DE1953448A1 - Hauling device (net winch or power trestle) for fishing nets - Google Patents

Description

Julio do Nascimento Sancho, Avda. Estados Unidoa 142-2 ° Decha, Lisbon / Portugal

Hauling-in device (net winch or power block) for fishing nets.

The invention relates to a powered reel device or net winch for fishing nets, in particular. Purse-seine or purse seine nets, and aims to improve such devices that are used for hauling in Nets are of paramount importance when catching bulk fish and also called power blocks, in different ways

Known devices of this type have the disadvantages that they are very difficult to move, in particular that they do not ensure adequate adjustment options in different, changing working conditions; it is It should always be taken into account here that, especially when working at sea due to storms or heavy seas, the retrieval direction for the nets is subject to major changes, i.e. that the net does not consistently maintain a main force direction in relation to the hauling winch or ship. Through this The nets with the known rigid haul-in devices or net winches or even with permanent fluctuations such, dB allow only a slight adjustment, exposed to great stress, so that the service life is significantly reduced.

The object of the invention is to eliminate the disadvantages of the known net winch recovery devices and a Provide embodiment, which is easy to work in unfavorable environmental and weather conditions made possible without excessive stress on the nets to be hauled in. At the same time, the Construction of the previous device

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operations are significantly simplified and their area of application enlarged.

According to the main feature of the invention, this object is achieved in that a rotatable in the retrieval device Roller or drum, which can be driven mechanically or hydraulically in a known manner, a rotary bearing for ' this roller and a bracket to be attached to the side of the roller pivot bearing are arranged in relation to one another in such a way that that above the role there is an easily accessible space free of any kind of fastening means. Through this Arrangement you can easily place the net at any point and at any time on the role or from this decrease, which is particularly advantageous if the network is, for example, due to low water or rocky terrain Seabed has to be partially thrown. This makes retrieving the net much easier because at the conventional hauling devices this had to be released from their suspension every time that Remove the net from the retrieval device. It goes without saying that as a result, both on the device itself and the network was easily damaged.

In a further development of the main inventive concept, in a preferred embodiment of the invention, the holder is arranged in such a way that the roller and its mounting around a substantially vertical axis are freely pivotable, so that when a network is introduced or passed through the roll is automatically aligned and its axis of rotation is essentially perpendicular to the direction of movement of the incoming net. This arrangement allows the device to be rotated by almost 360 ° and automatic alignment with respect to the network, thereby avoiding once and for all subjecting the network to strong impacts or tensile stresses like this is the case with the conventional Einholvorrichtuiigen,

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as these do not have the necessary freedom of movement and the inlet angle of the net, i.e. the angle, is calibrated between network and ship, constantly changing due to the most varied of circumstances. This can be due to, for example caused by gusts of wind, ocean currents, rough seas, the impossibility of permanently uniform positioning of the ship, etc. If, therefore, with the conventional devices no adaptation to changed inlet conditions is possible, both the network 'as the device itself is also exposed to increased stresses, which leads to a reduction in service life and too

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Destruction cowardly in moments when the full readiness for action is required. Against this lies in the device according to the invention, the resulting The tensile force of the net in relation to the retrieval roller is always in the ideal line, i.e. essentially perpendicular to the axis of rotation of the roller, while transverse forces such as those described Cause inadequacies are as good as impossible.

Conveniently, according to a further embodiment of the invention, the holder comprises one of two easily releasably connected to the roller bearing bearings substantially vertically held, which of one to the Long axis or direction is surrounded freely relatively rotationally movably arranged sleeve to a free pivoting to enable the role including its storage. This construction is particularly simple to the one mentioned To achieve adaptation to changing inlet angles «

In order to be able to adapt the device even better to different working conditions and, above all, a To achieve a greater number of angles of inclination of the device relative to the vertical, can preferably be the lower of the two axle bearings a plurality of receptacles or

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Have mounting positions for the axis. In this way, the work position of the retrieval device in _; Can be brought into several different positions in relation to its vertical, so that, for example, the cork or buoyancy line (upper limb) of the net is raised more or less, depending on the chosen inclination, so that it is always in the correct position in relation to the ship can hold. This avoids premature wear and tear of the net, since its meshes can always be kept in the position of greatest resistance, and on the other hand, upper and lower limbs, that is, buoyancy and sinking lines, which, for example, carry cork or lead pieces in a known arrangement, can the lower part of the rope is normally traversed by the lacing line, must be hauled in evenly. In other words, this means that an incorrect position of the upper and lower power supply units relative to one another, as often occurs in the known drives and devices, is excluded. Such uneven retrieval processes often result in the partial or total loss of the catch.

Next, the sleeve is useful with a fixed bearing point for attaching the roller device to a for they are provided on ships provided davit, and on the other hand are advantageous on opposite sides of the roller Means are provided for alternating attachment of the bracket to the roller bearing. So it is possible when attaching of the device to be based on the circumstances on board, i.e. owns the device has a very wide range of applications and can be used for a wide variety of positions on board.

According to a further essential feature of the invention, the roller bearing points to the sides of the roller on top extending net guides, the upper parts of which are inclined towards each other. This will make the cross-section of the Network is significantly reduced as it runs over the roll,

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making it easier to retrieve, as the greatest possible surface contact with the reel is achieved.

In such a roller device with upwardly extending net guides each having an inlet and an outlet end, a further advantageous idea of the invention provides that the inlet end is directed against the inlet direction of the net and has a substantially greater radial height than the discharge end · Thus, the device at the inlet end of the net has an increased area (from the side of the device seen), whereby a concentration of the continuous network takes place towards the roller axis and is avoided that the network is lifted from the device or swells out of this, which happened easily in the conventional devices, which essentially possessed a circular arrangement of the guides and where the guides are only used as supports for the Drum were arranged

In order to further reduce the wear and tear on the network, those that come into contact with the network are expedient Edges of the device, i.e. in particular the guide, rounded

Finally, it is in a roller device according to the invention, which regularly with a rotating, im Cross-section V-shaped gap will be provided for receiving or for the passage of the network, provided as particularly advantageous that the surface forming the gap Roller with a friction-resistant, resilient and substantially radially extending ribs Covering can be coated · By such a surface covering on the roller, which at the same time has the named ribs, protrusions, knobs or teeth and consists of Rubber or a suitable plastic can be made

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on the one hand a better adhesion of the net to the roll is achieved, on the other hand there is the stress on the net with such a substance less than, for example, with the easily corrosive metal surfaces that are common today of such roles · The better adhesion practically prevents the net from slipping in relation to the role, which also increases the service life of the device and the net.

The invention will now be explained in more detail with reference to the exemplary embodiments shown in the schematic drawings. Show it

Fig. 1 is a rear view of an embodiment, Fig. 2 is a section on the line I-II of Fig. 1,

3 is a side view corresponding to FIG. 1, on a slightly different scale and with some parts omitted.

FIG. H is a view corresponding to FIG. 1 during the Use of the device, also omitting essential parts of the bracket,

Fig. 5 is a plan view of Fig. H, and

6 is a perspective view of a further embodiment.

In the configuration of FIGS. 1 to 5, one recognizes a retrieval device with a driven roller, such as is used for fishing nets, in particular for working with his or purse seine nets. Essentially, this device comprises a driven roller or drum 10, net guides IX and 12, and a side support generally designated 13.

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ORIGINAL

The roller 10 consists of two frustoconical, coaxially mirror-inverted parts attached to one another, so that they form an annular and substantially V-shaped roller surface. In Fig. 1, the ¹ two frustoconical parts are not seen oneness, since they are both covered by a rubber-like covering 15, which comprises radially extending ribs 17. The covering and its ribs increase the adhesion of the net to the drum during retrieval, which prevents increased slippage.

The roller rotates around its axis X-X, the guides 11 and 12 with respect to the rotational movement of the roller stay firm.

As can be clearly seen from Figures 3, 4 and 5 are the net guides 11, 12 integral part of side plates 19 and 21 on opposite sides of the roll are attached. Fig. 1 shows the inclination of the guides 11, 12 towards one another, whereby they partially create a space Form immediately above the annular, V-shaped recess of the roller 10. When inserting the net into this The recess (the network is indicated in FIG. I with a dash-dotted line N) becomes the largest possible Achieved contact surface between the network and the roller surface. In addition to this, the inlet end 2 8 is each of the both guides 11, 12 enlarged to provide an inlet surface 24 (against the inlet direction of the incoming network) form, which are arranged substantially tangentially with respect to the roller 10, straight and of greater height (or Length) than the drainage side or edge 26 (see Fig. 3). In addition, as can be seen from Figures 2 and 5, the inner edge of the inlet side of each of the two net guides 11 and 12 is rounded, as can be seen at 28. These rounded edges significantly reduce the wear and tear on the net, which is caused by high friction on the guides.

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Each of the two side plates 19, 21 is each with an upper attachment option or storage, for example in the form of eyes 30, 32, and with a lower mounting option or storage, again for example in the form of eyes 31, 35. As can be seen from FIG. 1, the side bracket 13 is connected to the bearing points 32 and 35 of the side plate 21, but an attachment could as well with the bearing points 30 and 34 take place if the working conditions or operating circumstances make it necessary. the Lateral bracket 13 consists of a substantially vertically arranged axis 36, which at its upper end is held in a bearing 38 which is fastened in the bearing point 32 by means of an easily removable bolt 10 is. The lower end of the axle 36 is by means of another easily removable bolt 44 with a fork-shaped Bearing 42 connected. This fork bearing 42 is with a A plurality of holes 46 provided as receiving or fastening positions to allow a plurality of possible arrangements for the lower end of the axis 3 6 to ensure. The fork bearing 42 is with the lower bearing point 35 of the Plate 21 connected by means of a further bolt 48.

In order to achieve a relative rotation between the retrieval device and the ship, there is a sleeve around the axis 36 or bushing 50 which has a fixed bearing part 52 for attaching the device to a power block davit on the ship.

To drive the roller 10, a hydraulic motor is provided in the present example, which, depending on the fastening side of the device, will be arranged on one of the two side plates 19 or 21. This hydraulic motor was not shown in the drawing for the sake of simplicity.

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During operation, the network is introduced into the space partially enclosed by the network guides 11 «12, namely in the by the dash-dotted line N in Fig.l. position shown. The network is arranged so that the Upper limb, so the buoyancy or cork leash, and the lower limb, So the plumb line, or lead line, can be pulled together · This arrangement is then in the desired position brought above or near the charging station. thanks to the The pivoting arrangement of the sleeve 50 and axis 36 automatically directs the device in the direction of the net to be hauled in the end. The roller 10 is then driven to haul in the net.

The embodiment shown in Fig. 6 is similar to the first and shows in the drawing "if the parts i correspond to those of the first embodiment and have the same reference numerals, with a 1 denoting two-digit The reference numerals of Figures 1 to S have been placed in front of *

In this embodiment, however, the network guides 111, 112 do not have an enlarged inlet end and are for others are not inclined towards one another, so that they do not have the same advantages as the guides 11, 12. the Guides 111, 112 are, however, larger in size than the previously known, circular sickle-shaped net guides.

In addition, the bearings 132, 135 for the lateral bracket 113 are compared to the bearing points 32, 35 of the first embodiment arranged higher. It follows that the holder 113 is above the axis of rotation of the roller 110 , is provided. A hydraulic motor is indicated at 158.

Also in this embodiment of FIG. 6 allows pivoting side bracket 113 aligns the force block device in the direction of the incoming network.

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In this embodiment, too, the space is above the roller 110 is completely free and easily accessible, so that the advantages already described above result from this, especially when it is necessary to partially cast the net in low water or rocky fishing grounds is.

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Claims (1)

Julio do Nascimento Sancho, Avda. Estados Unidos 142-2 Decha, Lisbon / Portugal Retrieval device (net winch or power block) for fishing nets « Patent claims: !. Driven roller device or net winch (so-called "- S power block) for fishing nets, especially Purse-seine or purse seine nets,
characterized, that in the device a rotatable roller (10, ilO) or drum, a rotary bearing for the roller and one to be attached to the side of the rotary roller bearing Brackets (13, 113) are arranged to one another in such a way that one of fastening means above the roller every kind of free, easily accessible space is available. 2 roller device according to claim 1, characterized in that that the holder (13, 113) is arranged such that the roller (10, 110) and its storage around a essentially vertical axis (36) are freely pivotable, so that when a Network (N) an automatic alignment of the roll takes place and its axis of rotation (X-X) is always essentially perpendicular to the direction of movement of the incoming network. 3. Roller device according to claim 2, characterized in that that the holder (13, 113) is one of two easily detachable bearings (38, «+2) connected to the roller bearing. 00 98 19 / 05T7 -ν- essentially vertically held axis (36) unfolds, Many marriage of a sleeve (50) freely rotatably arranged about the longitudinal axis of the axis is surrounded to allow free pivoting of the roller (10, 110) including its La ^ erunp .. 4. Roller device according to claim 3, characterized, that the lower (42) of the two Achsonlaper a plurality of recording or ?. Defestation Positions (46) for the axis. W 5. Rollevorrichtuny according to claim 3 or 4, characterized ^ indicates that the sleeve (50) with a fixed La ^ rerpunkt (52) for attaching the device to one for the The davit provided on ships is hauled in is. 6. Rolling device ;;; according to one or more of the present Expectations, characterized, for this purpose, the roller (10, 110) guides means (32 and 35 or 30 and 34; 132 and 135 to it. ".. 13 0 and 134) for alternating iron fastening of the holder (13, 113) the roller bearings are provided. 7, I'.rolling device ^ ncich one, or several of the preceding Speech, 'thereby frying the rfekennz, that the Kollenla ^ erf: extending upwards from the sides of the i-.olle (10, llf ")." etzfTnrun £ er. (11, 1?) Which aerin upper portions toward each other Enei ^ri "are t. -3 009819/051 7 BATH ORIGINAL 8. Roller device according to one or more of the present invention The upwardly extending grid guides of claim 7, each of which Guides has an inlet and an outlet end, characterized in that that the inlet end (28) against the inlet direction des Iletzes (N) is directed towards and essentially has a greater radial height than the drain end (26). 9. RollevorrichtunfT according to claim 7 or 8, characterized, that the edges that come into contact with the Hetz (H) (23) are rounded. 10. RollanvorrichtunjT according to one or more of the preceding Claims with a circumferential, in cross-section V-shaped gap for receiving or /. to run the Iletzes, characterized, that the ^ paltsoffiigc surface of the roller (10, 110) having a reibun _t qsfestcn, resistant and having substantially radially extending ribs (17) Belaj ^ is coated (15). 009819/0517