JPH0142457Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a winding winch for lifting nets in purse seine fishing boats.

Conventionally, nets for purse nets are lifted using a method in which the net is lifted using side rollers installed on the side of the vessel, and a method in which the net is lifted by rotating the rollers while the net is sandwiched between two rollers. Especially when the net was under heavy load, the net was wound into a winding winch and lifted out.

Since the winding winch completely winds up the net and lifts the net, there is no slippage of the net and it is possible to lift the net with a large load, making it very effective when there is a lot of fishing.

However, there is a limit to how much the net can entrain, so when the entrainment reaches its limit, the base of the net is tied to the hull with a rope, the entrainment winch is reversed, the net is removed, and the base tied with the rope is removed. After rewinding the net into the winding winch and untying the rope, the work of lifting the net is started using the winding winch. However, this temporary holding work with the rope places a large load on the net, so It is difficult and time consuming to hold and is extremely dangerous.

The object of the present invention is to provide a net-lifting winch that simplifies the net-lifting work using the above-mentioned haul-in winch and can contribute to safe work.

To explain an embodiment, FIG. 1 is a side view of the present invention, and FIG. 2 is a plan view.

A hoisting winch 3 driven by a winch hydraulic motor 2 is provided on a mounting frame 1, and a screw shaft 5 rotatable by a hydraulic motor 4 is mounted on the mounting frame 1 at the front part on the winding side of the hoisting winch 3. A clamping device 6 is provided. The screw shaft 5 is threaded in the opposite direction from the center, and as the screw shaft 5 rotates, two sliding bodies 8 having a pressing body 7 move along the slide shaft 9 from both ends to the center and from the center. It slides toward both ends, allowing the pressing body 7 to open and close.

To explain how to use the present invention, the hydraulic motor 4 is driven to open the pressing body 7, the net 10 is passed between them, and then entwined with the winding winch 3, and the winding winch 3 is driven by the winch hydraulic motor 2. to wind up the net 10. When the amount of retraction of the retraction winch 3 reaches the limit, the retraction winch 3 is stopped,
The pressing body 7 is closed and the net 10 is clamped. After that, reverse the winding winch 3 and clear the gap 11 at the front of the winch.
Drop the net 10 into the net 10, rewind the base of the dropped net 10 near the gripping part, and wind it into the winch 3.
The pressing body 7 is opened when it becomes able to hold the body, and is further rolled up.

By repeating the above operations, the net 10 with a large load is
to be netted.

FIG. 3 is a front view showing another embodiment.

Screw shaft 5 with threads in only one direction
are provided in the vertical direction, and the pressing body 7 is configured to be openable and closable in the vertical direction by rotation of the screw shaft 5 relative to the fixed pressing body 7'.

4 and 5 are examples of arrangement of the pressing bodies 7 for increasing the clamping force of the clamping device 6.

FIG. 4 shows a configuration in which several pressing bodies 7 are arranged in a straight line and can be held together in a state where they mesh with each other.

FIG. 5 shows a structure in which several pressing bodies 7 are arranged alternately in a staggered manner and can be held together with their teeth meshing with each other. Furthermore, even in the case of clamping between two pressing bodies 7, the clamping force can be increased by forming the contact surface of the pressing bodies 7 with the net 10 into a flat, wavy, or uneven shape. (Illustration omitted) Note that the hydraulic circuit in the present invention is omitted from illustration.
As mentioned above, the present invention is characterized by making it more convenient to temporarily hold the net of a winding winch for hoisting nets, which was previously done manually with ropes, etc., and contributing to improved efficiency and safety. be.

[Brief explanation of drawings]

Figure 1 is a side view of the present invention, Figure 2 is a plan view, Figure 3 is a front view showing another embodiment, Figures 4 and 5.
The figure is an arrangement diagram of the pressing bodies. 1 is the mounting frame, 2 is the hydraulic motor for the winch,
3 is a winding winch, 4 is a hydraulic motor, 5 is a screw shaft, 6 is a clamping device, 7 is a pressing body,
7' is a fixed pressing body, 8 is a sliding body, 9 is a slide shaft, 10 is a net, and 11 is a gap at the front of the winch.

Claims (1)

[Scope of Claim for Utility Model Registration] A winch for hauling nets that winds up a purse net with a winch and lifts the net using the traction force generated by the winch, which has a plurality of pressing bodies on the front of the winch. , and a clamping device equipped with a clamping device that can freely open and close the pressing body by hydraulic drive, and the clamping device is configured to clamp and temporarily hold the net that is being rolled into the winding winch. Retractable winch for nets.