JPH07222541A - Sandbag for fixed fishnet - Google Patents

Abstract

PURPOSE:To make it possible to do a charging work readily even for oneself, improve workability for conveyance or laying and enable exertion of a sufficient fixing force. CONSTITUTION:A grand fabric 1 is cut to a desired length and a closable opening part 2 through which a suitable closing rope 2A is inserted is attached to the upper end part. A horizontal bottom part 5 is formed at the lower end part by folding the right and back sides of the grand fabric 1 up onto one side, then sewing them together to form a temporary bottom part 4 and subsequently extending the resultant temporary bottom part 4 to a rectangular shape or a square shape so that the whole length of the four sides may be almost equal to the circumference of the body part 3 of the temporary bottom part 4 whereas the length of the shorter sides is >=16cm. Accompanying this extension, both the side end parts of the temporary bottom part 4 and both the lower side parts of the body part 3 are deformed to form almost horizontally extended triangular stabilizing holding wings 6 on both the outsides of the bottom part 5. The right and back sides of the ground fabric l of the base part of the extended part 7 are sewn together or a hole or a slit is made at a suitable position of the stabilizing holding wing 6, thus producing the objective sandbag for a fixed fishnet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sandbag for fixing a fixed net in the sea and expanding it. More specifically, the efficiency of the filling work of earth and sand and rocks and the safety in use are improved. Also, the present invention relates to a sandbag of a fixed net having excellent fixing and locking properties.

[0002]

2. Description of the Related Art A set net fishery involves the spread of a net rope structure consisting of hedge nets, playground nets, climbing nets and box nets at a predetermined location in the sea for a long period of time, mainly threatening migratory fish schools with the nets. It is a fish group that is guided and once divided into a playground net, and then secondary guided by a rising net to be trapped in a box net and then caught. Since the fence net that intimidates and guides is stretched in a direction substantially transverse to the tidal current direction, its length is several hundred meters even for small stationary nets and several thousand meters for large stationary nets.

Further, the group of fishes divided into the playground net is a mechanism for secondarily guiding the swimming layer to the upper water depth by the rising net and then piercing it into the box net to prevent escape. The water depth of the climbing net or box net is about 20 to 40 m even for small stationary nets and about 40 to 70 m for medium to large stationary nets, so that the tidal current resistance and wave resistance constantly added to the entire stationary net is extremely large. Therefore, especially in stormy weather or during high tide, a stronger resistance will be added.

In the early stage of the fixed locking of such a fixed net, rice bales and hemp bags were exclusively used, but since these are natural materials, they are apt to rot and wear severely when laid and used in the sea, and a dole is required. As a result of the pressure, it was tried to use concrete anchors and gold anchors for a while,
Such concrete anchors and gold anchors have problems such as requiring a special mechanical ship when laying in the sea, or that the locking force does not work sufficiently when the bottom material is bedrock or mud, etc.
So-called synthetic fiber sandbags made of synthetic fiber materials have been used since the 0's.

When the fixed net is fixed and locked by the synthetic fiber sandbag, from the viewpoint of handleability related to the movement of the earth and sand, rocks, etc. when laying the sandbag, movement, transportation work, and drop laying work, etc. Approximately 50 to 60 kg per bag is suitable, while the amount of laying used is about 3000 to 8000 even for small stationary nets, although it varies depending on the scale of the fixed net and the fishing ground conditions such as tidal currents, waves and bottom sediments in the expanded sea area.
An enormous amount of approximately 30,000 to 100,000 bags is required for a large bag stationary network.

[0006]

For this reason, the present synthetic fiber sandbags have a capacity capable of filling about 50 to 60 kg of earth and sand, rocks, etc., and endure fixed locking by handling and laying during filling work, transport work, laying work, etc. In order to maintain the tenacity, a polyethylene or polypropylene tape yarn having a fineness of about 1000 denier is woven into a warp and a weft with a weaving density of about 8 to 12 to make a width of about 50. A bag having a length of about 60 to 60 cm and a length of about 80 to 100 cm and a closed rope inserted at the upper end is used.

[0007] However, the synthetic fiber sandbag has to be worked by two persons, such as one person having to open it and the other person has to fill it when filling the earth and sand or rock rather than the cost of the sandbag itself. An enormous amount of labor, time, and cost are required for filling a huge amount, and since the synthetic fiber sandbag becomes a rounded columnar shape due to the filling of earth and sand or rocks,
Poor workability due to difficulty in gripping and slipping during transportation or laying work, and tidal current resistance and wave resistance are added via the rope for closing and connecting the synthetic fiber sandbag to fix and lock the stationary net even after laying. It rolls easily every time, and not only the fixed locking force is reduced, but also wear is generated along with the rolling. Therefore, there is still a problem that the ring must be frequently added to add a ring. The present invention has been made in view of the above problems, and the present invention provides a stationary net which can not only be easily filled by one person, but is also excellent in workability in transporting and laying, and can sufficiently exhibit a fixed locking force. To provide sandbags.

[0008]

In order to solve the above-mentioned problems, the technical means used by the present invention is to use a polypropylene tape yarn raw yarn having a fineness of 500 to 3000 denier for a textile material forming a sandbag, A polyethylene tape yarn raw yarn having a weaving density of at least 12,000 denier or more in the total fineness of the warp and the weft per inch (the number of warp threads used or the number of wefts per inch) is 500 to 3000 denier. And the total fineness of warp or weft per inch is at least 16000
Using a woven fabric woven in a tubular shape with a denier density of denier or more, cut it to the required length and provide an opening part that can be opened and closed by inserting an appropriate closing rope at its upper end and at the lower end. A temporary bottom is once formed by folding and stitching the textile fabrics on the front and back to one side, and the temporary bottom is four sides approximately equal to the circumference of the body, and the length of the short side is at least 16 cm or more. To form a horizontal bottom by expanding it into a rectangular or square shape, and with this expansion, both side edges of the temporary bottom and lower parts of both sides of the trunk part are deformed, so that a triangular stable support wing is formed on both sides of the horizontal bottom. To extend the
Further, there exist a structure in which the fabric bases on the front and back of the extending base portion of the stable supporting blade are stitched together, and a structure in which holes or slits are formed at appropriate positions in the stable supporting blade.

[0009]

According to the technical means of the present invention, a polypropylene tape yarn raw yarn having a fineness of 500 to 3000 denier is used as the textile material forming the sandbag, and the total fineness of the warp and the weft per inch is at least 12,000 denier. With the above woven density or fineness of 500 to 300
Using 0 denier polyethylene tape yarn raw yarn,
The total fineness of warp and weft per inch is at least 16
Since a woven fabric having a woven density of 000 denier or more is used, not only polypropylene tape yarns which are soft and bulky, but also polyethylene tape yarns which are softer and more slippery, the warp and weft yarns are firmly and closely woven together. The rigidity of the textile substrate is significantly increased.

The tubular textile base material is cut into a required length, an appropriate closing rope is inserted into the upper end of the tubular textile base material to form an openable / closable opening, and the lower end of the tubular textile base material is provided with front and back textile materials. Is sewn back to one side to form a temporary bottom portion, and the temporary bottom portion is extended horizontally into a rectangle or a square having a four-side length substantially equal to the circumference of the body and a short side length of at least 16 cm or more. Since it forms the bottom part, the lateral width is deformed and contracted by the rate at which it is expanded in the longitudinal direction of the lower end of the body part, but the temporary bottom part cannot be contracted because the front and back woven fabric bases are sewn together. Both ends of the temporary bottom portion are deformed by being pulled in the vertical width direction along with the contraction of the lower end of the trunk portion, and triangular stable support wings are formed to extend substantially horizontally outward from both sides of the bottom portion.

Further, the bottoms are fixed in a predetermined rectangular or square shape by stitching the woven fabric bases on the front and back sides of the extending bases of the stably formed support wings. Since the upper end is provided with an opening, a small amount of earth and sand or rock is injected from the opening during the filling work so that the earth and sand and the rock are spread horizontally and to a rectangular or square bottom, Further, since the textile substrate forming the present invention has rigidity, the diffusion force is propagated upward through the body portion formed of the textile substrate, the opening is further expanded, and the whole becomes self-standing.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view of the present invention, FIG. 2 is a side view showing a state in which a temporary bottom portion is formed, and FIG. 3 is an expansion of the temporary bottom portion. An explanatory diagram showing
FIG. 4 is a schematic view showing the storage state of the present invention, in which the textile base material used in the present invention starts imparting rigidity capable of exhibiting self-standing property, holds the filling for a long period of time, and exhibits a fixed locking force. Due to its excellent toughness, low cost, and excellent productivity, polypropylene tape yarn or polyethylene tape yarn raw yarn with a fineness of 500 to 3000 denier is used, and there are various reasons why such fineness is recognized. The reason is that tape yarns are tough, have high bulkiness and flexibility, and can be used even with a large weaving machine. It depends on the cheapness.

Since polypropylene tape yarns are relatively strong, in order to impart rigidity by weaving the so-called warp and weft yarns tightly and closely together, which is required to achieve the object of the present invention, It is essential that the warp and weft yarns be woven with a weaving density such that the total fineness is at least 12000 denier, which means that when using a raw yarn with a fineness of 500 denier, It means that the warp and the weft are woven with a weave density of at least 24 or more. On the other hand, when using polyethylene tape yarn as the raw yarn, since it has higher flexibility and slipperiness than polypropylene tape yarn, it is necessary to tightly adhere the warp yarn and the weft yarn to each other and weave them together. It is important that the warp and weft have a total fineness of at least 16,000 denier or more.

The woven fabric base 1 is formed by weaving the raw yarn and the woven density into a tubular shape as described above. The weave width of the woven fabric base 1 is appropriately determined by the filling capacity. Alternatively, since it is filled with about 50 to 60 kg of rock, a weaving width of about 50 to 60 cm can be sufficiently used. The woven fabric 1 thus obtained is cut into a required length, in the present invention, a length of about 80 to 100 cm, and an appropriate closing and connecting rope 2 is provided at the upper end thereof.
There is provided an opening / closing opening 2 through which A is inserted, and the closing / connecting rope 2A is connected to a locking net for firmly closing the opening 2 and fixing and locking the fixed net. The present invention is not particularly limited as long as it retains strength enough to be locked on the seabed for a long period of time. Usually, a synthetic fiber material having a diameter of about 5 to 8 mm is selected. Moreover, the length is about 3 to 6 m. Further, the means for inserting the closing and connecting rope 2A is not particularly limited, but normally the upper end textile material 1 is folded back inward, and the covering suture 2B is inserted so that the closing and connecting rope 2A can be inserted therein.
It is a good idea to let them do it.

Thus, the body 3 is formed at the lower part of the fabric base 1 having the opening 2 formed at the upper end thereof, and the lower end of the body 3 of the moon is formed by tubularly woven front and back surfaces. The fabric base 1 is folded back and sewn to one side to form the temporary bottom portion 4. Then, the provisional bottom portion 4 is expanded into a rectangular or square shape having four sides substantially equal to the circumference of the body portion 3 and the length of the short side thereof is at least 16 cm or more, whereby the horizontal bottom portion 5 is formed. Has been formed. In such a case, there are various conceivable means for expanding the provisional bottom portion 4, but as a simple means, the outer peripheral length is previously four sides which are slightly shorter than the peripheral length of the body portion 3, and the length of the short side thereof is long. Is at least 16 cm
The rectangular or square wooden mold described above is prepared, the wooden mold is inserted through the opening 2 and the temporary bottom 4 is pressed, whereby expansion can be easily performed.

Further, when the temporary bottom portion 4 is expanded, the horizontal width direction needs to be reduced by the rate at which the fabric base 1 at the lower end of the trunk portion 3 is expanded in the longitudinal width direction.
Since the front and back sides of the fabric base 1 forming the base are sewn together, the fabric base 1 cannot be expanded. Therefore, the fabric base 1 at the lower end of the so-called body part 3 in the vicinity of the temporary bottom part 4 is expanded in the vertical width direction. The provisional bottom portion 4 is formed as a horizontal bottom portion 5, and both side ends 4A of the provisional bottom portion 4 are stretched and deformed in the vertical width direction and extend outwardly on both sides of the bottom portion 5 as substantially triangular triangular stable support wings 6. Will be formed.

However, since the horizontal bottom portion 5 and the stable supporting blades 6 formed by the expansion of the textile base material 1 at the lower end of the body portion 3 are simply deformed by the expansion and are formed as they are, such a state is obtained. If it is left as it is, if the soil or rock is filled, the bottom 5 and the stable supporting blades 6 which are formed in a horizontal shape at all are deformed. For this reason, the bottom 5 is fixedly formed in a rectangular shape or a square shape by sewing the front and back of the fabric base 1 of the extending base portion 7 of the stable supporting wing 6 which is extended and formed with the expansion, and the stable supporting wing 6 is also formed. The product 8 of the present invention is formed by being fixedly formed in a triangular shape.

Further, in the present invention, in addition to the simplification and efficiency of the filling work, the efficiency of the transportation work and the laying work can be achieved. At an appropriate position of the stable supporting wings 6 formed,
This can be solved by providing a hole 6A having an appropriate diameter or a slit (not shown) having an appropriate length so as to penetrate through the front and back of the textile substrate 1 forming the stable supporting blade 6. In this case hole 6A
It is convenient that the diameter of 2 is approximately 2 to 4 cm so that a hook or a fingertip can be inserted, and in the case of a slit, approximately 7 to 10 cm is desired so that the entire finger can be inserted and grasped.

[0019]

The present invention uses the above-described technical means, and has an openable and closable opening at the upper end through which a closing and connecting rope is inserted, and the lower end has a short side length. A rectangular or square horizontal bottom of at least 16 cm or more is formed, and since the opening and the bottom are formed integrally with the body made of a woven fabric having rigidity, the opening is slightly smaller than the opening. By adding earth and sand or rocks to the bottom, the earth and sand and rocks are diffused over the entire bottom, and this diffusion force propagates through the woven fabric base of the body having rigidity to further spread the opening, and The stable support wings are extended substantially horizontally on both sides, so that the self-standing property is exhibited and the stable standing condition is maintained, so that the filling work can be easily performed by one person, and the form after filling Also has a rectangular or square bottom Since the stable supporting wings are also extended, it is difficult to slip during transportation and laying work, and the work can be done efficiently, and since the stable supporting wings can be grasped and the work can be performed, there is no danger of slipping and there is no safe work. Get Furthermore, since the bottom of the present invention is rectangular or square, the tidal current and wave resistance received by the stationary net when it is laid and laid on the seabed in a large amount does not easily roll even if added through the blocking and connecting rope. The fixed locking force is exerted, and the wear of the textile material is also significantly reduced, so that the amount of additional metal ring can be significantly reduced, and the bottom part can be folded for compact storage and storage before use. It is a sandbag of the fixed net with the features.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of the present invention.

FIG. 2 is a side view showing a state in which a temporary bottom portion is formed.

FIG. 3 is an explanatory diagram showing expansion of a temporary bottom portion.

FIG. 4 is a schematic view showing a stored state of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Textile base 2 Opening 2A Closure and connection rope 2B Encapsulation stitching 3 Body 4 Temporary bottom 5 Bottom 6 Stable support wing 7 Extension base

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B65D 33/28

Claims (3)

[Claims] 1. A woven fabric base made of polypropylene tape yarn having a fineness of 500 to 3000 denier, which is woven into a tubular shape with a weaving density such that the total fineness of warp and weft per inch interval is at least 12,000 denier. The upper end is provided with an opening / closing opening through which a suitable closing rope is inserted and the lower end is folded back and sewn to one side to form a temporary bottom, and then the temporary bottom is attached to the trunk. A horizontal bottom is formed by expanding a rectangular or square shape whose four sides are substantially equal to the circumference and whose short sides have a length of at least 16 cm or more, and both sides of the temporary bottom and the body part accompanying the expansion. It is characterized in that a triangular stable supporting wing is formed to extend outward on both sides of a horizontal bottom by deformation of the lower parts of both sides, and the fabric bases on the front and back of the extending base of the stable supporting wing are sewn together. Set net sandbag. 2. Using a polyethylene tape yarn raw yarn having a fineness of 500 to 3000 denier, and using a textile material woven into a tubular shape with a fineness such that the total fineness of warp and weft per inch interval is at least 16,000 denier or more. The sandbag of the set net according to claim 1. 3. The sandbag of the stationary net according to claim 1 or 2, wherein holes or slits are formed at appropriate positions of the stable supporting wings.