JPH0428914Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Purpose of the invention) [Industrial application field] This invention relates to a shipping gate used in a fishing net installed in a reservoir, dam, etc.

[Conventional technology]

Net yards set up around reservoirs, dams, etc. have ship passage gates in the middle for passage of dust collectors and patrol boats. This shipping gate is normally closed and functions as a netting area to block out trash and driftwood, and when a ship is passing, it is opened to allow ships to pass.

Conventionally, this shipping gate has a U-shaped frame installed vertically in the middle of the fishing area, a gate body inserted into this frame so that it can move up and down, and the gate is normally closed with the door body positioned at the top. At the same time, the gate was opened by lowering the gate when the ship was passing through.

[Problems with conventional technology]

However, in the case of such conventional shipping gates, (1) the gate body moved up and down within the U-shaped frame;
The height of the character frame (length in the vertical direction) is the height of the door body plus the distance the door body moves.
The height of the frame has to be increased, and as a result,
It is difficult to install on the water surface and the manufacturing cost is high; and (2) because the door plate was lowered, driftwood got caught between the lower edge of the door plate and the frame, making it impossible to open. It had the disadvantage of being easy to use.

[Means for solving problems]

This invention was devised to solve the above-mentioned inconvenience, and its structure is that, at a shipping gate that is installed in the middle of the netting area and opens and closes when ships pass through, a frame is placed upright in the middle of the fishing area. A ship passage gate for a net yard is characterized in that a door plate member is fitted inside the frame body, and the door plate member is foldable in the vertical direction toward the lower end of the frame body.

[Effect of invention]

The passing gate for a fishing net according to this invention is a passing gate that is installed in the middle of the fishing yard and opens and closes when a ship passes through, and a frame is installed upright in the middle of the fishing yard, and a door is attached to this frame. Since the plate member is fitted inside and the door plate member can be folded vertically toward the lower end of the frame, the door plate member is normally extended to close the gate, and when the ship is passing, the gate is closed. The gate can be opened by folding the door plate member toward the lower end of the frame.

[Explanation of Examples]

Examples of this invention will be described below based on the drawings.

In FIG. 1, N is a net stretched over a reservoir (corresponding to the "net field" of the present invention), and G is a shipping gate installed in the middle of this net N.

This shipping gate G is based on Figures 2 to 12.
details.

In FIGS. 2 to 4, reference numeral 1 denotes a frame body, which is formed by welding H steel into a U-shape.
This frame body 1 is for internally fitting a door plate member 2 described later. Reference numeral 11 denotes a left support plate, which is welded to the upper left end of the frame 1. Further, 12 is a right support plate, which is welded to the upper right end of the frame 1.
These left side support plate 11 and right side support plate 12 support opening/closing mechanisms 21 and 22 of the door plate member 2, which will be described later, respectively. Reference numerals 13, 13, . . . designate connecting plates, which are protruded from the side surface of the frame 1. This connecting plate 13 hangs the net N. A platform 14 is welded to the upper surface of the connecting plate 13. This platform 14 is located on the left side of the left support plate 11, and is equipped with a winch 141, a rotation indicator light 142, and manual switches 143, 143. In addition, 131, 131, ... are the cross beams of the connecting plate 13, 1
32,132,... are these cross beams 131,131,...
It is a float suspended from. This float 13
2 floats the net N and the gate G on the water surface.

Next, reference numerals 15, 15 are rails, which are fixed to the inner surface of the frame 1 in the vertical direction. This rail 1
5 has a groove 151 (see FIG. 6), and this groove 15
1 faces inward. Furthermore, this rail 1
5, as shown in FIG. 12, an auxiliary rail 152 extending diagonally downward is connected to the lower end. The function of this auxiliary rail 152 will be described later.

Reference numeral 2 denotes a door plate member, in which a pair of door plates 21 and 22 are foldably connected by a hinge portion 23. This door plate member 2 is installed inside the frame 1.

The mounting structure of this door plate member 2 to the frame 1 is as follows:
This will be explained based on FIGS. 5 and 6.

In the figure, 24 is a bracket welded to the corner of the door plate 21, and 25 is a support welded to this bracket 24. Also, 26 is a rotation axis,
It penetrates through the support 25 via a bearing 27. Reference numeral 28 denotes a guide wheel, which is fixed to the tip of the rotating shaft 26. The guide wheel 28 moves up and down while rotating within the groove 151 of the rail 15.

Next, based on FIGS. 7 to 9, the door plates 21, 2
The hinge portion 23 of No. 2 will be explained.

In the figure, 291 and 292 are protrusions protruding from the door plate 21, and 293 is a support provided protruding from the door plate 22. It is fitted between this support 293 and the pair of protrusions 291 and 292. A bolt 294 passes through the pair of projections 291, 292 and the support 293, and is attached to the double nut 29.
It is screwed using the 5,295 method. Note that a bearing 296 is provided between the bolt 294 and the support 293.
exists, so that the support 293 can swing relative to the protrusions 291 and 292, as shown in FIG. 9, and in turn, the door plate 22 can swing relative to the door plate 21. . In addition, 296 and 296 are stoppers, which are provided in a protruding manner on the door plates 21 and 22, respectively. These stoppers 296, 296 are
When 1 and 22 are closed, they tend to be in a vertical position.

Returning again to Figures 2 to 4, 31 and 32
is a towing rope, one end of which is attached to the winch 141.
Fixed. These tow ropes 31,3
2, 31 is for lifting the left end of the door plate member 2, and 32 is for lifting the right end of the door plate member 2. These pulling ropes 31 and 32 are operated by the opening and closing mechanisms 21 and 22 of the door plate member 2. The opening/closing mechanisms 21 and 22 will be explained based on FIG. 10 and FIG. 11.

In FIGS. 10 and 11, 331 is a first pulley and 332 is a second pulley, which are installed on the left support plate 11 via a bracket (not shown). The first pulley 331 and the second pulley 332 are used to span the tow rope 31. The tip of this pulling rope 31 is fixed to the upper end of the door plate 31.
On the other hand, 341 is a third pulley, which is installed on the left side support plate 12. Further, 342 is a fourth pulley, 343 is a fifth pulley, and 344 is a sixth pulley, all of which are installed on the left support plate 22 via a bracket (not shown).
Further, in FIG. 2, 35 and 36 are auxiliary pulleys, which are installed at the lower corner of the frame 1.
37, 38, 39 are guide tubes, and the frame body 1
Welding is performed between the auxiliary pulley 35 and the fourth pulley 342, between the auxiliary pulley 35 and the auxiliary pulley 36, and between the auxiliary pulley 36 and the fifth pulley 343, respectively.
These guide tubes 37, 38, 39 are connected to the traction rope 32.
is for passing. Towing rope 32
After being wound around the third pulley 341, the frame body 1
After passing through the guide tube 37, it is wound around the auxiliary wheel 35, and then passed through the guide tube 38 and wound around the auxiliary wheel 36. Thereafter, after rising and passing through the guide pipe 39, the fourth pulley 34
2. It is stretched over the fifth pulley 343 and the sixth pulley 344, and its tip is fixed to the upper end of the door plate 21. Therefore, when the winch 141 rotates and loosens the tow ropes 31 and 32 (operated by a radio signal from the ship) when the gate G is closed (the state shown in FIG. 2), the door plate member 2 is moved under its own weight. Then, fold it up via the hinge parts 23, 23, . At this time, the auxiliary rail 152 of the rail 15
is directed obliquely downward, so the lower guide wheel 28 moves along this auxiliary rail 152, and as a result, the door plate member 2 is always bent in a certain direction (see the imaginary line in FIG. 12).

On the other hand, when closing the gate G, the winch 141 is rotated in the opposite direction and the tow ropes 31, 32 are closed.
If the door plate member 2 is pulled up, the door plate member 2 can be pulled up.

In addition, in FIGS. 2 to 4, reference numeral 4 denotes an opening pole, which is erected on the upper edge of the door plate 21.
This opening degree pole 4 indicates the open area of the gate G by the length exposed to the water surface. Further, 41 is an upper limit switch, and 42 is a lower limit switch, which are installed on the right side support plate 12 (they are also installed on the left side support plate 11). These limit switches 41 and 42 are connected to the stopper 4 of the pole 4.
3, 44, it is activated and stops the winch 141 from operating more than necessary.

[Effect of idea]

The passing gate for a fishing net according to this invention is a passing gate that is installed in the middle of the fishing yard and opens and closes when a ship passes through, and a frame is installed upright in the middle of the fishing yard, and a door is attached to this frame. Since the plate member is fitted inside and the door plate member can be folded vertically toward the lower end of the frame, the door plate member is normally extended to close the gate, and when the ship is passing, the gate is closed. The gate can be opened by folding the door plate member toward the lower end of the frame.

Therefore, in the fishing boat passage gate according to this invention, the height of the frame in the fishing boat passage gate is shorter than that of the conventional one, making it easier to install the frame on the water surface and making it easier to manufacture. Costs will be lower.

In addition, in the fishing gate of this invention, since the door plate member is folded toward the lower end of the frame, there is a gap between the lower edge of the door plate member and the frame when the gate is closed. It will not become impossible to open the door due to driftwood getting stuck in it.

[Brief explanation of the drawing]

The drawings show an embodiment of the fishing boat passage gate according to this invention, and Fig. 1 is a front view, Fig. 2 is an enlarged view of a portion in Fig. 1, and Fig. 3 is a view taken in the direction of the arrow in Fig. 2. Figure 4 is a view taken in the direction of the arrows in Figure 2, Figure 5 is an enlarged cross-sectional view of a portion in Figure 2, Figure 6 is a cross-sectional view taken along the - line in Figure 5, and Figure 7 is an enlarged view of a portion in Figure 2. A sectional view, FIG. 8 is a sectional view taken along the line - in FIG. 7, FIG. 9 is a view corresponding to FIG. 8 in a state where the door plate member is folded, FIG. 10 is an enlarged sectional view of a portion in FIG. 2, FIG. 11 is a view taken along the arrow in FIG. 10, and FIG. 12 is a sectional view taken along the - line in FIG. 2. N...net body (amiba), G...ship gate, 1...
...frame body.

Claims (1)

[Scope of Claim for Utility Model Registration] In a shipping gate that is installed in the middle of a fishing net and opens and closes when ships pass through, a frame is installed upright in the middle of the fishing net, and a door plate member is installed inside the frame. A ship passage gate for a net yard, characterized in that the door plate member is fitted and can be folded vertically toward the lower end of the frame.