JPS62130636A - Net winching machine for round haul net fishing - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a net-lifting machine used in purse seine fishing.

[Technical background] In the T5 purse seine fishery in Japan, the size of the net is large compared to the size of 111), so during purse seine operation,
1. When the sea urchin is wrapped around the hem of the sea urchin, the seventh
As shown in Figure (), the boat enters the inside of the net that has been turned, and when the net is lifted at the 9 nod of Dt'r as shown in Figure 7C, the net can be moved to the bottom of the ship or the propulsion net. It is essential to equip the stern with a net-lifting machine, as it can get caught in the net.

In addition, the net lifting machine should be fixed and installed in a position suitable for lifting the net on the tail, and since it will be destroyed when casting the net, it should be stored on the side opposite to the working port of 11 when casting the net. It is necessary to horizontally shift between the port and starboard sides of the stern.1,] The net is slipping in its forward direction, and tension is applied.1. : i':
'The pulling angle of the net-lifting machine on the lower side is not shown in Figure 8.'
Normally, the net lifting machine has a rotation function of 900 tJ, so at t5- when nets are lifted with the same conditions
(No - (' is present, even if it is stored in the support on the opposite side of the working port when casting the net, it is recommended to shorten the length occupied between the starboard and starboard sides and turn the net lifter in the opposite direction! +) /stomach.

■Easy net Bi (koro 1 easy net is completed rl, if it is - Reit small - ra -): I will move on to the site of the fish catching net, but I will put the net on the side hauler. It requires a lot of manpower, and it is easy to move to 1) (+) frying.
I hope to make it 1 J11. .

1. = When using a purse seine, a float net is used for the body net, and a rigid tie is used for the dip net, to create a gullet net that surrounds the fish nY, but when fishing for schools of fish with 1ILi bottoms or schools of fish in deep water, rigid ties are used. It is necessary to increase the depth of the hem of the net, and when lifting the net, it is necessary to slip the fish as appropriate and hoist the fish net, float net, and sinker net as they are shorter than the fish net. .

[Conventional technology]

Pursenet fishing methods and 17 methods include the following:

(a) First of all, a plurality of drive rollers are cantilever-supported by a common support DHAH member and driven side by side, as seen in Japanese Patent Publication No. 50-33956 and Japanese Patent Publication No. 50-33956. A device has been proposed in which the rotating directions of the rollers are opposite to each other and the fishing net is guided in a serpentine manner between the respective drive rollers for hauling the net.

17 However, since the type B does not have the ability to move horizontally and turn, it cannot be installed at the stern and must be installed midway along the side of the ship. It is unsuitable for purse seine fishing. As mentioned in the technical background above, the size of purse seine fisheries in Japan is large compared to the size of the vessels. As a result, while the hoisting process is progressing, the boat is pulled inside the net. Regarding B, the net hit the lifting net,
Pulled to the bottom of the ship or the propulsion unit]: j7, which is in the 1 position, in addition,
Installing this net-lifting machine midway along the side would be limited by the length of the side hauler, and the efficiency of net-lifting work would be significantly impaired. Since the structure does not allow rotation, the net lifting angle is fixed, making it impossible to perform work corresponding to lifting net square loads.

(b) Net hoisting means using a net hauler as shown in Fig. 9 has a high slip rate and tends to cause small tears in the net fabric during hoisting, and the net hoisting speed between the float and the fish net is high. cannot be adjusted. There are problems such as the need for manual stepping for the sake of Party B.

(c) Since the net lifting means shown in Figure 10 lifts the net by sandwiching the net fabric, it is not only impossible to adjust the speed of lifting the fish net, float net, and sinking line, but also when the net volume becomes large, the net is lifted. The force is not transmitted to the net material and the speed of lifting the net decreases.

(d) With the net lifting means shown in Figure 11, in order to improve the net lifting force, it is necessary to lift the machine with a powerful boom, and for this reason, the center of gravity of the boat is at Kamikuni. There is a serious problem in that the point of action of the net lifting force is at a high place, the hull tends to tilt, and operation in stormy weather is dangerous. In addition, the net lifting force on the float side is insufficient, and the net lifting speed between the float, fish net, and sinker cannot be adjusted.

As a means to solve the problems mentioned above, the applicant of the present invention proposed the following 91: Eel Purse Net Lifting Machine for Eel Purse Fishing in Japanese Patent Application No. 51L-107008. As shown in FIGS. 12 and 13, this field netting machine has a plurality of net lifting drive rollers 1 and 2 each having a length larger than 1rf diameter J in parallel (ζ and A common supporting end member 3 (the supporting end member 3) is mounted on one end of each of the driving rollers 1 adjacent to each other.
, 2 are rotationally driven in opposite directions (7) In the net lifting machine, a surface II drive roller is provided on the net lifting roller 1 side of the driving roller 1, parallel to the driving rollers 1 and 2. A first guide roller 4 is attached to the supporting end member 3 of the free rotation t'T.
and the net contact surfaces 3a formed on the support end member 3 are commonly perpendicular to the central axis of the press roller.
: The axis of the rotating shaft 5 for raising and lowering the supporting end member 3 is parallel to the support OM (the mesh contact surface 3a of the member 3), the axis of the rotating shaft 5, and the driving A net lifting direction that connects two intersections between the central axes of the first drive roller 1 and the second drive roller 2 from the upper side of the net lifting rollers and the plane including the support end + 430 net contact surface. It is unique in that it is constructed in parallel.

;7) This net lifting machine also has problems such as joints. That is, as shown in Fig. 13, when a large force is applied to the net fabric to be hoisted, the winding angle of the net fabric of the drive rollers 1, 2 is made large in order to prevent the fabric from slipping. To,
When the upper side of the net lifting machine is turned toward the bow, the net fabric gets entangled with the last drive roller 2. The part (u) gets wrapped around the last drive roller 2, and the continuous net hoisting operation is interrupted or a net breakage accident occurs.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and it solves the problems of the prior art by simple and rational means, and sets the net lifting direction of the float of the purse net to the most suitable for the lifting net direction cotton. In addition to adjusting and maintaining the angle in a good condition, it is possible to adjust the net lifting speed between the float side and the sink side, prevent small tears in the net fabric by applying uniform tension to the net fabric, and lift the net fabric uniformly. We provide a net lifting machine capable of handling nets.

[Structure of the invention]

The structure of the present invention that solves the problems of the prior art (diameter)
: A plurality of drive rollers for hoisting nets having a large length are each mounted in parallel on a common supporting end member at one end, and the drive rollers adjacent to each other are driven to rotate in opposite directions. In the net lifting machine, a first guide roller is provided on the upper side of the driving roller, parallel to the driving roller, and on a supporting end member common to the driving roller, so as to be freely rotatable. In both cases, the mesh contact curves formed on the supporting end member are configured to be commonly orthogonal to the central axis of the press roller.1. 1. The configuration condition that the axis of the rotating shaft for raising and lowering the support end member is parallel to the net contact surface of the support g member, the axis of the 1!1 rotating shaft, and - the upper net lifting portion of the drive roller. A net hoisting direction connecting two intersections between the center axes of the first and eleventh drive rollers and the second drive roller and a plane including the net contact surface of the supporting end member from the side is configured to be parallel to each other;
Furthermore, a straight line connecting the two intersections of the central axes of the first drive roller and the last drive roller from the second side of the net lifting member and the plane containing the net contact surface of the supporting end member. , and, at any point on the lower side of the net lifting side than the straight lines perpendicular to both straight lines of the central axis of the first drive roller, the extension line of the axis and the net contacting surface of the supporting end member 1. The roller can be freely rotated in a direction that intersects with the plane containing the roller, and is approximately the same length as the drive roller. It is particularly noteworthy that the 20th roller is longer than this.

〔Example〕

1 to 3 show a first embodiment of the invention.

Figure 1 is a front view of the net lifting machine itself, and Figure 2 is a plan view.

FIG. 3 is an explanatory diagram.

Reference numeral 11 denotes a guide rail installed on the stern deck of the hull 12 in a direction perpendicular to the longitudinal axis of the hull 12, and a mount 13 is mounted on the guide seat 1111 so as to be horizontally movable. 1. A protrusion 14 is provided on the underside of the frame 13, and a screw pestle 15 is installed parallel to the guide rail 11. 91 on one side of the forward and reverse rotation of 15, the rack T113 is placed along the guide rail day.

The swivel base 16 is mounted rotatably for 1h.The swivel base 16 is rotatably mounted for 1h. Inside the 16, a worm wheel is provided, especially as shown in the figure 17, and the T-worm gear is mounted on the upper side of the rack 1i13 and the worm gear meshes with the first worm gear and the second worm gear. 1-, te, tsu] to the swing hydraulic motor 17 connected to the shaft end of the
- Rotation 17 through the A-mu gear! The swivel base Ifi is mounted on the same side as Shiraro 51.

As is clear from FIG. 2, the planar shape of the support 18 is an oval shape, and the inside is a hollow structure. 18a is formed at an angle j1f with respect to this net contact surface 18a, and so that it is aligned with the net lifting direction line a-a of the net.
2 sea urchins (2 wood 141゛, but 1) O) When the drive for lifting nets ``1--71! 1.20 is installed vertically, Connect the axes; the line is 1"
Recording network -/1 direction line a-a and -.7.1 (C is composed.

[QI too! -, ij+: taxl+'l 73 direction ill a -u 1. t, l', +self 1! i14
', l'
i-2) Each central axis of 20 and 1- support end member 18
1 to connect the two intersections with the plane containing the mesh contact surface +8a.
-) is set in l) which is 13J17, this network contact lrT! +8al and 11:, J' 41t end member 18
The hoisting net l'hand side A (within the first hole I + - - one 21 - nori rotates, it hangs in the sea urchin 3. This guide row 2 + lt: jjn net Fishing gear sinking line 2
The role of guiding 2 is A). , 1k, the drive I:r-ra 19.20 for the above-mentioned double lifting net has a diameter of 1 square I
It should have a large structure.

Historically, the first drive 1j-ra H1, 20 is a friction promoting means for lifting nets with the body part being 1:1, in detail, Table 1f
Tl-f part H1a, 20a in which a friction layer such as rubber and a large number of grooves 23 are formed on 11, and friction promoting means (roller 1 = 7, parts 19b, 20h, 1, -1
．． It is composed of

In other words, sufficient spinning is added to the gullet net that constitutes the purl net, and the m R ¥ is made to surround the gullet net, so that the float steel is short compared to the net (7). , body and l
It is necessary to delay the lifting of the float steel by the difference l, - of the Vr wire. As mentioned above, the friction promoting means for the float steel is the roller part 19b, 20b.
Guide it to the top, slip this part, and balance it with the fish-net. In addition, as a method that does not include a friction promoting means, it is possible to use a metal surface with low friction, or to use a drive 1.
- When a slip ring (not shown) that rotates freely is fitted to the ring 17, In addition, in the embodiment B, a portion without a friction promoting means was provided, but the drive low'>I!
1. The entire surface of 20 is used as a moderate friction promoting means 41,
A rubber layer with a hardness of 17% and a spun fabric, 1 piece J
) The lower part of the drive rollers H1 and 20 is attached to the above-mentioned support end. A pair of gears (not shown) housed in the cavity of the member 18 are fitted into the pair (7), and a hydraulic motor 24 (1-J) provided below the support end member 18 is connected to the hydraulic motor 24 (1-J). Rotating gear (
(not shown) meshes with gear 1' and tf, and the drive roller I0.20 is driven to rotate in opposite directions through both gears.

25, 2fl are jaw members that prevent the float steel 27 and the fish net from slipping upward during net lifting work, and the jaw members 25 and 26 of O are
is a fixed structure, and the drive roller 1!1.20 and (ma-
There is no rotation j7 together.

In addition, the guide roller 2111 guides the sheath line 22 (7,
The drive roller 19.20 is fed f), so that the drive roller 19.20J has a small diameter A1.

In the net lifting machine configured as described above, the present invention provides a third aspect of the present invention.
As shown in the figure, the first drive tl from the top of the net 1
A direction line a-a connecting the two intersections of the respective center axes of the first drive roller 20 of the first roller 19 and the second roller 1 and the plane containing the mending contact surface +8a of the support end member 18.

Also, a straight line perpendicular to both straight lines of the central axis of the drive roller 19 of No. Alternatively, when the extension line intersects the plane including the mesh contact surface of the support end member 18, the second guide roller 34 having the same structure as the first guide roller 2] can freely rotate. Provided in r,
: Since V+, the second guide +1- La 341t-1-
Driving row; approximately the same length as 7 [, 20, or this 2
1: Long composition. In the second embodiment, the second guide row "-734" is arranged between the first lip "1" and the second lip "1" so that the winding angle of the second guide row "1" to the drive row 20 is reduced. [1
Connect the drive rollers 19 and 20 of A, t with the direction line a-a, and connect the exit side of the net of No. 2 "1 drive + J---720 and the net entry 1-1 of the net guide roller fJ direction line +l -t3
The two are located approximately at the intersection of the two.

Next, the most preferred technical aspects of the present invention will be explained.

281.1.1'' support 6H2H member 18 on swivel base 16
A rotating shaft 17 is pivotally supported on the lower rudder 17, and the rotating shaft 28 is as shown in FIG. 1 and FIG. 2.
1', as is clear from FIGS. 1A, 1, and 2, the central axis b-b of the rotary shaft 28 is parallel to the net lifting direction a-a. The tilting means of the supporting end portion 418, specifically, the mesh contacting surface 18a, is perpendicular to the center axis b-b of the L-arranged rotating shaft 28 and ( A sill 29 is provided between the lower part of the swivel base 16 and the downward direction of the support end member 18.
91-C is performed for the expansion and contraction of the first ro.

Further, the second guide roller 34 is used for the first II and the final drive! A direction line a-a connecting rollers 19 and 20,
Final judgment [1σ] It is preferable that the net exit side of the drive roller 20 and the direction line dd connecting the net guide roller [1] are substantially perpendicular to each other.

Reference numeral 30 in the figure is a valve box for operating the 411-pressure motor 17, 24 and cylinder 29, and within this valve box 30 are a plurality of valves (not shown) that can be switched and operated by an operating lever 31.
has been collected. Mat-1 Hydraulic motor 17.2
The hydraulic conduit connecting the valve 4 and the cylinder 29 to the valve can be formed by conventionally known means, and illustrations and explanations thereof are omitted.

[For production]

Next, the operation of the embodiment described in -1- will be explained with reference to FIGS. 4 to 6. FIG. 4 shows purse seine operation in a very normal state, FIG. 5 shows a case where the float net 17 and the sink net 12 form a substantially iFL line, and FIG. 6 shows only the float IM 27. This figure shows the purse seine operation when the net is close to the seine net 22 side.

4 to 6 show the float net 27. Take in the fish net 32 and the sunken blue 22 from which the ring has been removed from between the drive roller 19 and the guide roller 21, wrap it around the drive rollers 19 and 20 in an S-shape 17, and place it on the upper side of the support end member 18. While moving the net from A to the lower side B, the drive roller 20
After exiting the net, the net is guided to a net handling machine 33 to smoothly haul out the net. The angle θ(
In this figure, the rotation table 16 is rotated via the hydraulic motor 17 to adapt to changes in the angle of incidence on the float, and the float net 27 is rotated by the driving roller 19.
．． 20 low flat portion 1f!b without friction promoting means
, 20b, and the supporting end member 18, i.e., the drive roller 1, by operating 17 the uni sill 29, which has the friction promoting means and the roller portions 19a and 20a.
9. Adjust the inclination of 20, float net 27 degrees, body net 32. Shenzi N
The net lifting speed of 22 is adjusted to ensure uniform lifting of nets. Also, ocean conditions.

Compatible with mermaid sewing (7-) (Turns and tilts the support end member 18).

:11, Figures 3 and 6 (not shown) When a large force is applied to the hoisted net fabric, the net fabric is driven to prevent the net fabric from being slit. In order to obtain a large winding angle, even if the upper side of the sea urchin hauling net is turned toward the bow, the sea urchin net fabric will not be able to reach the second driving roller 20 by J''-2 on the second guide row 934. [Effects] As described above, the present invention has the following effects.

h) The net contacting surface of the support end member can be adapted to the direction in which the net is lifted, allowing smooth and reliable net hauling to be carried out continuously.

(bl Support end members, specifically, float nets with different lengths from B in which the drive roller is tiltable.

Adjust the net speed of the fish net and sedimer net, adapt to the length, and balance the fishing net.

(c) Rotate the supporting end member of the net lifting machine with respect to the fish net to be lifted, so that a net that is suitable for the smoothness of the net and the net load can be produced.

(dl drive t1-ra, the support end member equipped with guide rollers should be able to rotate): When the net is finished, → the first move of raising the net with the J ID hauler. By simply turning the direction to the bow side, the netting can be automatically placed on the one-speed hauler. O]ro.

(e) The presence of the second guide roller prevents the slack of the fabric that has passed the drive roller of the final board from becoming entangled with the drive roller of the final board. In particular, as shown in J in Fig. 6, when a large force is applied to the net to be lifted, the winding angle of the net to the drive roller is set large in order to prevent the net from becoming slinger. 1 sea urchin fishing net 1 hand side 114
Even if it is turned in the direction of the neck, there is no action to rotate the net fabric from the drive roller of the final layer as shown in Fig. 3.
Accidents such as interruption of net lifting work due to tangled nets and broken nets can be reasonably prevented.

(``) Because the net lifting machine is located at the stern, a long side port
The laying of the lar became 16f, and Taharu's net was t, +4) on the ichito hauler, and → the efficiency of the Jid hauler was the same.

4. Explanation of drawing planes i1 jH Figure 1 is an iF plane view of the field network machine of the present invention, Figure 2 is a plan view of the same as above, Figure 3 is an explanatory diagram of the main parts of 1.1, Figures 4 to 6 are Fried net (
Fig. 7 +t, b, c are the first explanatory views of the flow from the start of hoisting to the rest state after hoisting the net.

Figure 8 (, 11 Explanatory diagram showing changes in entry q and 1 angle of Koshikata, Figures 9 to 11 FIG. 12 is a front view of the net lifting machine which is the object of the improvement of the present invention, and FIG. 13 is a plan view thereof.

11 Guide L--tt, 12- ni+1 body, 13 pear stand, 14 protrusion, 15-Sae! Rod, 1 [; Swivel base, +
7flll pressure motor.

18 Support end member, 18a Net contact surface, 19.20
Drive 11-ra, Ifa, 20a Roller portion with friction promoting means.

Nib, 20h (not including the means for increasing the pressure on the upper part of the roller).

21 First guide roller, 22 For sinking, 23
Section +1-H1/.

24 nt+pressure motor, 25.26 jaw member, 2
7 Float 1i1゜28 Rotating shaft, 211 Schilling, 30 Valve box, 31. -41i1i summer 7 bars,
32 Fishnet, 33 Fishing machine, 34 Second guide +
1-ra.

Patent applicant Nichimo Co., Ltd. Figure 1 A! 4 Figure 2 Figure 3 Figure 7
(b) Figure 4159 Section 10 Figure 11 Figure 12J? “ Figure 13 Procedural amendment (voluntary) January 30, 1985, 1985 Patent application No. 273149 2, Name of invention: purse seine fishing net hauler 3, Person making the amendment Relationship to the case Patent applicant Nichimo Co., Ltd. 4, sponsored by the agent 61. Specification subject to amendment Part 1, Title of the invention Purse net fishing machine 2, Claims [Paragraph 1] (a) Length greater than diameter A plurality of net lifting drive rollers are arranged parallel to each other, and one end of each of them is axially mounted on a common support end member, and the adjacent drive rollers 1- are driven to rotate in opposite directions. (b) A first guide roller is provided on the second hand side of the drive roller, parallel to the drive roller, and on a supporting end member common to the drive roller, so as to be freely rotatable. Along with the provided groove, the net contact surface formed on the support end member is configured so as to commonly intersect with the center axis of each of the rollers, (e) the axis of the rotating shaft for raising and lowering the support end member J2; , a configuration condition in which the support end member is parallel to the mesh contact surface;
The axis of the rotating shaft, the central axis of the first drive roller and the second drive roller from the upper side of the net lifting roller among the drive rollers, and a plane including the net contact surface of the support end member. (d) Further, the center axis of each of the first drive roller and the last drive roller from the upper side of the net hoist and the net of the supporting end member are configured to be parallel to the net lifting direction connecting the intersection points, and At any point on the lower side of the hoisting net than the straight line connecting the two intersections with the plane including the contact surface and the straight line perpendicular to both straight lines of the central axis of the first drive roller, that axis or its extension. A second guide roller is provided, which is freely rotatable and has approximately the same length as the drive roller, or has a longer upward slope so that the line intersects with a plane including the mesh contact surface of the support end member. A net lifting machine for purse seine fishing.

[Claim 2] The net hauler for purse seine fishing according to Claim 1, wherein the rotating shaft is horizontal.

[Claim 3] The net lifting machine for purse seine fishing according to claim 1, wherein the rotating shaft is inclined so that the lower side of the net is directed downward.

[Section 4] There are two drive rollers, and the intersection of the axis of the second guide roller or its extension with the plane containing the mesh contact surface of the support end member is the center of the two drive axes. and an axis passing through the center of the first drive shaft and perpendicular to the axis, and a second guide at an arbitrary location on the net contacting surface of the support end member on the lower side of the net hoist. A net lifting machine for purse seine fishing according to claims 1 and 2, characterized in that a roller is provided t4.

3. Detailed Description of the Invention [Industrial Application] The present invention relates to a purse seine fishing machine.

[Technical backwax]

In the purse seine fishery in Ebisu Province, the size of the net is large compared to the size of the vessel, so when the purse seine operation is carried out to tighten the hem of the net as shown in Figure 7 a, of,[
The ship entered the inside of the net, and the 7th
If the net is lifted from the side of the ship as shown in Figure C, the net will get caught on the bottom of the ship or the propulsion machine, so it is essential to install the net lifting machine at the stern.

In addition, if the net lifting machine is fixed and installed at a position suitable for lifting the net on the stern, it will get in the way when casting the net, so when casting the net, it should be stored on the side opposite to the working port. It is necessary to move horizontally between port and starboard. , -): As the hoisting net progresses, the force is applied the most and 1. = Person q/1 angle to the net lifting machine on the float side is shown in Figure 8, I sea urchin, usually 90°I
t 1-Change shift t: In order to always adjust the conditions and shift the hoisting net, it is essential for the net hoisting machine to have the ability to swivel 4ia. It is desirable to shorten the occupied length between port and starboard. ■: Turn the sea urchin net hauling machine.

Once the hoisting of the net by the net-lifting machine is completed, the next step is to move the net to the sight hauler for side-lifting of the fish-catching net. However, it requires a great deal of human power to load the net onto the side-hauler, and it is not easy to do so. I can move on to side fishing with a fishing net. 1: I want sea urchins.

In addition, purse seiners use float nets for body nets, and spinners for sedimer nets to create a net that surrounds a school of fish.
When fishing for r or schools of fish in the deep area, it is necessary to use more spinning (the depth of the hem of the net should be increased, and when lifting the net, the float net and sinker net are shorter than the body net, so it is necessary to use suri-no-sasa as appropriate). It is necessary to raise the fish net, float net, and sinker net.

[Prior art] Purse net fishing means and 17 (, 1, below mentioned 3
゜(a) First of all, see the Japanese Patent Publication No. 5O-3395fi and the equity nl' (5L-+2250 bow publication).
A plurality of drive rollers are cantilever-supported on a common 17 support end key, and the rotation directions of the phase 1IAi1 drive rollers are opposite to each other, and a fishing net is meandered between each of the stiff drive rollers. A device has been proposed that guides nets in the same direction and lifts nets.

(7) However, since this type of device does not have horizontal movement and turning functions, it cannot be installed at the stern and must be installed halfway on the side of the ship. It is unsuitable for Japan's purse seine fishing method.0, as mentioned in the technical background mentioned above. As the hoisting process progresses, the boat moves towards the inside of the net.This means that when the net is hit by the hoisting net, it is pulled into the bottom of the boat or the propulsion machine.
7. In addition, installing a net lifting machine like this in the middle of the ship's side is limited by the length of the side hauler, and the efficiency of net lifting work is significantly hindered. Furthermore, since the structure does not allow rotation, the net lifting angle is fixed, making it impossible to perform operations corresponding to the net lifting load.

(b) Net hoisting means using a net hauler as shown in Fig. 9 has a high slip rate and tends to cause small tears in the net fabric during hoisting, and the net hoisting speed between the float and the fish net is high. cannot be adjusted. For this reason, there are problems such as the need for manual star stepping.

(c) The net lifting means shown in Fig. 10 not only cannot adjust the speed of lifting the net by pinching the net fabric and adjusting the lifting speed of the fishing net, float net, and sinker net, but also cannot adjust the lifting net speed when the net volume becomes large. The force is not transmitted to the net material and the speed of lifting the net decreases.

(d) The net lifting means shown in Figure 11 requires lifting the machine with a powerful boom in order to increase the net lifting force, which causes the ship's center of gravity to rise. There is a serious problem in that the point of action of the net lifting force is at a high place, and the lij body does not tilt, making operation in stormy weather dangerous. In addition, there are problems in that the net lifting force on the float side is insufficient, and the speed of lifting the net between the float, the fish net, and the sinker cannot be adjusted.

As a means to solve these problems, the applicant of the present invention proposed the following L-eel purse seine fishing net lifting machine as described below in Japanese Patent Application No. 1983-17958. As shown in FIG. 12 and FIG.
1 parallel supporting end member 3 and common at one end of each
A net lifting machine (at ζ,
The driving roller 1,
parallel to 2 and also on a support end member 3 common to the drive roller;
A first guide roller 4 is provided to be freely rotatable, and
The net contact surface 3a formed on the support end member 3 is configured so as to be commonly orthogonal to the center axis of each of the rollers 17, and the axis of the rotating shaft 5 for raising and lowering the support end member 3 and the support end member 3
net contact i? i3a are parallel, the axis of the rotating shaft 5, and the first
The feature is that the net hoisting direction connecting the two intersections of the central axes of the No. 11 drive roller 1 and the second drive roller 2 and the plane including the net contact surface of the support end member 3 is parallel to each other. That is.

However, this field network machine also has the following problems. That is, as shown in FIG. 13, when a large force is applied to the net to be lifted, the winding angle of the net to the drive rollers 1 and 2 is set to be large in order to prevent the net from slipping. When the upper side of the net lifting machine is turned toward the bow direction, the net material gets entangled with the last drive roller 2, as shown in the figure (,
The rope sections 0 and (b) are close together (7. The rope section (u) wraps around the drive roller 2 of the final rope H, interrupting the continuous net hoisting operation or causing a net breakage accident. .

[Purpose of the invention]

The present invention was made in view of the above circumstances, and has been developed using simple and rational means. [17] To solve the problems of the prior art, the net hoisting direction on the float side of the purse seine is maintained at the best angle with respect to the hoisting direction line, and the hoisting direction on the float side and sinker side is Net speed can be adjusted, net fabric (
Prevention 1: Minor damage to the fabric by applying even tension
An object of the present invention is to provide a net lifting machine capable of lifting a uniform net of -1 net fabric.

[Structure of the invention]

The configuration of the present invention, which solves the problems of the prior art, has a diameter of J
A plurality of drive rollers for hoisting nets having a large length are each mounted in parallel on a common supporting end member at one end, and the drive rollers adjacent to each other are driven to rotate in opposite directions. In the net lifting machine, a first guide roller is provided on the upper side of the driving roller, in parallel with the driving roller, and on a support end member common to the driving roller, and is rotatably provided with the first guide roller. A mesh contact surface formed on the supporting end member is configured to be commonly perpendicular to the center axis of each of the rollers, and the axis of the rotating shaft for raising and lowering the supporting end member;
The configuration condition that the net contacting surface of the supporting end member is parallel, the axis of the rotating shaft, and each of the first drive roller and the second drive roller from the lower side of the net hoist among the four drive rollers. The net lifting direction connecting the two intersection points of the center axis and the plane including the net contacting surface of the support end member is configured to be parallel to each other. A straight line connecting the two intersections of the center axis of each roller and a plane including the mesh contact surface of the support end member, and a straight line perpendicular to both straight lines of the center axis of the first drive roller [sumo lift]. At any point on the lower side of the net, the axis or its extension line intersects the plane containing the net contact surface of the support end member, so that it can freely rotate FIT and is approximately the same length as the drive roller or longer than this. It is characterized by the provision of a long 20th roller.

〔Example〕

1 to 3 show a first embodiment of the present invention.1. ing.

Figure 1 is a front view of the net lifting machine itself, and Figure 2 is a plan view.

FIG. 3 is an explanatory diagram.

Reference numeral 11 denotes a guide rail laid on the stern deck of the hull 12 in a direction perpendicular to the longitudinal axis of the hull 12, and a mount 13 is mounted on the guide rail 1l-l- for horizontal movement. has been done. A protrusion 14 is provided on the lower surface of the pedestal 13, into which a screw 15 installed parallel to the guide rail 11 is screwed, and by forward and reverse rotation of the screw 15,
The frame 13 is configured to be able to reciprocate 17 along the guide rail 11.

The above-mentioned frame 13-1- has a shaft cylinder (not shown) provided thereon.
A swivel base 16 with a fitting structure 17 is rotatably mounted thereon. Although not particularly shown in the figure, a worm wheel is provided inside the swivel base 16, and a worm gear mounted on the 1- side of the mount 13 is meshed with the worm wheel, and the worm gear is engaged with the worm wheel on the shaft end of the worm gear B. The worm wheel can be rotated via the worm gear j7 by the connected hydraulic swing motor 17, and the swivel base 16 can also be rotated. J: Sea urchin.

As is clear from FIG. 2, 18 is a supporting end member having an elongated oval shape in plan view and having a hollow structure inside.A mesh contacting surface 18a is formed on the upper surface of the supporting end member 18. There is. And, perpendicular to this net contact surface 18 m, and in line with the net lifting direction line a-a of the net. is vertically disposed, and the line connecting the axes of the drive rollers 19 and 20 is arranged so as not to coincide with the net direction line a-a.

That is, the net hoisting direction line a-a extends from the center axis of the first and eleventh drive rollers 19 and the second drive roller 20 from the downstream side of the net hoisting rollers, and the support end. The first filter is set at 1' to connect the two intersections with the plane containing the mesh contacting surface 18a of the member 18.

1.1 on the mesh contact surface +8a of the bottom, support end member 18
A first guide roller 21 disposed on the lower side A of the hoisting net is vertically disposed so that it rotates. This guide roller 21 serves as a guide for the sinker yi22 of the purse seine fishing gear. Driving roller 19 for the above-mentioned double lifting net
．． 20 has a length larger than the W-th Y.

Further, the drive rollers 19 and 20 mainly move the body net portion 17.
Friction promoting means for shifting the net, specifically, a roller portion 1 having a friction layer made of rubber or the like and a multi-wave engagement groove 23 formed on the surface.
9a, 20a, and a roller rod portion +11h, which does not have a friction promoting means, and J- for 20b.

At the same time, we put enough FI8 knots in the fish net that makes up the purse seine, and create a net that surrounds the fish I (Y), so the float net is short. Therefore, it is necessary to delay the lifting of the float net by the difference t between the fishnet part and the float net.As mentioned above, the float net is moved to the upper part of the roller +!lb which does not have a friction promoting means. , 20b, and this part slips and balances the lift of the fish net.In addition, in the method without friction promoting means and method 17, it is possible to use a metal surface with low friction or a drive roller. 1
7 te 7 Lee; This is the position where the rotating slit bore ring (not shown) is fitted. In addition, in this embodiment, a portion with no friction promoting means is provided, but the entire surface of the driving roller 19, 20 is made of a rubber layer having a hardness that will serve as an appropriate friction promoting means, and is made into a mesh fabric by spinning. It is also good to use float nets and sink nets, which are subject to a large amount of tension when lifting the net, by using a pickpocket net (7 yaz < 17 dI).

In addition, the lower part 1t of the drive roller 19.20 is acoustically fixed to 1 by a pair of gears (not shown) in the cavity of the support end member 18 (1), and A gear (not shown) provided at the lower part of the member 18 and rotated by an II pressure motor 24 meshes with one of the upper IL gears 17.
, the drive rollers 19, 20 are driven in opposite directions through the two gears. 1: Sea urchin.

Reference numerals 25 and 26 designate jaw members that prevent the float net 27 and fish net from slipping off in one direction during net-lifting operations. It does not rotate together with 20.

Further, the guide roller 21 guides the dipstick net 22 and supplies it to a driving roller 19.20t, and the diameter of the driving roller 19.20J is small.

In the above-described net lifting system, the present invention provides a third aspect of the present invention.
As shown in the figure, the central axes of the first drive roller 19 and the second drive roller 20 from the hand saw are connected to a plane including the net contact surface 18a of the support end member 18. A direction line a-a connecting two intersection points.

In addition, at an appropriate position (indicated by diagonal lines) on the lower side of the hoisting net, the axis or its extension line is A second guide roller 34 having a structure similar to that of the first guide roller 21 is freely rotatably provided so as to intersect with a plane including the mesh contacting surface of the support end member 18. The guide roller 34 (or has approximately the same length as the drive rollers 19 and 20, or is longer than this). In the embodiment shown in FIG. In order not to reduce the wrapping angle, the direction line a - connecting the first and second drive rollers 19.2Q
A and a direction line dd connecting the net exit side of the second drive roller 20 and the net inlet of the net guide roller are substantially perpendicular to each other.

Next, the most preferred technical matters in the present invention will be explained.

Reference numeral 28 denotes a rotating shaft that supports the support end member 18 on the swivel base 16 so that it can be raised and lowered.As is clear from FIGS. The central axis bb is parallel to the -]-recording direction a-a. Then, the support end member 1
8. More specifically, the tilting means of the net contact surface 18m is perpendicular to the center axis b-b of the rotating shaft 28, and is provided between the lower part of the swivel table 16 and the downward direction of the support end member 18. - Due to the expansion and contraction action of the cylinder 29, the line O) O]ro 3
1. 1t:, the second guide roller 34, the first and final drive [1+7-ra I! Connect 1.20/l, j,! The direction line a-a and the direction line d-d connecting the net exit side of the driving roller 20 of 1 and the net entry 11 of the roller into the net guy 1.
It is preferable to set it at a position where the and are substantially orthogonal.

In the figure, 30 is a valve box for operating the h11 pressure motor 17. ) is the first to be convened. Also) - ib pressure motor 1
7.24 and the ib pressure pipe connecting the cylinder 29 and the valve, conventionally known means will suffice, so illustrations and explanations are omitted.

[For production]

Next, the operation of the above embodiment will be explained with reference to FIGS. 4 to 6. Figure 4 shows a purse seine operation under very normal conditions (7
, FIG. 5 shows the case where the float net 17 and the dip net 12 are in a substantially straight line, and FIG. 6 shows the float! The purse net operation is shown when only f127 is close to the dip net 22 side.

Figures 4 to 6 show float M27. 32, and the result of being excluded from the ring, j! Driving roller 19 and guide roller 2
1, and pass it around the drive rollers 19 and 20 in an S-shape to move the hoist net from the upper side A of the support end 4418 to the lower side B of the hoist net, and at the same time, the drive roller 20 is pulled out. =The net is then guided to the net handling machine 33 to smoothly haul out the net. The angle θ (approximately 45° in this figure) formed between the net lifting direction line a-a and the net lifting direction of the float net 27, that is, the angle θ (approximately 45° in this figure), that is, the angle θ is 1. Rotate the turning table 111, and set the float net 27 to the drive roller 19.20, which is suitable for a portion of the roller 1 that does not have a friction promoting means, 1fit+, 20h; 1. (Also) Conflict detection and promotion means are included in the roller portions 19a and 20a. 1. Operate the cylinder 29 to adjust the inclination of the support end member 18, that is, the drive roller 1i1.20, and the float net 27
゜Mine 32. The lifting speed of the dip net 22 is adjusted to ensure uniform lifting of the net. Also, ocean conditions.

The pivoting and tilting of the support end member 18 are adjusted in accordance with the amount of mermaids.

3 and 6, when a large force is applied to the net fabric to be lifted, the winding angle of the fabric to the drive roller 20 is increased to prevent the fabric from sagging. :Even if the lower side of the net is turned toward the bow as shown in the figure, the second guide ``I-ra'' 34 can reasonably prevent the net from getting entangled with the second drive roller 20. .

〔effect〕

As described above, the present invention has the following effects.

(a) The net contacting surface of the supporting end member can be adapted to the direction in which the net 17 comes, allowing smooth and reliable net lifting to be carried out continuously.

(b) Support end members, in detail (well, since the drive roller is tiltable, the float nets have different lengths.

Adjust the speed of lifting nets for fish nets and sedimer nets (7. A balanced lifting net that adapts to the length.

(e) The supporting end member is rotated with respect to the fish net to be lifted by the net hauling machine, and a net is pulled out according to the smoothness of the net and the load on the net.

(d) Since the support end member equipped with a drive roller and a guide roller can rotate, when the net is lifted from the side using a side hauler after the net has been lifted, the 1000-handed direction of the net can be turned toward the bow side. Let me do it! The net fabric can be automatically placed on the side hoist, and the manual work of passing the net fabric onto the side hoist can be greatly reduced by 11 times.

(el) Due to the presence of the second guide roller, it is possible to prevent the threads of the fabric that have passed the last drive roller from becoming entangled with the last drive roller. In particular, J' in FIG.
When a large force is applied to the hoist net fabric, the hoist 1! Even if the second hand side of J and J is turned in the bow direction, the effect is to move the netting away from the last drive roller as shown in Figure 3, resulting in interruption of net lifting work due to entanglement of the netting, broken nets, etc. accidents can be reasonably prevented.

(f) Since the net lifting machine is located at the stern, it is possible to lay a long side hauler, and a large amount of net is carried on the side hauler, increasing the efficiency of hoisting.

[Brief explanation of drawings]

Fig. 1 is a front view of the net lifting machine of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is an explanatory diagram of the main parts, Figs. Figures a, b, and CI' are flow explanatory diagrams from the start of hoisting to the latter half of the hoisting state. Figure 8 is an explanatory diagram showing changes in the angle of incidence on the float, Figures 9~
Fig. 11 shows a pasting machine for purse seine fishing that is currently in general use, Fig. 12 is a front view of the seining machine which is the object of the improvement of the present invention, and Fig. 13 is a "Figure 4. 11 Guide 1.-, +l, l 2 Hull, 13
Frame, 14 Protrusion, catch screw, 16 Swivel stand,
17 Hydraulic motor. 18 Support end member, 18a Net contact surface, IQ, 2
0 Drive l''-ra, 19a, 20a Roller portion with friction promoting means. 19b, 20b Rollers without friction promoting means (partly. 21 First guide row →, 22 Sediment net, 23
Ichimizo in charge. 24- i1 Pressure motor, 25.26 Jaw shrine,
27 Float net. 28 Rotating shaft, 29 Nuri no da, 30 Valve box, 3
1 Operation lever, 32 Fishnet, 33 Fishing machine, 3
4 Second guide lj-ra.

Claims (1)

[Scope of Claims] [Claim 1] (a) A plurality of net lifting drive rollers each having a length larger than a diameter are mounted parallel to each other and each end is pivoted on a common support end member, In a net lifting machine in which the drive rollers adjacent to each other are driven to rotate in opposite directions, (b) a support end is provided on the upper side of the drive roller, parallel to the drive roller, and common to the drive roller; The member is provided with a first guide roller so as to be freely rotatable, and the mesh contact surface formed on the support end member is configured to be commonly orthogonal to the central axis of each of the rollers, (c) the support end A configuration condition in which the axis of the rotating shaft for raising and lowering the member is parallel to the net contact surface of the supporting end member, the axis of the rotating shaft, and the first driving roller from the upper side of the net lifting roller among the driving rollers. and a net hoisting direction connecting two intersections between the center axis of each of the second drive roller and a plane including the net contact surface of the supporting end member, and (d) further, a straight line connecting two intersections of the central axes of the first drive roller and the last drive roller and a plane including the mesh contact surface of the support end member;
In addition, at any point on the lower side of the hoisting net than a straight line perpendicular to both straight lines of the central axis of the first drive roller, that axis,
Alternatively, a second guide roller is provided which is rotatable freely and is approximately the same length as or longer than the drive roller so that its extension line intersects the plane including the mesh contact surface of the support end member. A net lifting machine for purse seine fishing. [Claim 2] The net hauler for purse seine fishing according to Claim 1, wherein the rotating shaft is horizontal. [Claim 3] The net-lifting machine for purse seine fishing according to claim 1, wherein the rotating shaft is inclined so that the upper side of the net is directed downward. [Section 4] There are two drive rollers, and the intersection of the axis of the second guide roller or its extension with the plane containing the mesh contact surface of the support end member is centered on the center of both drive shafts. A second guide roller is installed at an arbitrary location on the net contacting surface of the support end member on the lower side of the net hoist, which is surrounded by the axis passing through the axis and the axis passing through the center of the first drive shaft and orthogonal to the axis. A net lifting machine for purse seine fishing according to claims 1 and 2, characterized in that it is provided with: