JPH0567253U - Stationary net - Google Patents

Abstract

(57) [Summary] [Purpose] No special mechanism for spreading the bottom net is required. When the stationary net is installed, the bottom net is automatically stretched, and there is no slack in the bottom net and no adverse effects due to the slack. , Increase fish netting. [Structure] Ceiling net 15a and bottom net 15 facing each other
In a stationary net having a rectangular net having a rectangular vertical cross section by b and two side nets 15c connecting them, the horizontal width of the bottom net 15b is the ceiling net 15
It is formed to be narrower than the horizontal width of a.
The weights 18 are respectively provided at the connecting portions between the 5b and the side nets 15c.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a fixed net.

[0002]

[Prior Art]

 Generally, there are various types of stationary nets such as floating type, middle layer type and bottom layer type.

FIG. 3 shows a general example of a stationary network of a middle layer type.

In the figure, reference numeral 1 is a fence, the tip of which reaches the middle of the play 2 to form a mesh inlet 3. The inner part of the play 2 is tapered, and a root reservoir 4 and a middle reservoir 5 are provided in this order, and a substantially rectangular reservoir 6 is connected to the tip of the middle reservoir 5. At the connecting portion between the root reservoir 4 and the middle reservoir 5 and at the connecting portion between the middle reservoir 5 and the reservoir 6, a tapered middle reservoir 7 and a reservoir 8 respectively have a tip opening in the middle reservoir 5. It is fixed so as to open in the reservoir 6.

In this stationary net, the root reservoir 4, the middle reservoir 5, the reservoir 6, the middle reservoir 7 and the reservoir 8 face each other, as shown in the vertical cross section of the middle reservoir 7 in FIG. The Amami net 7a and the bottom net 7b and the two side nets 7c, 7c connecting them form a rectangular net having a rectangular cross section in the vertical direction.

[0006]

[Problems to be solved by the device]

 However, since the rectangular net in the conventional fixed net has a rectangular cross section in the vertical direction, the bottom net 7b is slackened by its own weight as shown by the broken lines in FIGS. There was the inconvenience that the shape was deformed and the fish nets became worse. Moreover, since the projected area for the tidal current that flows in a substantially horizontal direction also increases due to the slack in the net, there is a risk that the stationary net may be deformed by the tidal current, or if it is drastically washed away.

Therefore, conventionally, as shown in FIG. 6, the bottom end of a bottom rope 9 having a float 10 fixed to the tip thereof is fixed to a bottom net 7b, and the bottom rope 9 is attached to the bottom of the sea bottom. The bottom net 7b is stretched by winding the bottom net 7b from both left and right sides by winding it around a pulley 12 which is installed by a ring 11 or an anchor (not shown) in the part. In this case, it was necessary to install the bottom rope 9 and the pulley 12, and the structure was complicated, and the installation work was difficult, required skill, and the cost was extremely high. ..

The present invention has been made in view of these points, and does not require a special mechanism for stretching the bottom net, and when the stationary net is installed, the bottom net is automatically stretched and the bottom net is relaxed. The purpose of the present invention is to provide a set net which can increase the number of fish nets without any adverse effects due to the looseness.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, the stationary net of the present invention is a stationary net having a rectangular net in which a vertical cross section is rectangular by a ceiling net and a bottom net facing each other and two side nets connecting them. The horizontal width of the bottom net is narrower than the horizontal width of the ceiling net, and weights are arranged at the connecting portions between the bottom net and each side net. To do.

[0010]

[Action]

 According to the present invention, when the stationary net is installed in water, the weights fixed to the connecting parts with the side nets at both ends of the bottom net are self-weighted in the direction in which they are separated from each other with the upper end of each side net as a fulcrum. The bottom net is automatically stretched to prevent the rectangular net from sagging in order to move.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 and FIG. 2 show an embodiment of the present invention, which is applied to a middle reservoir 15 which is a kind of rectangular net.

The middle reservoir 15 in this embodiment has a rectangular cross section in the vertical direction by a ceiling net 15a and a bottom net 15b facing each other and two side nets 15c, 15c connecting these nets 15a and 15c. The width of the net 15b in the horizontal direction is smaller than the width of the ceiling net 15a in the horizontal direction, and weights 18 are provided at the connecting portions between the bottom net 15b and the side nets 15c.

Next, the operation of this embodiment will be described.

When the stationary net of this embodiment is installed in water, the weights 18 fixed to the connecting portions with the side nets 15c at both ends of the bottom net 15b are the upper ends of the side nets 15c. The bottom net 15b is automatically pulled in the left-right direction and stretched in order to move by its own weight in the directions in which they are separated from each other with the connection point with the ceiling net 15a as a fulcrum. As a result, the bottom net 15b of the middle reservoir 15, which is one of the rectangular nets, is securely prevented from being loosened, and the desired rectangular shape is maintained.

Since the rectangular net is not deformed as described above, the net net of fish is increased and the catch amount is also increased.

Further, unlike the conventional example, it does not require a special device such as the bottom rope 9 and the pulley 12, the structure is simple, the cost is low, and the special net for stretching the bottom net 15b is used. This eliminates the need for work, simplifies the installation work, and greatly reduces the installation time.

The weight 18 may have any shape and structure as long as it has a weight sufficient to stretch the bottom net 15b.

It should be noted that the above embodiment is applied to the middle layer type stationary net, but it can be similarly applied to other floating type, bottom layer type stationary net and the like.

Further, the present invention is not limited to the above-mentioned embodiment, but can be modified as necessary.

[0021]

[Effect of the device]

 Since the set net of the present invention is constructed and operates in this manner, no special mechanism for expanding the bottom net is required.When the set net is installed, the bottom net is automatically expanded and the bottom net There is no slack, there is no adverse effect due to the slack, and it is possible to increase the number of fish nets.

[Brief description of drawings]

FIG. 1 is a perspective view of a rectangular net portion of one embodiment of a stationary net of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a perspective view showing an example of a general stationary net.

FIG. 4 is a side view of a rectangular mesh portion.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a cross-sectional view showing a conventional bottom net spreading means.

[Explanation of symbols]

 15 Middle Reservoir (Rectangular Net) 15a Ceiling Net 15b Bottom Net 15c Side Net 18 Weight

Claims (1)

[Scope of utility model registration request] 1. A stationary net having a rectangular net in which a vertical cross section is rectangular by a ceiling net and a bottom net facing each other and two side nets connecting these nets, and a horizontal width of the bottom net. Is formed to be narrower than the width of the ceiling net in the horizontal direction, and weights are respectively provided at the connecting portions of the bottom net and the side nets.