JPH0232060Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> This invention relates to a trawl device for bottom trawl nets in which the main body of the trawl always maintains a vertical state during operation.

<Conventional technology> A hand-sewing device for bottom trawl netting is a device in which a net is installed in front of the rough net (a net that is continuous with the sleeve net and located in front of the sleeve net) of the bottom trawl net.
This rough net is placed with the expectation that it will always maintain a vertical position.

However, the conventional hand seine device for bottom seine is formed into a rod shape with a length that is approximately the same as the height of the rough seine.
This stick-shaped hand wood was exposed to the outside.

<Problem that the invention aims to solve> However, in this type of fishing method using a bottom trawler, as the so-called trawling method is also known, the net is trawled in contact with the seabed, and this seabed has a truly irregular uneven surface. As a result, each time the hand net comes into contact with the rough seabed, it falls over, causing the rough hand net or sleeve net to lie sideways in a twisted manner, and as a result, the problem is that the fish school guiding effect that should be achieved cannot be achieved. It had the following. Therefore, the inventor of the present invention first installed a weight at the lower end of the rod-shaped handwood body, and set the center of gravity of the handwood body at the bottom, so that even if it were to fall, it would immediately stand up. They developed a trawler for use in bottom trawl nets, but this had the problem that even though it could immediately get back upright after falling, it was unavoidable that it would fall temporarily.

<Means for solving the problem> Therefore, in this invention, out of the hand tree body that has three connecting branches, two connecting branches are positioned at the rear in the direction of travel, and these two rear The connecting branches of the tree are covered with a hemispherical dome-shaped cover to completely prevent the tree from coming into direct contact with the seabed, and to prevent it from tipping over.

<Example> Next, an embodiment of the bottom trawl net device according to the present invention will be described based on the drawings. 1 is the rough net of the trawl net 2, and 3 is the main body of the trawl net disposed in front of it. be. This hand tree main body 3 is one in which three connecting branches 4 are integrally formed. It is located towards the rear.
Reference numeral 5 denotes a hemispherical dome-shaped cover disposed to cover the two connecting branches 4 located at the rear.

<Function> Thus, the two rear connecting branches 4 of the hand tree main body 3 are connected to the bottom trawl net 1 side, and the other connecting branch 4 is connected to face the front ship side for trawl.
As a result, the hemispherical dome-shaped cover 5 comes into contact with the seabed during seine fishing, but since the hand tree body 3 is housed inside the hemispherical dome-shaped cover 5, it does not come into contact with the seabed. Therefore, the wooden body 3 will not receive any external impact.

<Effects of the invention> As mentioned above, according to the bottom trawl fishing device according to this invention, a hemispherical dome-shaped cover is provided on the outside of the fishing rod body, so that the fishing rod body is not directly exposed to external impact. Therefore, it has the effect of always maintaining a vertical state.

[Brief explanation of the drawing]

The drawings show an embodiment of the hand-sewing device for bottom trawl according to this invention. Fig. 1 is a front view of the hand-sewing device, Fig. 2 is a sectional view, and Fig. 3 shows the hand-sewing device arranged on the bottom trawl net. FIG. 1... bottom trawl net, 2... rough net, 3... hand tree body, 4... connecting branches, 5... hemispherical dome-shaped cover.

Claims (1)

[Scope of utility model registration request] The main body of the hand tree, which has three connecting branches, is positioned so that two of the connecting branches are at the rear in the direction of travel, and these two rear connecting branches are covered with a hemispherical dome-shaped cover. Hand fishing device for bottom trawling.