CA2050810A1 - Buoy for attachment to the net line of a fishing net - Google Patents
Buoy for attachment to the net line of a fishing netInfo
- Publication number
- CA2050810A1 CA2050810A1 CA 2050810 CA2050810A CA2050810A1 CA 2050810 A1 CA2050810 A1 CA 2050810A1 CA 2050810 CA2050810 CA 2050810 CA 2050810 A CA2050810 A CA 2050810A CA 2050810 A1 CA2050810 A1 CA 2050810A1
- Authority
- CA
- Canada
- Prior art keywords
- buoy
- net
- halves
- buoys
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Abstract
ABSTRACT
In order to change defective buoys on the net line of a fishing net and to change the spacing between the buoys threaded onto the net line, it has hitherto been necessary to release the net line from the net and to re-secure it to the net after re-arranging the buoys, thus to re-tie it. This is a very time-consuming task, which can now be avoided by use of the novel buoy. This novel buoy consists of two identical portions, thus of two halves, which engage against the net line and which can be assembled together effortlessly at the desired location for the complete buoy. To connect the halves, a clamping member disposed to surround the barrel-shaped buoy in a groove can be used.
In order to change defective buoys on the net line of a fishing net and to change the spacing between the buoys threaded onto the net line, it has hitherto been necessary to release the net line from the net and to re-secure it to the net after re-arranging the buoys, thus to re-tie it. This is a very time-consuming task, which can now be avoided by use of the novel buoy. This novel buoy consists of two identical portions, thus of two halves, which engage against the net line and which can be assembled together effortlessly at the desired location for the complete buoy. To connect the halves, a clamping member disposed to surround the barrel-shaped buoy in a groove can be used.
Description
Ralf Manfred LENG~FELD 2 ~
BUOY FOR ATTACHMENT TO THE NET LINE OF A FISHING NET
Fishing nets which are intended to be placed stand;ng vertically in a body of water are for ~he most part provided with a net line at the upper edge, which serves to receive the barrel-shaped buoys usually of plastics. These buoys, which are provided with a longitudinal passage, 10~ are drawn onto the net line, thus they are "threaded on". The net line is then connected or tied onto the net in such a manner that the neighbouring buoys are at a substantially constant spacing which depends on the weight of the net, the size of the buoys, and also on whether the net is to hang downwards from the surface of the water or whether the net is to be placed further down in the water. If a buoy becomes defective and has to be changed, it can be destroyed to remove it. The net line must then be released from the net, the other buoys moved and a new buoy "threaded on" at the end. The net line can then be re-secured to the net, which must be effected at at least one point and possibly also at two points between the individual buoys. This task has to be undertaken not only For replacement of defective buoys, but also when the spacing between the individual buoys has to be altered, because it is intended to use the net either higher in the water or lower in the water. This releasing of the net line from the net is a very time consuming task.
By v;rtue of the present invention, the object ;s achieved of easing this task, thus the replacement of a defective buoy and the re-distribution of the buoys on the net l;ne ;n substant;ally less t;me. This takes place by using buoys wh;ch are also of plastics, are barrel-shaped, and have a passage on the longitudinal axis intended for reception of the net line, the novel feature residing in the buoys consistin~ of two identical portions, each of which comprises one half of the passage in the form of a shell. In this manner, it is possible to remove the buoys from the net line at any location and to put them onto the net line at any desired location, without having to release the net line from the net.
Embodiments of the invention will be described below with reference to the accompanying drawings.
BUOY FOR ATTACHMENT TO THE NET LINE OF A FISHING NET
Fishing nets which are intended to be placed stand;ng vertically in a body of water are for ~he most part provided with a net line at the upper edge, which serves to receive the barrel-shaped buoys usually of plastics. These buoys, which are provided with a longitudinal passage, 10~ are drawn onto the net line, thus they are "threaded on". The net line is then connected or tied onto the net in such a manner that the neighbouring buoys are at a substantially constant spacing which depends on the weight of the net, the size of the buoys, and also on whether the net is to hang downwards from the surface of the water or whether the net is to be placed further down in the water. If a buoy becomes defective and has to be changed, it can be destroyed to remove it. The net line must then be released from the net, the other buoys moved and a new buoy "threaded on" at the end. The net line can then be re-secured to the net, which must be effected at at least one point and possibly also at two points between the individual buoys. This task has to be undertaken not only For replacement of defective buoys, but also when the spacing between the individual buoys has to be altered, because it is intended to use the net either higher in the water or lower in the water. This releasing of the net line from the net is a very time consuming task.
By v;rtue of the present invention, the object ;s achieved of easing this task, thus the replacement of a defective buoy and the re-distribution of the buoys on the net l;ne ;n substant;ally less t;me. This takes place by using buoys wh;ch are also of plastics, are barrel-shaped, and have a passage on the longitudinal axis intended for reception of the net line, the novel feature residing in the buoys consistin~ of two identical portions, each of which comprises one half of the passage in the form of a shell. In this manner, it is possible to remove the buoys from the net line at any location and to put them onto the net line at any desired location, without having to release the net line from the net.
Embodiments of the invention will be described below with reference to the accompanying drawings.
2 ~
In the drawings, Figure 1 shows a plan view of a buoy portion in the direction of the arrow I of Figure 2, ~hich shows a section on the line II-II
S of Figure I;
Figure 3 shows a side view of a second embodiment, Figure 4 shows a section on the line IV-IV of Figure 3, 10 ~
Figure 5 shows a side view o-f a third embodiment, and Figure 6 shows a section on the line VI-VI of Figure 5, The portion 1 shown in Figures 1 and 2 of a barrel-shaped buoy forms a half buoy and does this in a manner such that the section surface 2 is defined by the longitudinal axis 3 of the buoy, so that each buoy half has a passage half 4 of shell configuration. The cross-section of the complete passage which is concentric with the longitudinal axis 3 corresponds approximately to the cross-section of the line used as the net line, it being unnecessary for the passage to have the same cross-section over its entire length, as shown in the drawing; it can without any difficulty be provided with one or more narrowed sections, which inhibit displacement along the net line. Two spigots 5 and 6 are d;sposed on the sect;on surface 2, thus on the surface w;th wh;ch one of the buoy parts abuts the other, the spigots 5 and 6 taper;ng somewhat, thus having a substantially frustoconical shape. These two spigots are located diagonally oppos;te one another. The surface is also prov;ded w;th two recesses 7 and 8 which are diagonally oppos;te one another, these serving for recept;on of the sp;gots of the second buoy part, thus serving for reception of the second buoy half which is identical with the first half.
Obviously, ;n place of the sp;gots, a differently formed raised port;on or several raised portions and corresponding recesses may also be present, thus for example one or more r;bs extending in the longitudinal direct;on of the buoy and recesses matching these. In order to hold the two buoy halves together, securing means not shown in the drawing may be used, wh;ch are located in the groove 9 in the external surface of the buoy, the grooYe being formed in at least one plane located approximately transverse 2 ~
to the longitudinal axis 3 of the buoy. Obviously, it is also possible to provide more than one groove and to place a securing element into each groove.
A clamping strip may be used as a securing element, for example, a strip consisting of a plastics material, the ends of the strip being held together by a buckle-type closure. It is, however, also possible to use a resilient ring with a suitable level of prestressin~ in the groove 9.
10~ Any plastics material may be used as a material for producing the buoy half, of those materials used up to now in the manufacture of one-piece buoys for fishing nets, thus for the mos~ part foam materials having a specific weight of about 0.4g/cm3, the manufacture being effected in such a manner that the foaming takes place in a closed mould, so that every moulded component has a sealed outer skin.
In use of the novel buoys consisting of two halves, the net line can be secured once and for all to the net, thus not needing to be ever again separated from it. At the locations where a buoy is required, the two halves are positioned and held together permanently by means of a clamping member. If a buoy is damaged or has to be removed for other reasons, the clamping member is released and the buoy halves can be removed without difficulty from the net line and replaced at any desired position.
Figures 3 and ~ show a further embodiment of a buoy according to the invention. This differs from the embodiment described above in that it has no groove for a clamping member. In this case, each of the two spigots 5 and 6 and each of the two recesses 7 and 8 are provided with bores 10 and 11 opening into the outer surface 19 and having a step, 10a and 11a respectively, at the outer surface. Into at least two of these transverse passages thus formed, a bolt 12 is inserted which has a head 12a at one end and is provided with splayed tongues 12b at the other end. The two buoy halves are held together by means of these bolts. A
sleeve-form tool is needed to remove the bolt 12, by means of which the splayed tongues 12b are pressed together so that the bolts 12 may be drawn out of the transverse passage.
A third embodiment is shown in Figures 5 and 6~ In this case also, bores g ~ ~
13 are provided which extend into the outer surfaces 19 through the spigots S and 6 and the recesses 7 and 8 and extend at least substantially at right angles to the section surface 2. Relatively short pins 14 provided with barbs are now inserted into these bores 13. The pins can be S formed from plastics or metal, as can the bolts 12. Buoys of this kind can be used when it is not anticipated that the buoys will ever have to be removed and replaced. When a buoy or a buoy half is damaged and must therefore be replaced, it can be destroyed by tearing it off and then replaced by a new buoy half. This can also obviously be carried out 10~ substantially quicker than the troublesome releasing of the net line and tying it on again after the defective buoy has been replaced by a completely new buoy.
In the drawings, Figure 1 shows a plan view of a buoy portion in the direction of the arrow I of Figure 2, ~hich shows a section on the line II-II
S of Figure I;
Figure 3 shows a side view of a second embodiment, Figure 4 shows a section on the line IV-IV of Figure 3, 10 ~
Figure 5 shows a side view o-f a third embodiment, and Figure 6 shows a section on the line VI-VI of Figure 5, The portion 1 shown in Figures 1 and 2 of a barrel-shaped buoy forms a half buoy and does this in a manner such that the section surface 2 is defined by the longitudinal axis 3 of the buoy, so that each buoy half has a passage half 4 of shell configuration. The cross-section of the complete passage which is concentric with the longitudinal axis 3 corresponds approximately to the cross-section of the line used as the net line, it being unnecessary for the passage to have the same cross-section over its entire length, as shown in the drawing; it can without any difficulty be provided with one or more narrowed sections, which inhibit displacement along the net line. Two spigots 5 and 6 are d;sposed on the sect;on surface 2, thus on the surface w;th wh;ch one of the buoy parts abuts the other, the spigots 5 and 6 taper;ng somewhat, thus having a substantially frustoconical shape. These two spigots are located diagonally oppos;te one another. The surface is also prov;ded w;th two recesses 7 and 8 which are diagonally oppos;te one another, these serving for recept;on of the sp;gots of the second buoy part, thus serving for reception of the second buoy half which is identical with the first half.
Obviously, ;n place of the sp;gots, a differently formed raised port;on or several raised portions and corresponding recesses may also be present, thus for example one or more r;bs extending in the longitudinal direct;on of the buoy and recesses matching these. In order to hold the two buoy halves together, securing means not shown in the drawing may be used, wh;ch are located in the groove 9 in the external surface of the buoy, the grooYe being formed in at least one plane located approximately transverse 2 ~
to the longitudinal axis 3 of the buoy. Obviously, it is also possible to provide more than one groove and to place a securing element into each groove.
A clamping strip may be used as a securing element, for example, a strip consisting of a plastics material, the ends of the strip being held together by a buckle-type closure. It is, however, also possible to use a resilient ring with a suitable level of prestressin~ in the groove 9.
10~ Any plastics material may be used as a material for producing the buoy half, of those materials used up to now in the manufacture of one-piece buoys for fishing nets, thus for the mos~ part foam materials having a specific weight of about 0.4g/cm3, the manufacture being effected in such a manner that the foaming takes place in a closed mould, so that every moulded component has a sealed outer skin.
In use of the novel buoys consisting of two halves, the net line can be secured once and for all to the net, thus not needing to be ever again separated from it. At the locations where a buoy is required, the two halves are positioned and held together permanently by means of a clamping member. If a buoy is damaged or has to be removed for other reasons, the clamping member is released and the buoy halves can be removed without difficulty from the net line and replaced at any desired position.
Figures 3 and ~ show a further embodiment of a buoy according to the invention. This differs from the embodiment described above in that it has no groove for a clamping member. In this case, each of the two spigots 5 and 6 and each of the two recesses 7 and 8 are provided with bores 10 and 11 opening into the outer surface 19 and having a step, 10a and 11a respectively, at the outer surface. Into at least two of these transverse passages thus formed, a bolt 12 is inserted which has a head 12a at one end and is provided with splayed tongues 12b at the other end. The two buoy halves are held together by means of these bolts. A
sleeve-form tool is needed to remove the bolt 12, by means of which the splayed tongues 12b are pressed together so that the bolts 12 may be drawn out of the transverse passage.
A third embodiment is shown in Figures 5 and 6~ In this case also, bores g ~ ~
13 are provided which extend into the outer surfaces 19 through the spigots S and 6 and the recesses 7 and 8 and extend at least substantially at right angles to the section surface 2. Relatively short pins 14 provided with barbs are now inserted into these bores 13. The pins can be S formed from plastics or metal, as can the bolts 12. Buoys of this kind can be used when it is not anticipated that the buoys will ever have to be removed and replaced. When a buoy or a buoy half is damaged and must therefore be replaced, it can be destroyed by tearing it off and then replaced by a new buoy half. This can also obviously be carried out 10~ substantially quicker than the troublesome releasing of the net line and tying it on again after the defective buoy has been replaced by a completely new buoy.
Claims (8)
1. A barrel-shaped buoy of plastics for attachment to the net line of a fishing net, the buoy having a passage intended for the net line located on its longitudinal axis, characterised in that the buoy consists of two identical portions, each of which has a half of the passage in the form of a shell.
2. A buoy according to Claim 1, characterised in that each buoy portion has at least one raised portion on the surface with which it engages against the other buoy half, as well as a like number of recesses serving for reception of the raised portion of the other buoy portion.
3. A buoy according to Claim 2, characterised in that each buoy portion has two spigots on the surface with which it engages against the other buoy half, the spigots being located diagonally opposite one another, and has two recesses disposed diagonally opposite one another for the spigots of the other buoy portion.
4. A buoy according to Claim 2, characterised in that each buoy portion has a rib extending in the longitudinal direction of the buoy on the surface (2) with which it engages against the other buoy half, as well as a recess serving for reception of the rib of another buoy portion.
5. A buoy according to Claim 1, characterised in that it has on its outer surface at least one groove extending in a plane transverse to the longitudinal axis for a clamping member serving to hold the two halves together.
6. A buoy according to Claim 5, characterised in that a releasable clamping strip of plastics material is located in each groove, the strip holding the two halves together.
7. A buoy according to Claim 5, characterised in that a resilient ring holding the two halves together is located in each groove,
8. A buoy according to claim 1, characterised in that the two halves are held together by snap bolts, which are received in bores, these extending at least substantially at right angles to the surface with which the two halves engage against each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2050810 CA2050810A1 (en) | 1991-09-06 | 1991-09-06 | Buoy for attachment to the net line of a fishing net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2050810 CA2050810A1 (en) | 1991-09-06 | 1991-09-06 | Buoy for attachment to the net line of a fishing net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2050810A1 true CA2050810A1 (en) | 1993-03-07 |
Family
ID=4148314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2050810 Abandoned CA2050810A1 (en) | 1991-09-06 | 1991-09-06 | Buoy for attachment to the net line of a fishing net |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2050810A1 (en) |
-
1991
- 1991-09-06 CA CA 2050810 patent/CA2050810A1/en not_active Abandoned
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5197912A (en) | Buoy for attachment to the net line of a fishing net | |
| US5133775A (en) | Covering device for an artificial limb | |
| EP1803746A3 (en) | Method of manufacturing polyelectrolyte | |
| AR242971A1 (en) | Polyurethanes reinforced with rigid rod micro fillers and process for making the same | |
| EP0329389A3 (en) | Polyurethane base lens resin, plastic lens comprising the resin and preparation method of the lens | |
| HUT61500A (en) | Method for producing insert from polyurethane foam made "in situ" and pillow made by the method | |
| BR9405774A (en) | Hot water tank structure parts destined for it and methods for its manufacture | |
| EP0416168A3 (en) | Method and device for manufacturing curved plastic stiffeners, particularly for brassieres | |
| NO920615D0 (en) | FLEXIBLE PIPE-SHIFTED CHANNEL INCLUDING A COVERAGE OF THE REINFORCED POLYETHYL, AND THE PROCEDURE AND APPARATUS OF PREPARING THEREOF | |
| EP1008430A4 (en) | Skin-carrying in-mold expanded molded body manufacturing method, the molded body, and mold used for manufacturing the same | |
| WO1985002525A1 (en) | A hanging plant pot, especially for flowers | |
| EP0634432A3 (en) | Polyurethane moulding material and the biodegradable filaments prepared therefrom. | |
| CA2050810A1 (en) | Buoy for attachment to the net line of a fishing net | |
| EP0465745A3 (en) | A sailing boat model adapted for exhibition and for sailing on the water | |
| AU651291B2 (en) | Buoy for attachment to the net line of a fishing net | |
| MX9102108A (en) | CONTAINER WITH THE UPPER PART IN THE FORM OF A CABINET AND A METHOD FOR ITS CONSTRUCTION | |
| ES514675A0 (en) | "IMPROVEMENTS IN STRUCTURES FOR MOORING, AWAY FROM THE COAST, FROM SHIPS". | |
| NZ241015A (en) | Fishing net buoy; identical spigoted halves clamp around net line | |
| IT1257866B (en) | WATCH STRAP MADE UP OF SUPPORT MATERIAL CONSTITUTED BY AT LEAST ONE LAYER | |
| GB9919485D0 (en) | Emulsion polymer having a vesiculated structure and the process for preparing the same | |
| USD368886S (en) | Boat propeller | |
| EP0600672A3 (en) | A trimming and forming machine and a die-punch set for the same. | |
| US5381747A (en) | Mast box for a sailboard | |
| IT8921103V0 (en) | MALE TAP WITH SEALING ELEMENTS FORMED IN PLASTIC MATERIAL ON THE MALE. | |
| EP0627761A3 (en) | Epitaxial overgrowth method and devices. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |