JPH0125566Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an underwater fishing light dropping device for a light boat with a purse seine. The conventional work of dropping and storing underwater fishing lights requires a lot of labor, and since the work is done at night, it is very dangerous.
The purpose of the present invention is to quickly and safely perform this dangerous work of dropping and storing underwater fishing lights by remote control.

To explain an embodiment, FIG. 1 is a side view of the present invention, FIG. 2 is a top view, FIG. 3 is an explanatory diagram of a winding machine, and FIG. 4 is a sectional view taken along the line A-A'. The lower parts of a pair of L-shaped arms 1 are connected by a crankshaft 2, and the upper ends are connected by a connecting shaft 4 having several fixed plates 3. A clevis 7 is provided at each lower end 6 of a davit 5 to connect the hull. It is pivoted to the clevis bracket 10 attached to the bulwark 9 of No. 8. A hydraulic cylinder 12 is pivotally attached to the lower part of the bulwark 9 by providing a clevis bracket 11.The rod bracket 13 of the cylinder 12 is rotatably attached to the crankshaft 2, and the davit 5 is moved by the expansion and contraction of the cylinder 12. is installed so that it can be raised and lowered in the direction of arrow a-a'. The connecting shaft 4 of the davit 5 is provided with a suspension fitting 1 which can be opened and closed with a hinge 14 and can be locked with a fixing screw 15.
Several locking devices 17 with 6 are removably attached. A pair of shaft holes 21 and an arcuate hole 2 are provided on the outer surface of the roller 20 of the winding device 19 of the underwater fishing light 18.
Attach the vertical plate 23 having 2. A rubber-like elastic body 25 is attached to a bearing 24 provided at the tip of the shaft hole 21.
A roller 26 and a pulley arm 27 formed of It is tightened and fixed. A bearing 3 is installed at the tip of the pulley arm 27.
A double pulley 3 having an inner pulley 34 and outer rings 35, 35' each rotatably attached.
6 is rotatably attached with bolts and nuts 37. A slide fitting 39 having an oblong hole 38 is provided on the vertical plate 23.
The hydraulic cylinder 40 with the attached is fixed,
The vertical shaft 29 of the vertical arm 30 is inserted into the oblong hole 38 of the slide fitting 39, and the roller 26 is mounted so as to be vertically movable in the direction of the arrow bb' by the expansion and contraction of the cylinder 40. FIG. 5 is an explanatory cross-sectional view of the locking device, and FIG. 6 is an explanatory view of the operation of the clamping arm. A pair of support metal fittings 42 having guide pulleys 42' are attached to the upper part of the main body casing 41, and a suspension metal fitting 16 is fixed to the upper end of the support metal fittings 42. Inside the casing 41, a partition wall 46 is installed which has a pair of shaft holes 43 and an arcuate hole 44 and has a limit switch 45 provided at its lower part. Casing front plate 47
A pair of shaft holes 47' are provided in the shaft hole 47', and a pair of clamping cams 50 having a rotation shaft 48 and an opening/closing shaft 49 are pivotally mounted in the shaft holes 43 and 47' of the partition wall 46 and the front plate 47, respectively. The opening/closing shaft 49 is inserted into the circular arc hole 44 . A pneumatic cylinder 53 to which an opening/closing fitting 52 having an elongated arc 51 is fixed is attached to the partition wall 46, and the opening/closing shaft 4 is attached to the partition wall 46.
9 is inserted into the opening/closing fitting 52, and the clamping cam 50 is attached so that it can be opened and closed in the directions of arrows c-c' and c-c'' by expanding and contracting the cylinder 53.In using this device, first the cylinder 12 and raise the davit 5 in the direction of arrow a. At this time, the electric wire cable 54
is hanging on the double pulley 36 in a free state.

Next, when the cylinder 53 is extended, the clamping cam 50
opens in the directions of arrows c and c to release the lock of the underwater fishing light 18, and the underwater fishing light 18 falls under its own weight and sinks deep into the sea.

When the underwater fishing light 18 continues to descend and reaches a desired depth, when the cylinder 40 is extended and the roller 26 is lowered in the direction of arrow b, the electric wire cable 54 is detached from the double pulley 36, and the winding machine 19, which is still in a stopped state, is detached from the double pulley 36. The underwater fishing lamp 18 is caught on the roller 20 and is pressed as it is by the roller 26, and the sinking of the underwater fishing lamp 18 is stopped by the braking action caused by the frictional force generated there.

When storing, the roller 20 of the winding machine 19 is
When the underwater fishing light 18 is rotated in the winding direction in the same state as when it was stopped, the underwater fishing light 18 rises from the sea.

The electric wire cable 54 of the underwater fishing light 18 is connected to the winding machine 1
Although it is wound up one by one by the rotation of 9, the hull 8 is constantly rocking due to waves and swells because the work is carried out at sea. For this reason, the electric wire cable 54 also continues to swing irregularly, and the roller 2 of the winding machine 19 always
However, the double pulley 36 acts as a tension when the electric wire cable 54 on the hoisting side becomes slack (that is, when the hull 8 tilts significantly toward the davit 5). It also serves to prevent the wound cable 54 from wrapping around the roller 20. Furthermore, even if the double pulley 36 comes into contact with the roller 20 of the winding machine 19 due to rocking or the like, only the outer ring 35 rotates in contact with the roller 20, and the wire cable 54 in contact with the inner pulley 34 can be wound up. has no effect on the

The underwater fishing light 18 rising from the sea eventually reaches the lock device 17 and operates the limit switch 45. The limit switch 45 is provided to stop the hoisting machine 19 and to move the cylinder 53 in the retracting direction, thereby stopping the rising of the underwater fishing light, the cylinder 53 retracting and closing the clamping cam 50 in the direction of arrow c, and removing the electric wire. Clamp and lock the cable 54. After this, the cylinder 12 is compressed while sequentially winding up the slack in the electric wire cable 54, and the davit 5 is brought down in the direction of arrow a', and when the cylinder 40 is retracted and the roller 26 is raised in the direction of arrow b', storage can be completed. It is. The electrical, hydraulic, and pneumatic circuits in this device are not shown.

This device has a simple structure and enables the operation of dropping and storing underwater fishing lights by remote control.It saves labor, increases work efficiency, and greatly contributes to safe work.

[Brief explanation of the drawing]

Figure 1 is a side view, Figure 2 is a top view, Figure 3 is an explanatory diagram of the winding machine, Figure 4 is a cross-sectional view taken along the line A-A', Figure 5 is a cross-sectional diagram of the locking device, and Figure 6 is an explanatory diagram of the locking device. is an explanatory diagram of the operation of the clamping arm. 1...L-shaped arm, 2...crankshaft, 3...
Fixed plate, 4... Connection shaft, 5... Davit, 6...
Terminal, 7... Clevis, 8... Hull, 9... Bulwark, 10... Clevis holder, 11... Clevis holder, 12... Hydraulic cylinder, 13...
Rod metal fittings, 14...hinge, 15...fixing screw,
16... Suspension fitting, 17... Lock device, 18...
... Underwater fishing light, 19 ... Winding machine, 20 ... Roller, 21 ... Shaft hole, 22 ... Arc hole, 23 ... Vertical plate, 24 ... Bearing, 25 ... Elastic body, 26 ... Roller, 27 ...Pulley arm, 28 ...Pin, 2
9... Vertical shaft, 30... Vertical arm, 31... Pin, 32... Nut, 33... Bearing, 34... Inner pulley, 35, 35'... Outer circumferential ring, 36... Double pulley, 37 ... Bolt nut, 38 ... Oblong hole, 3
9...Slide metal fitting, 40...Hydraulic cylinder,
41...Casing, 42...Supporting metal fittings, 42'
... Guide pulley, 43 ... Shaft hole, 44 ... Arc hole,
45... Limit switch, 46... Bulkhead, 47
...Front plate, 47'...Shaft hole, 48...Rotating shaft, 4
9... Opening/closing shaft, 50... Holding cam, 51... Oblong hole, 52... Opening/closing fitting, 53... Pneumatic cylinder, 54... Electric wire cable.

Claims (1)

[Scope of Claim for Utility Model Registration] The upper ends of a pair of L-shaped arms, each with a clevis provided at its lower end rotatably pivoted to the ship's hull, are connected by a connecting shaft having a locking device capable of holding and locking an electric wire cable. In addition, in the underwater fishing light dropping device, which has a davit whose lower part is connected by a crankshaft and can be raised and lowered by a hydraulic cylinder, it has a pulley arm and a roller with a double pulley attached to the tip, and a hydraulic cylinder. By means of a winding machine having upper and lower arms, which are equipped with a cylinder so that the electric wire cable can be closely held by the rollers of the winding machine, and which are provided with double pulleys so that the electric wire cable can be fed out and removed when being dropped. An underwater fishing light dropping device for a light boat attached to a purse seine, which is configured to allow dropping and storage of underwater fishing lights.