. It is easy to handle the sinking weight when releasing or releasing the formation.

The fraction fence which concerns on one embodiment of this invention is shown, Fig.1 (a) is a top view, (b) is a partial cross section front view. It is a figure similar to FIG.1 (b) which shows the state which the 1st part sank and formed the ship gate .

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 (a) and 1 (b), a fraction fence 1 according to the present invention has a weight chain 3 (weight) attached to the lower side of a float portion 2 that is floated on water. The curtain campus 4 is suspended in the water by attaching the upper portion of the curtain campus 4 formed. This fractionation fence 1 is connected to an adjacent fence (not shown) via D ring-attached metal fittings 5A, 5B, etc., and separates the water area.

  The float unit 2 includes a cylindrical float cover cloth 5 (for example, made of PVC) and a plurality of first and second floats 6 and 7 disposed therein at regular intervals. The floats 6 and 7 are covered with the float cover cloth 5 and are protected by the float cover cloth 5. . The float portion 2 is located in the center and has a first portion 2A where a plurality of first floats 6 are arranged, and a plurality of second floats 7 located on both sides of the first portion 2A. The first part 2A corresponds to the passing gate area S (see FIG. 2).

  Each first float 6 is formed so as to have a smaller buoyancy than each second float 7 in a state of floating in water. Specifically, the first float 6 is formed as a cylindrical body having the same float length but a different float diameter so that the buoyancy is smaller when floated in water than the second float 7. They are arranged at regular intervals along the longitudinal direction of the campus. Since the first and second floats 6 and 7 are cylindrical bodies having different diameters, the central axis of the first float 6 is positioned below the central axis of the second float 7.

  In this embodiment, the first float 6 is formed so that the buoyancy acting in a state of floating in water is substantially equal to the gravity of the first float 6. The floats 6 and 7 are formed in a cylindrical body with a foamed resin (for example, styrofoam) having a small specific gravity. The first float 6 has a diameter of 100 mm, for example, and the second float 7 has a diameter of 300 mm, for example.

  In the float portion 2, a sinking weight 11 for selectively sinking only the first portion 2 </ b> A below the water surface is utilized between the first portion 2 </ b> A and the second portion 2 </ b> B using the wire rope 12. Is provided.

  Wide first reinforcing belts 21A and 21B extending along the longitudinal direction of the campus are provided on the front and back sides of the upper and lower edges of the curtain campus 4, and the campuses are provided on the front and back sides of the left and right side edges. Wide reinforcing belts 21C and 21D extending along the vertical direction are provided. Similarly, narrow second reinforcing belts 22A and 22B extending along the longitudinal direction of the campus are also provided on the front and back sides of the intermediate portion of the curtain campus 4 in the vertical direction. In addition, narrow reinforcing belts 22C, 22D, and 22E extending in the vertical direction of the campus are provided at regular intervals in the longitudinal direction of the campus. The reinforcing belts 21A to 21D and 22A to 22E are made of, for example, polyester woven cloth, and the width of the wide reinforcing belts 21A to 21D is about twice the width of the narrow reinforcing belts 22A to 22E. The reinforcement strength is higher than the central part of the campus.

  As for the wire ropes 12 and 12 which provide the weight 11 for sinking in the float part 2, one end part is connected with the 1st part 2A, and the other end part is connected with the 2nd part 2B, respectively (refer connection point P1, P2). . Specifically, wire ropes 12 and 12 are stretched between portions of the reinforcing belt 21A corresponding to the first portion 2A and the left and right second portions 2B and 2B, respectively. One end of each wire rope 21 is fixed to a reinforcing belt 21A corresponding to a position that divides the first portion 2A into approximately three equal parts in the campus longitudinal direction.

  A sinking weight 11 is provided at an intermediate portion of the wire rope 12. The other end of the wire rope 12 is connected to the second portion 2B so that the rope length from the connection point P2 to the sinking weight 11 can be adjusted. For example, a locking metal fitting 23 is attached to the second portion 2B, and the other end of the wire rope 12 is connected to the locking metal fitting 23 so that the rope length can be adjusted.

  Then, by adjusting the length of the rope from the connection point P2 to the sinking weight 11, the first state 2A and the second portion 2B maintain the same water level and float in the first state (FIG. 1). Or the second state (see FIG. 2) in which only the first part 2A sinks from the second part 2B and forms a water area (passage gate) on the first part 2A. It is set as the structure to obtain.

  In the first state, the sinking weight 11 is positioned below the second part 2B, and the gravity of the sinking weight 11 is received by the second part 2B having a large buoyancy while floating in water. To. That is, the sinking weights 11 and 1 are positioned near the second portions 2B and 2B.

  On the other hand, in the second state, the sinking weight 11 is positioned below the first portion 2A, and the gravity of the sinking weight 11 is received by the first portion 2A having a small buoyancy while floating in water. To. As a result, the gravity of the sinking weight 11 acts on the first portion 2A, so that only the first portion 2A is selectively submerged below the surface of the water. A water area is easily formed. In this second state, the length of the rope from the connection point P2 to the sinking weight 11 is adjusted, and the length of the rope portion 12A on the side connected to the first portion 2A as shown in FIG. The length L1 is shorter than the length L2 of the rope portion 12B on the side connected to the second portion 2B (L1 <L2), and the sinking weight 11 is substantially vertically downward on the first portion 2A side. It is supposed to sink.

  The connection points P1, P2 of the wire rope 12 to the first and second portions 2A, 2B are the floats of the first and second floats 6, 7 of the first and second portions 2A, 2B. It is an intermediate part in the longitudinal direction, and it is avoided that the connecting part bends as in the case of connecting to the part between the first and second floats 6 and 7. Therefore, it is avoided that stress concentrates on the bent portion and the float covering 5 is broken.

  If comprised as mentioned above, the connection (connection point P2) of the other end part of the wire rope 12 will be cancelled | released, the rope length to the weight 11 for sinking will be adjusted, and the weight 11 for sinking will be the 1st part. Move below 2A and reconnect. As a result, the gravity of the sinking weight 11 acts downward on the left and right side portions of the first portion 2A, so that the buoyancy of the first portion 2A (first float 6) is small. The first portion 2A sinks below the water surface with the connecting portion of the rope portion 12A) as the center.

  As a result, as shown in FIG. 2, the central portion of the first portion 2A sinks below the water surface, and the first portion 2A sinks to a position lower than the second portion 2B. Become. In this state, a water area is located above the first portion 2A, and this water area becomes a passing gate. Since the ship passes through the water area (passage gate), the bottom of the ship and the screw will not come into contact with the float part 2 (first part 2A), and damage to the float part 2 when passing through the pass gate is avoided. Is done.

  After the ship has passed, if the other end of the wire rope 12 is disconnected and the sinking weight 11 is lifted and moved so as to be positioned below the second portion 2B, the first portion 2A Since the gravity of the sinking weight 11 does not act on the first portion 2A, the first portion 2A floats on the water surface by the buoyancy of the first float 6 as shown in FIG. Further, since the second float 7 is set so that its buoyancy overcomes the gravity of the sinking weight 11, the float part 2B does not sink below the water surface. Thus, the first float 2A maintains the same water level as the second float 2B and enters the first state where it floats, and the passage of oil, red tides, sea lions, etc. is blocked.

  Thus, according to the state (position) of the sinking weight 11, the first portion 2A corresponding to the passing gate selects the first state (see FIG. 1) or the second state (see FIG. 2). Can be taken.

  The present invention can be implemented by changing the embodiment as follows.

  (i) In the above-described embodiment, two sets of the wire rope 12 and the sinking weight 11 are provided symmetrically with respect to the first portion 2A of the float portion 2, but with respect to the central portion of the first portion 2A. Only one set may be provided, or three or more sets may be provided at equal intervals or unequal intervals with respect to the first portion 2A.

  (ii) In the above embodiment, the first and second floats 6 and 7 change the buoyancy by changing the diameter, but the buoyancy is changed by changing the float length by making the diameter the same. It is also possible to do so. Further, the first float having a small buoyancy provided in the first portion 2A does not need to have the same shape, and the first float having a plurality of types of shapes is used so as to obtain a desired shape of the passage gate. Is also possible.

  (iii) In the above embodiment, the weight for suspending the carte campus 4 is the sinking chain 3, but it is a plurality of weights provided at regular intervals along the lower edge of the curtain campus. Is also possible.

(iv) In the above embodiment, the wire rope 12 is provided between the first part 2A and the second part 2B of the float part 2, but the rope part 12B on the second part 2B side the end, the second portion 2B (float portion 2A) without, it is also possible to have a structure for connecting the auxiliary float another (separate) from the float part 2. In this way, in either floated or not floated auxiliary float, the first part 2A and or the first state and the second portion 2B are floating maintaining the same level, the first part 2A However, it can selectively take the 2nd state which sinks from the 2nd part 2B, and forms the water area which enables ship passage on the 1st part 2A.

DESCRIPTION OF SYMBOLS 1 Fence fence 2 Float part 2A 1st part 2B 2nd part 3 Weight sink chain 4 Curtain campus 6 1st float 7 2nd float 11 Weight for settlement 12 Wire rope 12A, 12B rope part
21A reinforcement belt

Claims (5)

The curtain is suspended in the water by attaching the upper part of the curtain with a weight attached to the lower part to the lower side of the float part having a plurality of floats that are floated on the water and arranged at almost regular intervals. A fractional fence,
The float portion corresponds to a region serving as a passing gate, a first portion where a plurality of first floats are disposed, and a first portion where both of the first portions are disposed on both sides of the first portion. The first float is formed so that the buoyancy is smaller than that of the second float in a state of floating in water,
The fraction fence, wherein the float portion is provided with a sinking weight so that only the first portion can be selectively set below the water surface. The sinking weight is provided at an intermediate portion of a wire rope having one end connected to the first portion and the other end connected to the second portion. The connection to the portion 2 is made so that the length of the rope from the connection point to the sinking weight can be adjusted.
By adjusting the length of the rope from the connection point to the sinking weight, the first part and the second part maintain the same water level and float, or the first state The fraction fence according to claim 1, wherein the portion is configured to be able to selectively take a second state of sinking from the second portion and forming a water area on the first portion. .   3. The sinking weight is located below the second part in the first state, and is located below the first part in the second state. Or the fractionation fence of 3.   The connection point of the wire rope to the first and second parts is an intermediate part of the first and second parts in the longitudinal direction of the float of the first and second floats. The fraction fence according to claim 2 or 3.   5. The component according to claim 1, wherein the first float has a buoyancy acting in a state of floating in water substantially equal to the gravity of the first float. Painting fence.

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