JPH0323072Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a cable pulling device, particularly in pearl and oyster farming, for use in cages, seedlings, or fish farms suspended from cables and immersed in the sea. It is used when pulling small wari etc. onto a small boat.

Conventional technology Cultivation of pearls, oysters, fish, etc. is carried out by using the sea, and baskets containing oysters, seedlings with young oysters attached, or small pieces containing young oysters are placed between ropes of a predetermined length, etc. They are suspended from cables at regular intervals so that they reach a certain depth of water, and the cables are fixed to the seabed with anchors, etc., and are floated on the sea surface with appropriate buoys attached. Then, during various types of work or during the harvest season, it is necessary to pull up the cables and pull up baskets, seedlings, small pieces, etc. onto the small boat. FIG. 5 schematically shows the outline of this lifting work, in which a small boat 21 is equipped with rope lifting devices 22, 22 on the gunwale, and ropes 22, 22, which are pulled up from the sea, are attached to the rotating bodies 1, 1, respectively.
0, and the operator of the small boat 21 pulls the rope 20 or applies power to the rope-lifting device to rotate the rotating bodies 1 and 1 to automatically pull up the rope 20 while lifting the cage suspended on the rope 20. The suspended supports 23 such as the above can be taken into the small boat 21. The rotating body 1 of the index lifting device 22 does not wrap the cable 20 around it, but only places it on the rotating body 1. cable 20
If it is wrapped around the rotating body 1, the hanging strut 24 will also be wrapped around the rotating body 1.
This is because the suspended support 23 will be destroyed.

Problems to be Solved by the Invention In the above-mentioned rope-raising work, the rope cannot be pulled up quickly and efficiently, and even if a power device is used to drive the rotating body 1, its full capacity cannot be demonstrated. First, the cable 20 had to be manually pulled together, which was inconvenient. That is, since the rotating body 1 is simply a reel-shaped drum, and the rope is placed on the drum without being wound around it, the rope 20 must be pulled up from the sea onto the boat 21. drum and rope 20
This is because unless the line 20 has a suitable contact resistance, the line 20 will not be pulled up from the sea and the drum will often idle. Therefore, the worker
This is because it is necessary to constantly press the rope 20 against the drum to create contact resistance between the two, or to pull the rope 20 up onto the boat 21 by oneself.

Therefore, in order to have a suitable contact resistance between the cable 20 and the rotating body 1, a V-groove is formed on the circumferential surface of the drum to hold the cable 20 and make it easier to release it, or when the cable is inserted into the V-groove. It has been proposed to provide a plurality of pressing pieces that press down on the drum so that they can come out and go out, and to connect these pressing pieces to a cam provided on the outside of the drum so that the drum can be adjusted.

However, according to this type of proposal, the structure of the drum becomes complicated, the operation of the cam and the pressing piece is not reliable, and it is difficult to reliably pull up the cable.

Means for Solving the Problems In view of the above-mentioned circumstances, the present invention aims to provide a rope-lifting device that can securely hold a rope and pull it up from the sea. They are alternately opposed to each other at regular intervals in the radial direction and circumferential direction, and one of the plates has an arm extending toward the other plate and is rotatably supported by the drum. The pull-up device has a rotating body which is biased by a spring toward the side opposite to the arm, and the other plate member is provided so as to be adjustable in forward and backward movement in the axial direction of the drum.

Effects According to the present invention having the above configuration, when a rope is hung on a rotating body, one of the plates rotates due to the load of the rope applied to the arm and prevents the rope from jumping up, and the relationship between the plate and the rope is By closely fitting the cables together to transmit the rotational force of the rotating body to the rope, and adjusting the other plate to approach or move away from one plate, it is possible to determine an appropriate spacing between the plates according to the diameter of the cable. The system sufficiently transmits the rotational force of the rotating body to the cable, facilitating quick and efficient pulling up of the cable.

Embodiments The present invention will be explained below based on illustrated embodiments.

FIG. 1 is a front view showing an embodiment of the cable pulling device according to the present invention, FIG. 2 is a side view thereof, FIG. 3 is a partial front view of the drum, and FIG. 4 is an explanatory view of the operation.

In FIGS. 1 and 2, a rotating body 1 is rotatably supported via bearing members 2, 2, and a shaft 3 is rotatably supported by an output sprocket 7 of a reducer 6 via a chain belt 5 that is passed around a sprocket 4. is connected to. The reduction gear 6 receives rotational driving force from a driving source 8 such as an electric motor.

The rotating body 1 is a drum 10 having flanges 9, 9 at both ends thereof, and a pair of plates 11, 12 extending from both ends to approximately the center of the drum 10 alternately oppose each other in the radial direction on the outer periphery thereof. It is erected. The plate material 11 is pivotally attached to a bracket 13 fixed to the drum 10 via a shaft 14, and the plate material 1
It has an arm 15 protruding to the second side, and a spring 16 is attached to the plate 11 on the side opposite to the arm 15.
The bullet is loaded between drum 10 and drum 10. The plate material 12 has a long hole 18 in a bracket 17 fixed to the drum 10.
18 is drilled and the bolt 1 is inserted into the elongated hole 18.
9 and a nut (not shown) screwed onto the bolt 19 thereof, the drum 10 is movable parallel to the circumferential surface of the drum 10. The opposing corners of both the plates 11 and 12 are rounded so that the cable 20 can be easily introduced between the plates 11 and 12.

As shown in FIG. 3, when the rope 20 is hung on the rotating body 1, the arm 15 receives the rope 20, and the plate 11 tilts toward the plate 12 around the shaft 14 due to the load against the force of the spring 16. . When the arm 15 is lowered near the peripheral surface of the drum 10, the cable 20 is sandwiched between the arm 15 and the plate 11 as shown by the phantom line, increasing the contact resistance. And plate material 12
If the cable 20 is extended toward the plate material 11 side and adjusted so that the cable 20 comes into contact with the plate materials 11 and 12 in an almost zigzag shape as shown in FIG. The contact resistance increases significantly, and the rotational force of the rotating body 1 can be almost completely transmitted to the rope 20, so that the rotating body 1 does not idle relative to the rope 20, and the rope 20 can be quickly and efficiently transferred from the sea to the boat. It can be pulled up. In this way, the work can be carried out comfortably without requiring the work of manually pulling the cable 20 or pressing the cable 20 against the rotating body 1.

Effects of the invention According to the invention described above, when a rope is hung on a drum, the arm that receives the rope rotates one of the plates due to the load of the rope, and the arm and the plate sandwich the rope, resulting in contact resistance. By increasing the rotational force of the drum, the rotational force of the drum is transmitted to the cable, and by adjusting the other plate close to one plate so that the cable is sandwiched between these plates in a zigzag pattern, the relationship between the drum and the cable is further improved. The contact resistance is improved, and the rotational force of the drum can be sufficiently transmitted to the rope, so that the work of pulling the rope out of the sea can be done quickly and efficiently. In addition, since the other plate can be moved and adjusted parallel to the circumferential surface of the drum, it can be used depending on the diameter of the cable, so it is versatile and convenient.

Although the present invention has been mainly described with reference to pulling up a rope, it is not limited to this, and can be applied to other cases in which similar work is performed.

[Brief explanation of the drawing]

Fig. 1 is a front view showing one embodiment of the rope pulling device according to the present invention, Fig. 2 is a side view thereof, Fig. 3 is a partial front view of the drum, Fig. 4 is an explanatory diagram of the operation, and Fig. 5
The figure is a schematic diagram of indexing work. 1...Rotating body, 6...Reducer, 8...Drive source,
11, 12...Plate material, 13, 17...Bracket, 14...Shaft, 15...Arm, 16...Spring, 18...Elongated hole, 19...Bolt, 20...
cable.

Claims (1)

[Scope of utility model registration request] At each end of the drum, place plates in the radial direction.
Further, one of the plates has an arm that extends toward the other plate and is rotatably supported on the drum, and the side opposite to the arm 1. A cable pulling device, characterized in that it has a rotary body which is biased by a spring, and the other plate member is provided so as to be movable and adjustable in the axial direction of the drum.