阅读说明：本技术 撒布装置 (Dispensing device ) 是由 A·M·乔萨法森 于 2019-07-08 设计创作，主要内容包括：一种用于拖网捕鱼和地震勘探作业的撒布装置(100),包括上框架(111)、中间框架(113)以及下框架(112)。还具有位于所述上框架和所述中间框架之间的至少两个上面板(22、23),以及位于所述中间框架和所述下框架之间至少两个下面板(22、23)。其中一个上面板和其中一个下面板相对于其他面板的攻角可调。还提供有用于调节所述可调节面板的攻角的手动装置。(A spreader device (100) for trawl fishing and seismic exploration operations includes an upper frame (111), a middle frame (113), and a lower frame (112). There are also at least two upper panels (22, 23) located between the upper frame and the middle frame, and at least two lower panels (22, 23) located between the middle frame and the lower frame. The angle of attack of one of the upper and one of the lower panels relative to the other panels is adjustable. A manual means for adjusting the angle of attack of the adjustable panel is also provided.)

1. A spreading device for trawl fishing and seismic exploration operations, the device comprising:

an upper frame, a middle frame, and a lower frame;

at least two upper panels located between the upper frame and the middle frame;

at least two lower panels positioned between the middle frame and the lower frame, wherein the angle of attack of one of the upper panels and one of the lower panels relative to the other panels is adjustable; and

a manual device for adjusting an angle of attack of the adjustable panel.

2. A dispensing apparatus according to claim 1, wherein at least one of said panels is fixed.

3. A dispensing apparatus according to claim 1 or claim 2, wherein the adjustable panel is pivotal about its leading edge.

4. A dispensing device according to claim 3, wherein the adjustable panels pivot about an intermediate axis between the respective frames.

5. A dispensing device according to claim 3 or claim 4, wherein the adjustable panel is pivoted about its rear edge.

6. A dispensing device according to any preceding claim, wherein the securing member is adjacent the leading edge.

7. A dispensing apparatus according to claim 6, wherein the securing member has a hydrodynamic cross-sectional shape.

8. A dispensing device according to any preceding claim, wherein the manual adjustment means is located on at least one frame.

9. A dispensing device according to claim 8, wherein the manual adjustment means is located on the top surface of the intermediate frame.

10. A dispensing device according to claim 8 or 9, wherein the manual adjustment means are located at the top and bottom surfaces of the intermediate frame.

11. A dispensing device according to any of claims 8, 9 and 10, wherein the manual adjustment means is provided by a set of apertures in a movable panel and apertures in a fixed panel, the apertures being alignable upon movement of the movable panel.

12. A dispensing apparatus according to claim 11, wherein the apertures are adapted to receive pins.

13. A dispensing device according to claim 11 or 12, wherein the apertures are aligned relatively obliquely with respect to the local orientation of the adjustable panel.

14. A dispensing device according to any of claims 10, 11 and 12, characterized in that the small holes are arranged in an adjustment direction.

Technical Field

The present application relates to a dispensing device or trawl door.

Background

Trawl doors, also known as otter boards, deflectors, flaps and vanes, hereinafter collectively referred to as "spreader devices", are used on opposite sides of the fishing trawl or on opposite sides of the seismic system to keep the fishing trawl open or to route seismic cannons and streamers in the correct position of use.

The trawl door is used to open the fishing gear system. The trawl doors are put into the sea from the fishing boat, and the trawl doors are connected by the fishing gear. The doors are sprinkled to each side from the boat and at a distance to bring the fishing gear, i.e. fishing trawl, wires and cables, referred to herein as "system", to an optimal fishing situation.

The trawl door is connected to a steel wire cable or synthetic rope leading from the ship, and the fishing net is connected to the trawl door with another set of steel wire cables or synthetic rope from the opposite direction.

Trawl doors are typically used in pairs, with the trawl door on the right being referred to as the "starboard door" and the trawl door on the left being referred to as the "port door".

Deflectors, ailerons or vanes are used for spreading streamer systems for seismic exploration. They are also used in pairs and are arranged from the vessel in a similar manner to trawl doors to pull streamers to each side of the vessel. The deflectors are almost without exception connected to synthetic ropes leading from the vessel and the seismic system, with the streamers and other components likewise being connected by synthetic ropes.

Essentially, the trawl door and the deflector have the same purpose, both of which are to spread and hold the components in place between the trawl door and the deflector.

Generally, in the industry, the method of changing the position, angle of attack, pitch or roll of the trawl door or deflector is complex and time consuming, as it is necessary to pull the spreader onto the surface of the ship or deck. The connection unit, shackle, connector or hook to and from the spreader is disconnected and reconnected at a different location and the system is again placed in the sea.

The prior art has disclosed constructing a trawl door that is adjustable in the lateral force applied by the trawl door. The applicant's european patent EP 2734039B1 describes and states "a spreading device (10) for trawl fishing and seismic surveying operations, the device comprising:

an upper frame (11) defining a top edge of the device;

a lower frame (12) defining a bottom edge of the device;

an intermediate frame (13) between the upper frame and the lower frame,

at least two upper plates (16, 18) connected between the upper and middle frames, wherein each of the at least two upper plates has a leading edge and a trailing edge;

at least two lower plates connected between the intermediate frame and the lower frame, wherein each of the at least two lower plates has a leading edge and a trailing edge;

a drive unit (25) mounted on (i) said upper and lower frames, or (ii) said intermediate frame, or (iii) said upper, lower and intermediate frames and adapted to vary the position of at least one of said upper (16, 18) and lower plates, said drive unit (25) being adapted to be remotely controlled when the device is towed through water during use;

wherein at least one of the at least two upper plates (16, 18) or at least one of the at least two lower plates is independently adjustable so as to adjust the position of the plates towards or away from each other to control the flow of water between the at least two upper plates from the leading edge to the trailing edge and between the at least two lower plates from the leading edge to the trailing edge through the device. "

Disclosure of Invention

It is an object of the present application to provide a manually adjustable dispensing device.

According to the present application, there is provided a spreading device for trawl fishing and seismic exploration operations, the device comprising:

an upper frame, a middle frame, and a lower frame;

at least two upper panels located between the upper frame and the middle frame;

at least two lower panels positioned between the middle frame and the lower frame, wherein the angle of attack of one of the upper panels and one of the lower panels relative to the other panels is adjustable; and

a manual device for adjusting an angle of attack of the adjustable panel.

Typically, the one or more upper panels and the one or more lower panels are fixed, preferably in the aft-most panel of the device; while the other panels are adjustable. There may be only one forward facing panel or there may be two or more forward facing panels. In the preferred embodiment, there are two forward facing panels. Only one of which is adjustable, but preferably both are adjustable.

The adjustable panels are pivotable at a front edge or a middle axis between the respective frames. However, in a preferred embodiment, these adjustable panels pivot substantially at their leading edges.

The manual adjustment means is conveniently provided by a plurality of sets of apertures which are aligned at different angles and which can receive pins to fix the adjustment. The orifices may be arrayed along the direction of modulation, i.e., circumferentially arrayed relative to the local direction of modulation. However, it is preferable to arrange the orifices in an inclined array so that more precise adjustment can be achieved.

It is envisaged that the manual adjustment means may be provided on one or all of the frames, but is preferably provided on the intermediate frame. The adjusting means may be arranged at the top side of the intermediate frame, but preferably at the top and bottom side of the intermediate frame.

To provide interconnection of the frames at the leading edge of the adjustable panels, a fastener may be provided adjacent the leading edge. Preferably, the cross-section of the fixing elements has a hydrodynamic shape so as to divide the flow of water passing through the fixing elements to the respective sides of the panel.

Drawings

To assist in understanding the invention, specific embodiments of the present application will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a top view of a fishing vessel towing a fishing gear system.

Fig. 2 is a top cross-sectional view of the device showing the hydrofoil in the open position and the direction of water flow past the hydrofoil.

FIG. 3 is a perspective view of the interior surface of the dispensing device.

FIG. 4 is a perspective view of the exterior surface of the dispensing device.

FIG. 5 is a front elevational view of the interior surface of the upper frame of the dispensing device.

Fig. 6 is a perspective view of an adjustment mechanism on the intermediate frame.

Fig. 7 is a top view of the adjustment mechanism on the intermediate frame.

FIG. 8 is a side view of the dispensing device.

Detailed Description

Referring to the drawings, figures 1 and 2 (figures 1 and 13a corresponding to prior application EP 2734039B1 of the same applicant) show a top view of a fishing vessel 50 of a towing fishing system comprising a pair of spreading devices 100, the spreading devices 100 connecting the towing lines 51 and the hawsers 52 from the spreading devices 100 to the fishing trawl 53. The drawing shows the towing direction 4 of the fishing vessel and the position of the fishing gear.

The spreading device 100 in fig. 2(13a) comprises a first panel or hydrofoil body 22, a second panel or hydrofoil body 23 and a third panel 24. The water flow between the panels for spreading the trawl is shown.

The dispensing device 100 of the present application has an upper frame 111, a lower frame 112, and a middle frame 113 dividing the upper frame 111 and the lower frame 112. There are three panels between the upper frame and the middle frame. The first two panels or foils 22, 23 are adjustable and have fixed leading edges 25, 26. These leading edges structurally extend between the frames, in other words, the leading edges 25, 26 are welded between the upper frame 111 and the intermediate frame 113 and between the intermediate frame 113 and the lower frame 110, respectively. Third, panels 24 fixedly interconnect the upper and middle frames, and the middle and lower frames, respectively.

The upper and lower first and second fixed front edges 25, 26 are each supportingly welded to each other by means of the horizontal bar 21, the second front edge 26 being welded to the fixed third panel 24. The rods extend both at the front and rear surfaces of the dispensing device 100 to act as protection for the foil body.

The first and second hydrofoils 22, 23 have pivot rod handles 35 in the respective frames extending between sockets (not shown). The first and second hydrofoils have inner and outer facing sheets 40, 41, the inner and outer facing sheets 40, 41 being curved to provide hydrodynamically induced lateral forces to the panels.

As shown in fig. 6, the intermediate frame 113 has apertures 20 in its top surface for pivotal adjustment of the foils 22, 23, the number of apertures 20 being the same as the number of apertures mirrored from the bottom surface of the frame 114. The arrangement of the apertures is such as to provide a precise adjustment of the angle of closure of the attachment to the hydrofoil, i.e. between 0 and 12, in increments of 2. In other words, although the apertures are located in front of the panel, each aperture overlaps its adjacent aperture in a direction that, when the aperture is fixed, is away from its panel, while being successfully offset from the panel.

By adjusting the position of the first and second foils 22, 23, the amount of water passing through the dispensing device 100, and thus the force applied to the foils, can be controlled. This may allow to vary the position of the device in the water, either longitudinally or transversely.

A handle 7 is attached to the base of the first and second upper hydrofoils by a bolt 4, the bolt 14 extending through the handle 7. The handle 7 passes through a selected aperture in the intermediate frame 13 to secure the handle in position. A pin 6 passes through the head of the bolt 4 and then through an aperture 5 in one side of the handle, thereby limiting rotation of the bolt. A shackle 30 is passed through the slot at the end of the pin 6 to secure the pin 6 in place.

The dispensing device 100 has a slight inward facing curvature wherein the upper and lower frames extend in opposite directions from the middle frame 113.

A pair of apertured wings 37 extend inwardly from the upper and lower surfaces of the intermediate frame 113. Grub screws 40 pass through the apertures of the two wings 37 to secure the position by means of nuts located on the underside of the bottom wing. The screw 40 passes through four ears 36 on the plate 29, which itself has 4 independent eyelets 31, to which the guy cable would be connected 31. The ear 36 and the middle frame 113 are independently supported by the respective hollow tubes 22. The tab can be rotated about the screw to adjust its radial position, thereby changing the attachment position of the load cable.

FIG. 4 shows the exterior surface of the dispensing device 100. the dispensing device 100 has outwardly projecting edges on the upper, middle and lower frames 111, 113 and 112, respectively, each having a plurality of apertures 60, 61 and 62, respectively. The fishing trawl is directly connected to the apertures 60, 61, 62.

The first and second upper hydrofoil bodies 22, 23 each have a handle 35, the handle 35 being used to assist a user in physically adjusting the position of the hydrofoil.

The invention is not intended to be limited to the details of the above-described embodiments. Alternatively, the peg 4 may be secured in position using other locking mechanisms, such as a tumbler wedge or cotter pin connected directly to the peg, rather than by pin 6.

Additionally, the bolt 4 may include a threaded head so that once passed through the aperture, the bolt may be locked in position by a nut.

It is also contemplated that any other suitable locking mechanism may be used in place of the bolt, pin, and R-clip.