JP2006006239A - Float cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a float cover capable of covering the whole surface of a float for preventing the deterioration and scattering of the float made from a foamed resin, less expensive than the conventional float made from a hard resin and discharging water filling the gap between the cover and the float made from the foamed resin quickly on recovering the used float to improve the working property of its recovering work. <P>SOLUTION: This float cover 1 capable of opening and closing and covering the whole surface of the float made from the foamed resin is formed in a prescribed plate thickness by using a resin having weather resistance and water proof property and also equipped with a water-discharging part (saw teeth-shaped slits 4) for discharging water in the inside of the cover 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a float cover for covering the entire surface of a float made of foamed resin such as a float made of styrene foam, for floatation of a facility for shellfish culture such as oyster culture or a fish culture culm on the water. is there.

  At present, styrene foam floats used in sea surface aquaculture etc. are used with a bag-like cover sewn with polyethylene cloth or the like.

  This is because when the float made of Styrofoam is used without a cover, the Styrofoam beads (particles) that make up the Styrofoam float are scattered due to surface deterioration due to ultraviolet rays, rubbing against the coral due to wave power, impact due to ship berthing, etc. This is because the buoyancy is lowered and the scattered beads become floating dust and deteriorate the surrounding environment.

  In addition, seaweeds, crustaceans and shellfish are attached to the part that is constantly immersed in seawater in such a foam made of styrene foam, and the surface of the float is eroded due to its ecological activity, and the polystyrene foam beads are scattered as described above. Become.

  However, even when measures are taken using a bag-like cover sewn with polyethylene cloth, the cover itself is often damaged due to rubbing due to wave motion or deterioration due to ultraviolet rays, and its durable life is as short as 2 to 3 years. The cover must be replaced frequently. Since this replacement work cannot be performed in a state where it is installed in a culture trough or the like, the float must be removed and attached at sea, which is a work involving danger and labor. For this reason, it is not uncommon for the cover to be left damaged if the growing period of the aquaculture target and the cover replacement cycle do not match.

  Patent Document 1 discloses a structure for reducing the maintenance effort for a float. This is a resin detachable float cover designed to prevent shellfish from adhering to the lower part of the spherical float, and wraps both sides of the float with two cover pieces each provided with a connecting part at the lower part. A fastening piece is provided across the upper part of both cover pieces so that it can be attached and detached, and a notch is provided in the upper part of each cover piece, and the head of the float is placed above the float cover from this cut. However, this is not intended for styrofoam floats, and is not suitable because it requires the strength of the float top surface to support the wrinkles.

  From the same viewpoint as described above, a float with a hard resin surface is manufactured, but the price is three to five times that of a conventional styrofoam float, and the economic burden on the fisherman is large. Since the material is a hard resin, the coefficient of friction of the surface is low, and there are problems such as slipping of a rope attached to the heel and the like, which is not widespread.

  In addition, it is regarded as a problem that the disposal treatment of the used polystyrene foam float is expensive, and there is a structure disclosed in Patent Document 2 as one of methods for solving this. This is a marine float constructed by filling a plastic or FRP container with hermetically sealed bottles or non-water-immersive foamed plastic pieces, and sealing the container. Therefore, it is not popular.

In addition, as one of the problems in using a bag-like float cover sewn with polyethylene cloth fabric, when recovering the float used at sea, the water infiltrated inside increases the weight and improves workability. It is getting worse.
Japanese Utility Model Publication No. 6-45448 Japanese Utility Model Publication No. 6-61064

  Therefore, the present invention can cover the entire surface of the float in order to prevent deterioration and scattering of the float made of foamed resin, is cheaper than the conventional hard resin float, and is also made of foamed resin when recovering the used float. An object of the present invention is to provide a float cover that quickly discharges water that has entered the gap between the float and the cover and improves the workability of the recovery operation.

  It is another object of the present invention to provide a float cover that has a function of preventing falling off of wrinkles due to slipping of a rope or the like that fixes a float, which is a problem of a hard resin float.

  In order to achieve the above object, the float cover according to the present invention is an openable and closable float cover that covers the entire surface of the foamed resin float, and is made of a resin having a high weather resistance and water resistance to a predetermined plate thickness. It is formed and has a drainage part for draining water in the cover.

  In addition, the drainage part is formed with an opening through which the foamed resin particles constituting the foamed resin float cannot flow out.

  Furthermore, a handle member attached so as to go around the outer circumference of the foamed resin float one or more times is provided.

  Further, as the drainage portion, a sawtooth slit is formed in a portion where the float mounting member is wound and tightened.

  By attaching the float cover according to the present invention to the foamed resin float, the entire surface of the float can be covered to prevent deterioration and scattering of the foamed resin float, and the structure is simplified by not providing a drain and sealing. It is cheaper than conventional hard resin floats, and even when performing float lifting work to collect used floats, the water in the gap between the foamed resin float and the cover can be quickly discharged to lift the floats. Reduces weight and improves workability of collection work. In addition, the used float can be reused, and when a new foamed resin float is used, the durability can be dramatically improved and the maintenance labor can be reduced.

  Moreover, the foamed resin particles constituting the foamed resin float when the used float is reused by forming an opening through which the foamed resin particles constituting the foamed resin float cannot flow out as the drainage part. Even if it falls off, it can be prevented from being scattered as trash.

  In addition, by providing a handle member attached so as to go around the outer circumference of the foamed resin float more than once, the tensile force acting on the handle is applied to the foamed resin float inside, so the float cover There is no need for strength, and local plate thickness increases and cost increases due to the insertion of metal fittings can be avoided.

  Further, by forming a serrated slit in the portion where the float mounting member is wound and tightened as the drainage portion, in addition to the above-described operation effect of the drainage portion, by tightening the float outer periphery with the float mounting member The serrated slits formed in this part are deformed toward the inside of the float cover, and both are fixed by biting into the foamed resin float in a spike shape, and the float mounting member bites into the float appropriately. To prevent.

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

  1 is a front view of a float F fitted with a float cover according to an embodiment of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a cross-sectional view taken along the line AA in FIG. 1, and FIG. -B sectional view, FIG. 5 is a sectional view taken along the line C-C in FIG. 1, FIG. 6 is a mounting view of the float cover, FIG. 7 is a top view of mounting to the bag, and FIG.

  The float cover 1 of the present embodiment is an openable / closable resin cover that covers the entire surface of the cylindrical foam float 2, and the cylinder is cut in half, leaving one side cut as shown in FIG. 6. It is formed into a shape and configured to be openable and closable.

  More specifically, the float cover 1 is formed by rotational molding or blow molding using a polyethylene resin, a polypropylene resin, or the like that is rich in weather resistance and water resistance. The diameter is φ690 mm, the length is 1160 mm, and the plate thickness is formed between 0.5 mm and 3 mm. The clearance with the foamed polystyrene float 2 is about 2 to 5 mm.

  After the float cover 1 is attached to the polystyrene foam float 2 as shown in FIG. 6, a claw for preventing the holes 1b, 1b formed corresponding to the peripheral edges of the opening / closing ports 1a, 1a is formed. By fastening with the resin clip 3, the entire surface of the polystyrene foam float 2 is covered, and the foam beads constituting the polystyrene foam float 2 are prevented from falling off and scattered by external force, and the light-shielding property is provided to cause deterioration due to ultraviolet rays. You can prevent it.

  The float cover 1 does not seal the float 2 made of Styrofoam. The float cover 1 has a serrated slit 4 formed in a portion where a later-described float mounting band 7 is wound and tightened around the periphery of the float cover 1. It is possible. By not sealing, the structure can be simplified and it can be manufactured at a lower cost.

  The serrated slit 4 is a slit having a width of less than 3 mm so that spherical foam beads having a diameter of 3 mm constituting the polystyrene foam float 2 do not flow out. The serrated slits 4 are provided at regular intervals, and a groove 1c that is one step lower than the cover surface is formed between the serrated slits 4. This is because the slits are cracked if they are all around, and the grooves 1c are arranged at regular intervals because the resistance when the float mounting band 7 is fastened is too large.

  The above-described mass transfer between the inside and the outside means here the movement of water, and when the float 2 made of polystyrene attached with the float cover 1 is lifted from the water to the ship, the water in the gap between the float cover 1 and the float 2 made of resin foam Thus, the weight is increased and the workability is extremely deteriorated. Therefore, the water is quickly discharged from the sawtooth slit 4 to reduce the weight and improve the workability.

  Here, there is concern that seaweeds, crustaceans and shellfish will adhere due to the substance transfer inside and outside, and the float surface may be eroded by the ecological activity, but sunlight is blocked inside the float cover 1 Therefore, it has been confirmed that it is not suitable for breeding organisms and does not reproduce in large quantities, and the styrene foam float 2 is not seriously damaged.

  After attaching the float cover 1 to the polystyrene foam float 2, the resin clip 3 closes the opening / closing opening 1a to form the float F. However, since there is no handle when carrying this, the handle rope 5 is shown in FIG. 5, the cover of the float cover 1 is arranged so as to be sewn, and after assembling the float F, the rope ends are tied together to form the handle 6.

  By forming the handle 6 by the above method, the load applied to the handle 6 is received by the internal polystyrene float 2, so the float cover 1 does not need the strength for it, and the cost increases by locally increasing the plate thickness and inserting metal fittings. Avoid.

  In addition, the float F is attached to a cocoon such as oyster aquaculture by placing the float F below the pair of rails R (see FIGS. 7 and 8) spanned down over the longitudinal direction of the cocoon. The wire (wire) 8 connected to both ends of the float mounting band 7 wound on both sides of the float F body is torsionally rotated on the pair of rails R and fixed to the heel by applying tension (this book) The method is a common float fixing method for oyster farming).

  At this time, the force that the float mounting band 7 bites into the float F is generated, so that the serrated slit 4 is deformed toward the inside of the float cover 1 and bites into the styrofoam float 2 in a spike shape, and the float cover 1 and styrofoam are made. The float 2 is fixed, and the float band 7 bites into the float moderately to prevent displacement.

  This float cover 1 can be used by using not only a new foamed resin float 2 but also a used float in the interior, and consideration is given to effective utilization of resources.

  In this way, by attaching the float cover 1 to the foamed polystyrene float 2, it becomes possible to reuse the used float, and when the new foamed polystyrene float 2 is used, a dramatic improvement in durability and maintenance can be achieved. Labor can be reduced.

  9 is a front view of a float F equipped with a float cover according to another embodiment of the present invention, FIG. 10 is a side view thereof, FIG. 11 is a cross-sectional view taken along line EE of FIG. 9, and FIG. It is an attachment figure, The same code | symbol as the said embodiment has shown the same or an equivalent part.

  In the present embodiment, a float cover left 9 and a float cover right 10 formed by dividing a cylindrical float cover 1 into two left and right parts are shown in FIG. 12 as a cylindrical foam float 2 similar to the above embodiment. The resin clip 3 is inserted and fixed in the holes 9b and 10b formed on the opening edges 9a and 10a and overlapped with each other. The serrated slit 4 also exists as having the same function as that of the above embodiment, but in this embodiment, the drain hole 11 is formed in the peripheral edge of the float cover 1 in order to increase the water discharge efficiency. Other functions and effects are the same as in the above embodiment.

The front view of the float with which the float cover which concerns on one Embodiment of this invention was mounted | worn. The side view. AA sectional drawing of FIG. BB sectional drawing of FIG. CC sectional drawing of FIG. Float cover installation drawing. Installation drawing on the heel. DD sectional drawing of FIG. The front view of the float with which the float cover which concerns on other embodiment of this invention was mounted | worn. The side view. EE sectional drawing of FIG. Float cover installation drawing.

Explanation of symbols

F Float R Rail 1 Float cover 1a Opening and closing port 1b Hole 1c Groove 2 Styrofoam float 3 Resin clip 4 Sawtooth slit 5 Handle rope 6 Handle 7 Float mounting band 8 No. 9 Float cover left 9a Open edge 9b Hole 10 Float Cover right 10a Open edge 10b Hole 11 Drain hole

Claims (4)

  A float cover that can be opened and closed to cover the entire surface of the float made of foamed resin. The float cover is made of a weather-resistant and water-resistant resin and has a predetermined thickness. Float cover featuring.   The float cover according to claim 1, wherein the drainage part is formed with an opening through which foamed resin particles constituting the foamed resin float cannot flow out.   The float cover according to claim 1 or 2, further comprising a handle member attached so as to go around the outer circumference of the foamed resin float one or more times. The float cover according to any one of claims 1 to 3, wherein a sawtooth slit is formed in a portion where the float mounting member is wound and tightened as the drainage portion.