JPH0543853U - Rotating drum of aquaculture basket lifting device - Google Patents

Abstract

(57) [Summary] [Purpose] Prevents the suspension of ropes, gloves of workers, etc.
Further, the present invention provides a rotary drum for a cage raising device made of metal, resin, or the like, which can be pulled up with an appropriate frictional force without damaging the cage. [Structure] The rotary drum 10 of the aquaculture cage lifting device is made of steel, has a cylindrical shape, and has a large number of recesses 1 on its peripheral surface.
1 is provided. Due to the concave portion 11, an appropriate frictional force is generated between the raised net basket 55 and the rotary drum 10, and the net basket 55 can be pulled up without damaging the net drum 55 and while preventing the idle rotation of the rotary drum 10. Moreover, since it is the concave portion 11, the gloves of an operator are not caught or caught.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rotating drum of an aquaculture cage lifting device, and more particularly, to a device for lifting a hanging rope equipped with a net cage containing aquaculture shells and a float into a ship, which prevents the hanging rope from being caught and prevents idling. The present invention relates to a rotary drum of an aquaculture cage lifting device having an appropriate friction surface capable of lifting the net cage while preventing it.

[0002]

[Prior Art]

 The cultivation of pearl oysters will be described with reference to FIG. 5. Hanging ropes 53 are hung from the main ropes 52 floated on the sea surface by the floats 51 at substantially equal intervals, and nets 55 containing the pearl oysters 54 are suspended by the ropes 53. Suspend in the sea. The nets 55 are double-netted on a flat rectangular frame to accommodate the pearl oysters between the nets, but the nets are vinyl except for pulling the pearl oysters 54 in and out. Tighten with a string of In addition, the hanging rope 53 is a hanging rope 53a that is locked one by one on both sides of the upper frame of the net basket 55, and one hanging rope 53b that is hung from the main rope 52 for connecting with each other above them. The hanging rope 53 forms a substantially triangular shape with the upper frame body above the net basket 55.

In order to pull up the pearl oysters 54, the main rope hoisting device 58 provided in the boat 57 pulls up the main rope 52 in order, and when the net basket 55 approaches the boat 57, the hanging rope 53 extending from the main rope 52. Is guided to the side of the main rope hoisting device 58 by a suspension rope dodging guide rod 59, and a worker 60 waiting on the boat side pulls the suspension rope 53 by the hoisting and hoisting device 61. , Raise the basket 55.

[0004] For example, Japanese Utility Model Publication No. 3-45570 discloses a device for pulling up aquaculture cages as a typical device for pulling up a hanging rope. This aquaculture cage pulling device 61 is provided with a hanging rope guide body 63 and a rotary drum 64 which holds the hanging rope guide body 63 on a rotary support shaft 62 which is rotationally driven by a driving means (not shown) such as a motor. When the hanging rope 53 is fitted into the hanging rope insertion portion 62a formed by the body 63 by the worker 60, the hanging rope 53 is fitted into the hanging rope insertion portion 63a by the weight of the net basket 55, thereby obtaining sufficient friction. , Raise the net basket 55. Then, the net 55 is run on the rotary drum 64 by the hanging rope 53 formed in a substantially triangular shape, and is pulled up into the boat 57. The hanging rope pulling-up device 61 is provided with the hanging rope winding-in prevention member 13 in the hanging rope inserting portion 63a so as not to be fitted too much in the hanging rope 53, so as to prevent the hanging rope from being caught. The stop member 13 has a triangular protrusion 13b that extends without contacting the suspension line insertion portion 63a of the suspension line guide body 63, and an L-shaped vertical section in which the protrusion 13b protrudes from substantially the center. It is composed of a plate 13a, and prevents the protrusion 13b from being deeply fitted into the sling insertion portion 63a (see FIG. 4).

On the outer peripheral surface of the rotary drum 64, an elastic body such as rubber processed in the shape of a grid is adhered, whereby a frictional force with the net basket 55 is obtained and the net basket 55 is pulled up.

However, when the net basket 55 is pulled up, the elastic body of the rotary drum 64 is scraped by long-term use due to shellfish, barnacles, etc. attached to the float 51 passing through while contacting the outer peripheral surface of the rotary drum 64. However, the desired frictional force cannot be obtained, and the elastic body must be replaced frequently.

Further, the applicant used a rotary drum 40 (see FIG. 4) in which a long groove-shaped rubber plate is attached to the peripheral surface. The rotary drum 40 is provided with a rubber ridge 41 on the outer peripheral surface along the longitudinal direction thereof. In this case, the frictional force obtained from the ridge 41 is large, but since the ridge 41 is a ridge, during rotation, peaks and valleys, that is, intervals appear alternately between the hanging rope entanglement prevention member 13 and the rotary drum 40, and often There was a problem that the hanging rope 53 was caught in this space, the equipment stopped, and the operator's fingers were injured. In addition, there is a problem that the aquaculture cage is often damaged due to the large frictional force.

[0008]

[Problems to be solved by the device]

 Therefore, the present invention has been made in order to solve the above-mentioned conventional drawbacks and the above-mentioned problems, and an object of the present invention is to suspend a culture cage containing aquaculture shells and a suspension rope attached to a float into a ship. It is intended to provide a rotating drum for a cage raising device made of metal or resin, which can prevent ropes and workers' gloves from being caught and can be pulled up by an appropriate frictional force without damaging the cage. ..

In the present invention, in order to pull up the aquaculture basket, an elastic body made of a material such as rubber is preferable for the rotating drum surface in order to obtain a large frictional force, but it is worn out significantly and must be replaced frequently. On the other hand, if metal or resin is used as a material having excellent wear resistance, there is a drawback that a desired frictional force cannot be obtained. ..

[0010]

[Means for Solving the Problems]

 The present invention has been made in view of the above-mentioned object, and its gist is a rotary drum which is arranged on a rotary support shaft of a culture cage pulling device and pulls up a culture cage containing aquaculture shells. The rotating drum of the aquaculture cage lifting device is characterized in that it is made of resin or metal, and a large number of recesses are formed on its peripheral surface.

[0011]

[Action]

 The rotary drum of the aquaculture cage lifting device of the present invention is made of metal, resin, or the like, and has a large number of recesses on its outer peripheral surface, which provides a frictional force for lifting the aquaculture cage containing the aquaculture shells. However, this recess does not pinch the slings or the gloves of the worker, and pulls up the aquaculture cage without wear as compared with the conventional rotating drum made of an elastic material.

[0012]

【Example】

 Hereinafter, an embodiment of a rotating drum of the aquaculture cage lifting device according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a partially omitted broken perspective view schematically showing the vicinity of a rotating drum of the aquaculture cage lifting device of the present invention. As shown in the figure, the aquaculture cage pulling device 1 includes two rotary drums 10 on a rotary support shaft 2 thereof, and a sling line guide body 3 held between the rotary drums 10.

The rotating drum 10 is made of steel, has a cylindrical shape, and is provided with a large number of recesses 11 on its peripheral surface. Due to the concave portion 11, an appropriate frictional force is generated between the raised net basket 55 and the rotary drum 10, and the net basket 55 is not damaged, and the rotary drum 10 can be pulled up while preventing idling. In addition, since the recess 11 is provided, the worker's gloves or the like will not be caught or caught. The diameter of the recess 11 is 2 to 5 mm and the depth is 2 to 4 mm, so that the contact of the net basket 55 with the pearl oyster 54 can be reduced and an appropriate friction surface can be obtained. It is desirable because the diameter of a normal suspension line is about 6 mm, so that it is not caught.

The hanging rope guide body 3 is made of steel and has a structure in which the convex surfaces 4 face each other, and forms a narrow hanging rope insertion portion 5 toward the rotary support shaft 2. The convex surface 4 has a plurality of radial inclined grooves 6 that are tilted forward in the rotational direction from the substantially central portion toward the outer periphery.

FIGS. 2A and 2B are schematic cross-sectional views taken along the line IIa-IIa of FIG. 1, showing the state of the rotary drum and the suspension line shown in FIG. 1, respectively. The schematic sectional drawing which follows the IIb-IIb line is shown. As shown in this figure, the suspension cord 53 does not fit into the concave portion 11 of the rotary drum 10, and therefore is not caught in the rotary drum 10.

FIG. 3 is an overall schematic perspective view of the aquaculture cage pulling apparatus using the rotating drum of FIG. As shown in this figure, the aquaculture cage pulling apparatus 1 includes a main body frame that houses two rotating drums 10 and a hanging rope guide body 3 and a driving means (not shown) such as a motor for rotating them in the winding direction. It consists of 1a.

Next, the operation will be described. The main rope 52 is pulled up by the main rope hoisting device 58, and the hanging ropes 53 that are sequentially handed are inserted into the hanging rope guide 3 of the aquaculture cage pulling device 1. The hanging rope 53 is fitted into the narrow hanging rope insertion portion 5 (see FIG. 2) toward the rotary support shaft 2 due to the weight of the net 55, and a sufficient frictional force is generated between them to pull up the net 55. Be done. After that, when the hanging rope 53 is pulled up to the position where it is gathered above the net basket 55, the hanging rope guide body 3 cannot be wound because the hanging rope 53 is divided into two directions, and the hanging rope guide body 3 The hanging rope 53 is lifted off from the hanging rope insertion portion 5 by the hanging rope winding prevention member 13 while moving toward the outside. At this time, the net basket 55 rides on the rotary drum 10 to come into contact with the concave portion 11 of the rotary drum 10 and generate an appropriate frictional force during this time, and is further pulled up into the boat 57 so that the worker can carry out the net basket timely. 55 is picked up by hand and pulled up into the boat 57 to complete the pulling up work.

Although the suspension line guide body 3 rotates together with the rotation support shaft 2, the rotation of the rotary drum 10 is synchronized with the suspension line guide body 3 in consideration of workability and safety. Or you may slip and delay.

Here, in this embodiment, the shape of the concave portion is an elliptical shape, but various shapes such as a round hole, a hexagonal hole, a hexagonal hole, or a combination thereof are conceivable, and an appropriate frictional force is obtained. If obtained, it is not limited. Also, these can be easily processed and manufactured. Further, the concave portions are not limited to the regular arrangement as in this embodiment as long as an appropriate frictional force can be obtained. Further, although the rotating drum is made of steel, other metal or resin may be used as long as it is not scraped by shellfish, barnacles, etc. attached to the float, and is not particularly limited.

[0021]

[Effect of the device]

 As explained above, the rotating drum of the aquaculture cage pulling device of the present invention is made of metal or resin, which has better wear resistance than rubber, and has a large number of recesses on its outer peripheral surface to provide sufficient frictional force. As a result, it is possible to pull up the aquaculture cage containing the aquaculture shells by this recess, and because it has excellent wear resistance, compared to the conventional rotating drum, it is abraded by shellfish, barnacles, etc. attached to the float. It does not need to be replaced and does not require replacement.

Further, because of this concave portion, it is possible to safely pull up the aquaculture cage without pinching the hanging rope or the gloves of the worker.

Furthermore, since an appropriate frictional force can be obtained, the aquaculture cage can be pulled up without damage.

[Brief description of drawings]

FIG. 1 is a cutaway perspective view schematically showing the vicinity of a rotating drum of the aquaculture cage lifting device of the present invention.

2A is a schematic sectional view taken along line IIa-IIa in FIG. 1, and FIG. 2B is a schematic sectional view taken along line IIb-IIb in FIG.

FIG. 3 is an overall perspective view schematically showing a raising device for aquaculture baskets using the rotary drum of FIG.

FIG. 4 is a cutaway perspective view schematically showing the vicinity of a rotary drum improved from the rotary drum of the conventional aquaculture basket lifting device.

FIG. 5 is an overall perspective view schematically showing a conventional raising device for aquaculture baskets using a rotating drum.

Claims (1)

[Scope of utility model registration request] 1. A rotary drum which is arranged on a rotary support shaft of a culture basket pulling device and which pulls up a culture basket containing cultured shellfish, wherein the rotary drum is made of resin or metal, and a large number of recesses are formed on its peripheral surface. The rotating drum of the aquaculture cage lifting device characterized by the above.