JPH019404Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a side roller device for lifting nets at the stern of a boat.

Conventionally, this type of net hauling side roller device is installed along almost the entire length along the side of the purse seine vessel, but there is a gap between the net hauler installed at the rearmost part of the ship's side and the rearmost part of the net hauling side roller device. Since a flat space is required for casting the net, it is necessary to shorten the net-lifting side roller device by that space. However, this flat space near the net hauler required a particularly complicated fish-clamping operation when hauling nets, and this required a lot of manpower and labor. In order to solve this problem, various auxiliary net side roller devices have been devised and tested, but all of them allow the floorboard of the purse seine vessel to be removed and stored inside the vessel when not in use (when casting nets). When in use (when hoisting nets), the equipment was taken out from inside the ship and set on the side of the ship, so it took a lot of time and effort to remove and remove the floorboards and put in and take out the equipment, making it extremely troublesome and difficult to use in practice. The current situation is that this has not been done.

Therefore, this invention solves all such problems,
A stern net-lifting side roller device that allows easy and quick loading and unloading of the auxiliary net-lifting side roller device, as well as labor-saving and efficient net-lifting work for complex fish-clamping work near the net hauler. The purpose is to provide a structure in which both ends are rotatably supported by bearing stands, and a movable rotating cylinder is extendable and retractable within a fixed rotating cylinder that has a built-in hydraulic motor. The free end side of the movable rotating cylinder is rotatably supported by an elbow tubular bearing stand movable by wheels, and the bearing stand and the elbow tubular bearing stand are mutually extendable and retractable. A hydraulic cylinder is provided between the bearing stand and the elbow tubular bearing stand, which are connected by multiple guide bars that engage with each other, and extend and retract the movable rotary cylinder. A side roller device for lifting nets for a stern is characterized in that it is equipped with an engaging spline-shaped rotation transmission tube.

Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 4 show an embodiment of the present invention, in which 1 is a fixed rotating cylinder, 2 is a movable rotating cylinder, 3 and 3' are bearing pedestals, 4 is an elbow tubular bearing pedestal, Reference numeral 5 denotes a hydraulic motor, and the fixed rotating cylinder 1 is rotatably supported at both ends by left and right bearings 3 and 3', and the movable rotating cylinder 2 is extendable and retractable into the fixed rotating cylinder 1. At the same time, the free end side of the movable rotary cylinder 2 is rotatably supported by the elbow tubular bearing stand 4.
The elbow tubular bearing stand 4 is provided with moving wheels 6 on its bottom surface so that it can move as the movable rotary cylinder 2 expands and contracts. The hydraulic motor 5 has its main body 5' side attached to the fixed side rotating cylinder 1 and its rotating shaft 5'' side attached to the left bearing stand 3. The left end is rotatably supported on the bearing stand 3, and
The right end is rotatably supported with respect to a bearing pedestal 3' via a metal 7', and the free end side of the movable rotary cylinder 2 is also rotatably supported with respect to an elbow tubular bearing pedestal 4 via a metal 7'. It is supported in a free manner.
Further, O-rings 8, 8' are attached to the outer circumferential surface of the base end of the movable rotary cylinder 2 and the inner circumferential surface of the bearing of the bearing stand 3', respectively.

In the figure, reference numerals 9 and 9' are spline-shaped rotation transmission cylinders that telescopically engage with each other. In this embodiment, the large-diameter rotation transmission cylinder 9', which has a rectangular cylinder shape, is centered within the movable rotation cylinder 2. 10, 10'. are two guide bars that telescopically engage with each other, and in this embodiment, the large diameter guide bars 10, 10 are connected to both left and right bearing stands 3,
3', and the proximal ends of the small diameter guide bars 10', 10' (top right end in FIG. 2) are attached to the elbow tubular bearing base 4 via the mounting base 11.
It is fixedly attached to. 12 is a hydraulic cylinder for expanding and contracting the movable rotary cylinder 2;
The cylinder 12' side is fixedly attached to the bearing stand 3', and the piston rod 12''
The free end side of is attached to the elbow tubular bearing stand 4.

Reference numerals 13 and 13' in the figure indicate striped rubber layers baked on the outer peripheral surfaces of the fixed rotary cylinder 1 and the movable rotary cylinder 2.

Since this embodiment has the above-mentioned configuration, both bearing stands 3 and 3' can be attached to the ship's side while leaving a flat space between the net hauler 14 and the net hauler 14, as shown in FIG. When carrying out net lifting work, the movable rotary cylinder 2 is pushed out by operating the hydraulic cylinder 12', and net lifting and fishing operations in a flat space can be carried out extremely easily using the movable rotary cylinder 2. At the same time, when moving to net casting work, use the hydraulic cylinder 1.
By pushing the movable rotary cylinder 2 into the fixed rotary cylinder 1 through the operation 2', a flat space is easily formed again, and the net casting operation can be performed.

As explained in detail above, according to the present invention, the operation of putting in and taking out the movable rotary cylinder can be performed easily and quickly by the telescopic structure for the fixed rotary cylinder and the automation of the telescopic work using the hydraulic cylinder. It is possible to save labor and improve the efficiency of the complicated fish tightening work near the net hauler when fishing, and since the length of the movable rotary tube can be changed arbitrarily, the work environment can be adapted to suit the work situation. This has the effect of making settings easier.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway plan view showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional front view taken along the line shown in Fig. 1;
Figure 3 is a vertical sectional side view along the line shown in Figure 2;
The figure is an explanatory diagram showing the state of use. In the figure, 1...Fixed rotating cylinder, 2...Movable rotating cylinder, 3, 3'...Bearing stand, 4...Elbow tubular pedestal, 5...Hydraulic motor, 6...Wheel, 9,9 ′
...Rotation transmission tube, 10,10'...Guide bar,
12... Hydraulic cylinder.

Claims (1)

[Scope of utility model registration request] The movable rotary cylinder is telescopically inserted into the fixed rotary cylinder, which is rotatably supported by bearing stands at both ends and has a built-in hydraulic motor, and the free end of the movable rotary cylinder can be moved by wheels. The elbow tubular bearing stand is supported in a rotatable state, and the bearing stand and the elbow tubular bearing stand are connected by a plurality of guide bars that engage each other in a telescopic state, and the movable side rotates. A hydraulic cylinder for extending and contracting the cylinder is provided between the bearing stand and the elbow tubular bearing stand, and a spline-shaped rotation transmission cylinder that engages with each other in a telescopic manner is attached to the center of both rotating cylinders. Stern lifting net side roller device.