JPH0345570Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a device for pulling up a net basket containing cultured shellfish such as pearl oysters.

(Prior Art) As shown in FIG. 7, in the cultivation of pearl oysters, suspension ropes 71 are hung at approximately equal intervals from a main rope 7 floated on the sea surface by a float 70, and net baskets 7 containing pearl oysters 73 are placed.
2 is suspended in the sea by a hanging rope 71.

The net basket 72 has a planar rectangular frame with double nets, and pearl oysters 73 are housed between the nets.

To pull up the pearl oyster, the main rope 7 is pulled up one after another by the main rope winding device 6 installed on the boat 8.

The sling 71 extending from the main rope 7 is guided to the side of the main rope hoisting device 6 by crossing the sling dodging guide rod 15 provided on the main rope hoisting device 6, and the worker 9 waiting on the gunwale 81 is guided to the side of the main rope hoisting device 6. Gather the hanging rope 71 and make the net basket 72.
They raise it on their own.

(Problems to be solved by the invention) As mentioned above, the main rope 7 can be hoisted up by the main rope hoisting device 6, but the net cage that has been pulled up near the sea surface by the hoisting of the main rope can be hoisted up by the boat 8. The work of housing them was completely dependent on manual labor, forcing workers to do hard labor.

Therefore, the applicant devised a rope lifting device 1 shown in FIG. 6 and attempted to pull up ropes and net baskets using the device.

The above-mentioned hanging rope lifting device has a fitting part 30 into which the hanging rope 71 is fitted in the center of a rotating drum 20 having a size on which the net basket 72 is placed, and while rotating the drum in the pulling direction, the hanging rope The operator pulls up the hanging cable while the cable is fitted into the fitting part 30.

If the operator does not pull the hanging rope, the guide body simply rotates idly and the hanging rope 71 cannot be pulled up.

However, when the worker pulls the hanging rope 71,
Due to the pulling force and the weight of the net basket 72, the hanging rope 71 is strongly pressed against the bottom side of the insertion part 30 of the drum 20.

As a result, the frictional force between the guide body 3 and the suspension rope 71 increases, and the suspension rope 71 is in a semi-sliding state with respect to the guide body 3.
1 was pulled up, and the hanging rope could be pulled up much more easily and with less effort than in the conventional case where the operator relied solely on his own strength to pull up the hanging rope.

In addition, the frictional force between the cable and the guide body 3 increases or decreases depending on the tension of the cable by the worker, so that there is an advantage that the speed at which the hanging cable is pulled up can be adjusted.

(Problem to be solved by the invention) In the above device, in order to increase the pulling speed of the hanging rope 71, it is necessary to increase the rotational speed of the drum 2, taking into account slippage between the rope insertion part 30 and the hanging rope 71. .

However, when the rotational speed of the drum 2 is increased, when the net basket 72 is placed on the drum 2, the drum 2 rotates too fast and the net basket 72 is thrown overboard with force, which is extremely dangerous for the worker. .

In order to pull up the net cage 72 without danger to workers, it is possible to rotate the drum 2 at a low speed, but this not only slows down the rope pulling speed and reduces work efficiency, but also causes the main rope 7 Unable to follow the winding speed.

The present invention discloses a device that can smoothly and efficiently pull up both slings and net cages without danger to workers.

(Means for Solving the Problems) In order to achieve the above object, the cultured shellfish pulling device 1 of the present invention is provided with a guide body 3 on a rotating support shaft 13, and a net cage 72 containing cultured shellfishes in the guide body. A rope insertion part 30 into which a suspension rope 71 for hanging the cable is fitted is formed around the outer periphery of the guide body, and the rotary support shaft 13 has drums 2 and 2 on both sides of the guide body, which can freely rotate independently of the rotation of the guide body. A drum rotation drive device 5 is connected to the drum 2, and a guide rotation drive device 4 is connected to the guide body 3, which rotates the guide body at a higher speed than the drum.

(Function) With the hanging rope 71 fitted into the insertion part 30 of the guide body 3, the operator pulls the hanging rope 71 together. Due to this pulling force and the weight of the net basket 72, the hanging rope is tensed and strongly pressed against the bottom side of the insertion part 30 of the guide body 3.

As a result, the frictional force between the guide body 3 and the hanging rope 71 increases, and the hanging rope 71 is pulled up with respect to the insertion part 30 in a semi-sliding state.

The cable can be pulled up much more easily and with less effort than the conventional method of pulling up the cable solely by relying on the worker's own strength.

The frictional force between the hanging rope and the guide body 3 increases or decreases depending on the tension of the hanging rope by the worker, and the speed at which the rope is pulled up can be adjusted.

At the end of pulling up the hanging rope, the net cage 72 tied to the tip of the rope is placed on the drum 2, and as the drum 2 rotates, it is pulled up onto the boat.

(Special effects of the present invention) The drum 2 is rotated at a low speed so as to slowly pull up the net basket 72 without danger, and the guide body 3 is rotated at a high speed in anticipation of slippage with the hanging rope 71. Therefore, until the net basket 72 reaches the drum 2, the hanging rope 7 is pulled while adjusting the pulling force of the hanging rope 71 as described above.
1 can be raised at a relatively fast speed.

As the suspension rope 71 is pulled up in a semi-sliding state relative to the guide body 30, objects such as oysters, barnacles, and seaweed attached to the suspension rope 71 are scraped off by friction with the guide body 30, and the hanging rope 71 is pulled up in a semi-sliding state. By pulling up the rope, deposits on the rope can be removed at the same time.

When the net basket 72 is placed on the drum 2, the net basket 72 is placed on the drum 2.
If the hanging rope 71 is pulled to such an extent that the net cage 72 will not fall off the drum 2, it will follow the rotation of the drum 2.
There is no danger to workers if the vessel is lifted aboard the boat.

(Embodiment) FIG. 1 shows a state in which the main rope hoisting device 6 and the rope hoisting device 1 are installed on the boat's side 81.

The main rope hoisting device 6 is a device previously proposed by the applicant (Utility Model Application No. 154394/1983), as shown in Fig. 5.
A disc 6 is mounted on the rotating shaft 62 substantially perpendicular to the gunwale 81.
0 and 60 are provided protrudingly, and a plurality of blade plates 61 and 61 are provided protrudingly in the radial direction in alternating contact with the opposing surfaces of the disc to form a winding guide body 66, and the rotating shaft 62 is connected to the rotational drive device 40. It's connected.

Each blade plate 61 is formed in a 1/4 arc or triangular shape, and a substantially V-shaped fitting part 63 into which the main rope 7 is fitted is formed between the blade plates 61, 61 on both sides.

A clamp lever 64 is disposed between the vanes 61 and 61 on the rotating shaft 62 so as to be swingable in a plane that includes the axis of the rotating shaft 62, and the lever is attached to the fixed positive cam 6.
5, and when the main rope 7 is fitted into the insertion part 63, the tip of the lever 64 presses the main rope 7 to the bottom side of the insertion part 63, thereby preventing the slip between the main rope 7 and the insertion part 63. To prevent.

A rope hoisting device 1 is arranged close to and downstream of the hoisting device 6.

The rope hoisting device 1 has a rotary support shaft 13 disposed on a base 11 along a boat side 81, and a pair of drums 2 are disposed on the support shaft 13 so as to be freely rotatable irrespective of the rotation of the shaft.

A non-slip rubber plate 25 is adhered to the entire outer peripheral surface of the drum 2.

The facing surface of each drum 2 is recessed, and the drum 2
In between, the guide body 3 is disposed with a part thereof entering the recessed portion 21.

The guide body 3 is composed of a pair of rotary blade bodies 33, 33a, and both rotary blade bodies are constructed by protruding blade plates 32 at equal intervals from the outer periphery of a boss 31 fitted on the support shaft 13. The blade plate 32 of the blade body 33 corresponds to the middle between the mating blade plates, and at least one of the rotor blade bodies 3
3a is capable of moving toward and away from the mating rotary blade body 33 in the axial direction, and is secured by a clamp bolt 35.
It is fixed to the support shaft 13.

Each of the wing bodies 32, 32 is formed into a substantially 1/4 arc or triangular shape, and a substantially V-shaped suspension cable insertion portion 30 is formed between the wing bodies 33, 33.

As shown in FIG. 3, a rotor body 3 whose position is adjustable
A slit 37 is provided on the tip surface of the wing body 3a, through which the vane of the mating rotor body 33 can enter.
The wing body 32 of 33a can enter between the blades of the mating wing body, and the width of the cable insertion part 30 can be expanded or contracted by sliding the rotor body 33a.

Rotary drive devices 4 and 5 are connected to the guide body 3 and the drum 2, respectively.

The rotation drive device 4 of the guide body 3 has a rotation drive shaft 41 arranged parallel to the rotation support shaft 13 of the guide body 3,
A motor 49 is connected to the shaft, and the shaft 41 and the support shaft 13 are connected by chain sprockets 43, 45 and a chain 47.

A rotation drive device 5 for the drum 2 connects a boss 23 protruding from the outer end of the drum 2 and the rotation drive shaft 41 to chain sprockets 51, 53 and a chain 55.
It is constructed by connecting.

The rotation drive device 4 of the guide body 3 and the drum 2 rotation drive device 5 use a common motor 49,
The rotation speed ratio of the guide body 3 and the drum 2 is approximately 5:1, and in the example, the guide body 3 is 300 rpm, and the drum 2 is 300 rpm.
It is 60rpm.

The main rope hoisting device 6 is provided with a rope dodging guide rod 15 that guides the suspension rope 71 hanging down from the main rope 7 by sliding it over the drum 2 of the rope hoisting device 1.

However, when the main rope 7 is hoisted onto the boat by the main rope hoisting device 6, the sling 7 suspended from the main rope 7
1 is guided onto the drum 2 of the rope hoisting device 1 by slipping over the dodging guide rod 15 of the sling 71 of the main rope hoisting device 6.

The operator manually pulls the hanging rope 71 in a state where the hanging rope 71 is fitted into the insertion part 30 of the guide body 3.

As described above, when the operator pulls up the hanging rope 71, the pulling force and the weight of the net basket tension the hanging rope, and the hanging rope 71 is pressed against the bottom of the insertion part 30. The cable fitting part 30 of the guide body 3 is formed in a V-shape, and the cable fitting part 30 has a plurality of blade plates 32.
The frictional force between the wing plates 32 and the suspension rope 71 increases, and the suspension rope 71 is pulled up as the guide body 3 rotates.

When the operator 9 weakens the pulling force of the hanging rope 71, the degree of slip between the hanging rope 71 and the guide body 3 increases, and the pulling speed of the hanging rope 71 becomes slower.

When the operator increases the pulling force, the slip between the hanging rope 71 and the guide body 3 decreases, and the pulling speed of the hanging rope 71 increases.

Although oysters, barnacles, seaweed, etc. are attached to the hanging rope 71, by adjusting the manual reeling force of the hanging rope 71, and by adjusting the slip that occurs between the hanging rope 71 and the guide body 3, The attachments attached to the suspension rope 71 can be scraped off by the wing plate 32.

At the end of the lifting of the hanging rope 71, the net cage 72 tied to the tip of the rope is placed on the drum 2, and is pulled onto the boat as the drum 2 rotates.

The drum 2 can be rotated at a low speed so as to slowly pull up the net cage 72 without causing any danger, and the guide body 3 can be rotated at high speed in anticipation of slippage with the hanging rope 71. Until it reaches the drum 2, the hanging rope 71 can be pulled up at a relatively high speed while adjusting the pulling force on the hanging rope 71, as described above.

When the net basket 72 is placed on the drum 2, the net basket 72 is placed on the drum 2.
If the hanging rope 71 is pulled to such an extent that the net cage 72 will not fall off the drum 2, it will follow the rotation of the drum 2.
There is no danger to workers if the vessel is lifted aboard the boat.

In FIG. 4, a main rope guide roller 83 is installed on the upstream side of the rope hoisting device 1, and a main rope hoisting device 6 is installed near the drum 2 on the downstream side of the rope hoisting device 1, perpendicular to the drum. This shows another example.

FIG. 8 shows another embodiment of the guide body 3,
Approximately hemispherical rotating bodies 35, 35 are disposed on a rotating support shaft 13 between the drums 2, 2, with their spherical surfaces facing each other so as to be rotatable together with the shaft.

A plurality of grooves 36 are provided in the radial direction on the spherical surfaces of the rotating bodies 35, 35, and the grooves 36 enhance the effect of removing deposits from the hanging rope.

The present invention is not limited to the configuration of the above-described embodiments, and various modifications can be made within the scope of the claims for utility model registration.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the arrangement of the rope lifting device of the present invention, FIG. 2 is a sectional view of the rope lifting device,
Figure 3 is a slope view of the guide body of the rope hoisting device;
FIG. 5 is a front view of the main rope hoisting device; FIG. 6 is a perspective view of the rope hoisting device used by the applicant prior to the invention;
FIG. 7 is an explanatory diagram of a conventional example, and FIG. 8 is another embodiment of the guide body. 1... Suspension rope lifting device, 13... Rotation support shaft,
2... Drum, 3... Guide body, 30... Fitting part,
4, 5...Rotary drive device, 7...Main rope, 71...
Hanging rope, 72... Net basket.

Claims (1)

[Scope of utility model registration request] A suspension rope guide body 3 is disposed on the rotation support shaft 13, and a rope insertion portion 30 into which a suspension rope 71 for hanging a net cage 72 containing cultured shellfish is fitted is formed around the outer periphery of the guide body. On the rotation support shaft 13, drums 2, 2 are disposed on both sides of the guide body so as to freely rotate independently of the rotation of the guide body, and a drum rotation drive device 5 is connected to the drum 2. 1 is a cultured shellfish pulling device connected to a guide rotation drive device 4 that rotates the guide at a higher speed than the drum.