EP2969733B1 - Fastening device for an elastic element in a resilient unit included in an anchoring system - Google Patents
Fastening device for an elastic element in a resilient unit included in an anchoring system Download PDFInfo
- Publication number
- EP2969733B1 EP2969733B1 EP13765220.2A EP13765220A EP2969733B1 EP 2969733 B1 EP2969733 B1 EP 2969733B1 EP 13765220 A EP13765220 A EP 13765220A EP 2969733 B1 EP2969733 B1 EP 2969733B1
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- EP
- European Patent Office
- Prior art keywords
- frame
- fastening device
- attachment
- holes
- bracket support
- Prior art date
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Links
- 238000004873 anchoring Methods 0.000 title claims description 47
- 230000002787 reinforcement Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 description 16
- 238000005260 corrosion Methods 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000007373 indentation Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPINGÂ
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/20—Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPINGÂ
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B2021/003—Mooring or anchoring equipment, not otherwise provided for
- B63B2021/005—Resilient passive elements to be placed in line with mooring or towing chains, or line connections, e.g. dampers or springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPINGÂ
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/20—Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
- B63B2021/203—Mooring cables or ropes, hawsers, or the like; Adaptations thereof
Definitions
- the present invention concerns a fastening device for an anchoring element and resilient unit, included in an anchoring system, in accordance with the preamble of appended claim 1.
- Corrosion problems in components included in fastening devices which are included in anchoring systems may be of different types.
- the most common type of corrosion in fastening devices that include screw joints is crevice corrosion. Crevice corrosion occurs between two adjacent surfaces where it is possible for water to penetrate in between and thereafter become deficient in oxygen thereby allowing a local corrosion to form. Crevice corrosion thereby occurs between nut and bolt in the screw joints of fastening devices. Because of the occurrence of crevice corrosion in screw joints, there thus exists a need for an improved fastening device that to a lesser extent than earlier designs includes screw joints.
- Titanium is one such conceivable material.
- the problem with replacing steel with titanium is that titanium has a much higher price than steel, which in turn means that the product will be more expansive. In order to reduce material costs, it is therefore of interest to reduce the amount of material in the anchoring system without jeopardizing the function of the design.
- screw joints may cause worker health problems when repetitive working operations in conjunction with tightening, put strain on the person doing the tightening by way of for example wrenches, which during a longer period of time may result in a heightened risk of the worker developing work related strain injuries.
- Fastening devices for anchoring elements included in anchoring systems, for example for floating jetties and other floating structures, have long been known to exist in several different variants with different designs and shapes.
- the company Seaflex that is applying for this patent application markets such a design which is shown schematically in Fig. 1 .
- this design is made of steel and includes several screw joints. This results in a heightened risk of corrosion such as crevice corrosion in the screw joints.
- the design will result in excessive material costs if titanium is substituted for the steel.
- the design even exhibits a number of other flaws. For example, in particular situations the design exhibits unfavorable bending qualities in some of its parts.
- only an even number of rubber cables may be connected to the device.
- WO95180038 is described a variant of an anchoring system for ships that includes an attachment element with a male part that connects to a female part, which is placed on a ship in an appropriate position.
- the design differs to a great extent from the design in accordance with the present patent application.
- US4082054 shows and describes an anchoring device for boats.
- This design includes a ball that is attached to a line (rope).
- the attachment part is connected to a guiding unit that consists of a part that is secured on several legs. This part is designed so that it has a groovelike part where the ball is attached.
- the guiding unit includes a base frame that has several grooves (indentations) where the indented part may be attached.
- the design differs to a great extent from the design in accordance with the present patent application.
- US4114553 describes an anchoring device for boats.
- This design includes a tube-shaped part that has grooves in its upper and lower portions for connecting a rope or similar when anchoring a boat. A ball may also be attached to the rope by the ball being connected to the tube-shaped part's groove.
- the design differs to a great extent from the design in accordance with the present patent application.
- the fastening device 1 is for example intended to be used as a fastening device for anchoring elements included in different types of anchoring systems.
- the present fastening device is used in a resilient unit 2 (one half of a resilient unit is shown in Fig. 1 ), intended to prevent slack in anchoring elements (such as lines, rope, chains, wire or the like), included in the anchoring system with which floating jetties and similar structures may be anchored.
- the fastening device 1 is preferably used in pairs, with at least one first fastening device 1 and at least one second fastening device 1, with a number of intermediate elastic elements 3.
- One of the fastening devices is intended to be connected with at least one anchoring element to at least one structure or at least one device placed for example on the bottom of a body of water and that the second fastening device 1 is intended to be connected with at least one anchoring element to at least one floating jetty or similar.
- the elastic elements 3 may for example consist of elongated elastic rope or the like.
- the number of elastic elements 3 may vary within the scope of the present patent application.
- the number of connected elastic elements (preferably elongated elastic elements) 3 may be varied by varying the number of elastic elements 3 that are connected between the first and the second unit. In the exemplifying embodiment, the number of elastic elements may thus be varied from two and upward.
- the resilient unit 2 includes at least one device 4 with which the maximum extension length of the elastic element 3 may be limited. This may be accomplished by several different designs. A principal design is shown in Fig. 3 . This function is preferably accomplished by for example a design 5 consisting of at least one first ring (loop) 6 and at least one second ring (loop) 7 in accordance with the schematic figure. One of the rings (loops) 6 runs through the other ring (loop) 7. One of the loop's 6 ends is connected to the first fastening device 1 and the other loop's 7 ends are connected to the second fastening device 1.
- the resilient unit 2 further includes at least one elastic element 8 which guides the positions for the loops 6 and 7.
- the elastic element 8 is connected between the first fastening device 1 and the second fastening device 1.
- the loops 6 and 7, at or near their ends, are equipped with end fittings (not shown in the figures) or similar which are placed on the inner side of the loop.
- the end fittings prevent the radius of the loop becoming dangerously small for the material of each respective loop. In alternative embodiments, these may be of another for the purpose suitable embodiment, as for example one of the embodiments described in US60/902,283 .
- the present fastening device 1 includes at least one first attachment device 9 in which at least one first type of anchoring element is intended to be connected (attached).
- the fastening device 1 further includes at least one second attachment device 10 in which at least one second type of anchoring element is intended to be connected (attached).
- the first attachment device 9 and the second attachment device 10 are intended to be connected together and mutually locked with at least one locking device 11.
- the fastening device 1 is used for attaching several elastic elongated elements 3 in designs that are already part of an earlier known anchoring system that is marketed by the company called Seaflex.
- the second attachment device is intended to be used to connect to at least one anchoring element 12 that is connected to at least one object (not shown in the figures), structure or similar by which anchoring occurs.
- the anchoring element 12 consists of a band, band loop 13 or similar which is directly connected to the object or indirectly via some different type of anchoring element to the structure. Band loops are preferably used when anchoring to objects on the bottom of the body of water.
- the first fastening device 1 is intended to attach at least one first type of anchoring element.
- the anchoring elements consist preferably of elongated elastic elements 3.
- the elongated elements 3 may be of different types.
- the elastic elongated element 3 consists preferably of a rubber cable or another for the purpose suitable design.
- the elongated elements 3 may further consist of other for the purpose suitable elongated elastic objects.
- the first attachment device includes a frame 14 (main plate, block or similar).
- the frame 14 is, in the exemplifying embodiment bowl-shaped with a round or essentially round cross-section.
- the frame 14 may however, in other embodiments, be of another for the purpose suitable shape.
- the frame 14 in the exemplifying embodiment includes a first part 15 , consisting preferably of a level or essentially level part that essentially stretches in a radial direction from the frame's axial center line 16.
- the first part 15 transitions after a length in the radial direction, that may vary within the scope of the present patent application, via at least one radial-shaped part 17 in a second part 18 which stretches a length in a perpendicular or an essentially more axial direction than in a radial direction from the first part.
- the second part 18 transitions into a third part 19 which stretches perpendicular or essentially stretches more in the radial direction than in the axial direction from the second part 18.
- the second part 18 transitions preferably into the third part 19 via at least one radial-shaped part 20.
- the third part 19 may be a flange-like edge such as is shown in the figures.
- the frame 14 may be of another for the purpose suitable shape than the shape exemplified in the figures.
- the frame 14 in its first part 15 includes at least one, and preferably several, holes and/or through holes.
- the frame 14 includes at least one hole 20 in the frame's axial center and at least one second hole 21 and at least one third hole 22.
- the second hole 21 and the third hole 22 are intended as through holes for the passage of "By Pass".
- the first part 18 includes at least one fourth hole 23 and at least one fifth hole 24.
- the fourth hole 23 and the fifth hole 24 in the exemplifying embodiment consist of one first essentially rectangular aperture and one second essentially rectangular aperture.
- the frame 14 further preferably includes several attachment elements 25 for at least one and preferably several elongated elastic elements 3.
- the attachment elements 25 are preferably placed with an even distribution.
- the attachment elements 25 consists of holes 26.
- the holes 26, in the exemplifying embodiment, are placed besides/at the transition between the first part 15 and the second part 18.
- To each respective hole 26, at least one elongated element 3 is intended to be attached.
- the design includes one attachment element 25, preferably such as hole 26, per each elongated element 3 included in the anchoring system. Depending upon the number of elongated elements 3 in the anchoring system one or more holes 26 may however remain unused during connection (attachment) of the elongated elements 3 to the fastening device.
- each respective hole 26 (attachment element 25) consists of an essentially T-shaped aperture.
- Each respective hole may however have another for the purpose suitable shape.
- the T-shaped holes 26 stretch from the second part 18 via the radial-shaped part 17 to the first part 15.
- the T-shaped hole 26 consists of an aperture that stretches along a part of the frame's 14 girth and a part that initially stretches along the second part's axial direction after which it follows the radial-shaped part and further a length along the first part.
- the T-shaped holes may be of another for the purpose suitable shape.
- the elongated elements 3 are intended to be attached to the one end 27 of an attachment element 28 that in its other end 29 includes at least one connecting part 30 with a T-shaped cross-section.
- the connecting element 28 may for example consist of a variant of a clamping sleeve which includes a sleeve 31, that transitions into a T-shaped connecting part 32.
- the T-shaped connecting part 32 may in alternative embodiments have another for the purpose suitable form that is adapted according to the shape of the hole 26.
- the T-shaped connecting part 32 is formed by an axle with a first length 33 with a relative lesser diameter and a second length 51 with a relative greater diameter.
- the T-shaped connecting part 30 is intended to be inserted into a slot (hole) 26 with a shape by which the connecting part may be inserted and held firm.
- the connecting part may have a T-shape with slightly lesser dimensions than the hole 26.
- the design allows for the clamping sleeve's T-shaped connecting part 30 to be inserted into the T-shaped hole 26 from the side and inward in a radial direction.
- the connecting part 30 is locked to the frame 14.
- This locking preferably occurs by the connecting part 30 (after it has been inserted into hole 26) being inserted in the frame's 14 axial direction against the inside of the first part 15 after which a locking ring (positioning ring) 34 or the like is put on the T-shaped connecting part's first length (with a relative smaller diameter [the axle's working part]) in the intermediate space between the frame 14 and the edge of the connecting part's 30 sleeve 31.
- the locking ring 34 will essentially prevent the clamping sleeve's connecting part 30 from passing out through the hole 26.
- the fastening device 1 includes a reinforcement plate 35 that attaches to the frame's 14 first part 15 (the underside).
- the reinforcement plate 35 has preferably a round shape.
- the reinforcement plate 35 includes preferably a corresponding number of holes (slots) and through holes and also a corresponding mutual placement of holes, such as is found in the frame's 14 first part 15.
- the exemplifying embodiment of the reinforcement plate includes at least one hole in the reinforcement plate's 35 axial center and at least one second hole and one third hole intended as through holes for "By Pass”.
- the reinforcement plate 35 further includes at least one fourth hole and at least one fifth hole.
- the fourth hole and the fifth hole, in the exemplifying embodiment consist of an essentially first rectangular aperture and a second essentially rectangular aperture.
- the reinforcement plate 35 may also include notches 36.
- the notches 36 are intended, during mounting (assembly) of the reinforcement plate 35 to the frame 14, to provide space for locking rings and when appropriate even the edge of the sleeve.
- the present design also includes an insert plate. It includes a bracket support 37.
- the bracket support may have a U-shape. In alternative embodiments it is conceivable that the bracket support 37 has another for the purpose suitable shape and/or design.
- the bracket support 37 includes a first piece 38 and a second piece 39 and an intermediate section 40 between the first piece 38 and the second piece 39.
- the bracket support's 37 first piece 38 and second piece 39 are intended to be inserted into the reinforcement plate's 35 and frame's 14 rectangular notches.
- the bracket support 37 includes preferably a corresponding number of holes (slots) and through holes with the same corresponding mutual placement of holes that the reinforcement plate 35 and frame 14 include in their first part 15.
- the locking device 41 includes at least one first locking element 42 and at least one second locking element 43, whose form are alike to puzzle pieces which may connect together and be unconnected.
- the locking device consists of earlier known designs and is therefore not described in more detail in this patent application.
- the fastening device further includes a grip plate 44 which, after the procedure of the bracket support's 37 first piece 38 and second piece 39 being inserted through the rectangular apertures in the frame and the reinforcement plate, is attached to the bracket support's 37 first piece 38 and second piece 39.
- the grip plate 44 includes protruding segments 45 which are intended to be inserted into holes 46 or grooves (indentations) in the bracket support's 37 first piece 38 and second piece 39. The number of segments 45 and holes 46 as well as the spacing between the segments and holes coincide with the bracket support and grip plate.
- a tool (not shown in the figures) is used during the assembly, with which the first piece 38 and second piece 39 are parted, after which the grip plate 43 is inserted between the first piece 38 and second piece 39.
- the design also includes a contact part 47 which includes at least one bent contact surface 48 for the anchoring element, such as for example the band.
- the bent contact surface 48 may be radial shaped, partially elliptical in shape or consist of a curved surface of another for the purpose suitable shape.
- the contact surface is attached (mounted) either to the grip plate 44 or the bracket support 37 with one or more suitable for the purpose fastener 50 or fasteners 50.
- the ends of the contact surface 47 are intended to connect to the bracket support's 37 first piece 38 and second piece 39.
- the contact surface 47 is intended to be used to attach the band to the fastening device.
- the design further includes at least one plate, flange (not shown in the figures) or the like which is intended to be attached to the inside of the frame 14 against the inside of the frame's first part 15.
- the flange is preferably ring-shaped with a greater outer diameter and a lesser inner diameter.
- the outer diameter is smaller than the inner diameter of the frame's 14 first part 15.
- the inner diameter, the holes diameter is greater than the maximal width (diameter) of the locking device.
- Titanium has the advantage of it being highly resistant to corrosion. Titanium also has the advantage of it being strong in relation to its weight (the density of titanium is about 4.54 kg/dm3). In alternative embodiments it is however conceivable that another type of material suitable for the purpose be used.
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- Engineering & Computer Science (AREA)
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Description
- The present invention concerns a fastening device for an anchoring element and resilient unit, included in an anchoring system, in accordance with the preamble of appended claim 1.
- In several different situations and circumstances, there exists a need to anchor objects that float on the surface of an ocean, lake or other body of water to a secure structure (abutment, anchored structure) or similar under the surface of the water. Such situations occur for example when floating jetties and similar structures need to be anchored. Several different types of anchoring systems with included components have been created that allow the anchoring of floating jetties and similar structures.
- One problem associated with anchoring floating jetties and the like to objects that are for example located on a seafloor, a lakebed or similar is that water levels, that is to say the level of the surface of the water in relation to the bottom varies. This variation is caused, among other things by tidal cycles (tidewater), differences in wind direction and wind strength and obviously even by waves. Several devices that allow flexibility (adjustability) in the anchoring system's length have been created in order to compensate for differences in water level and the affect that this has on the anchoring elements. Another problem with known anchoring devices is caused by slack that occurs in attached lines (rope, chains) and the like, which may cause boats, boat propellers and similar to get caught in the slack.
- Several different problems arise when using anchoring systems to anchor jetties and similar to the ocean floor (lake bottom) and also anchors and the like to the bottom. One of these problems is that existing anchoring systems include parts, of for example steel, which corrode in conjunction with extended periods of contact with water. Because known anchoring systems usually spend all or most of their working life-span under water, the material included in components, especially if they are placed in water with high levels of salinity, are exposed to different types of corrosion. Different qualities of stainless steel, such as so called acid-proof steel, minimize the occurrence of corrosion problems, but even these materials will corrode eventually if they are placed in ocean water with relatively high salinity levels.
- Problems with corrosion mean that the parts of the anchoring system will corrode to such an extent that they will fail to function properly or breakdown completely.
- Corrosion problems in components included in fastening devices which are included in anchoring systems may be of different types. The most common type of corrosion in fastening devices that include screw joints, is crevice corrosion. Crevice corrosion occurs between two adjacent surfaces where it is possible for water to penetrate in between and thereafter become deficient in oxygen thereby allowing a local corrosion to form. Crevice corrosion thereby occurs between nut and bolt in the screw joints of fastening devices. Because of the occurrence of crevice corrosion in screw joints, there thus exists a need for an improved fastening device that to a lesser extent than earlier designs includes screw joints.
- One way to lessen the problems with corrosion is to choose a material that corrodes to a lesser extent than steel. Titanium is one such conceivable material. The problem with replacing steel with titanium is that titanium has a much higher price than steel, which in turn means that the product will be more expansive. In order to reduce material costs, it is therefore of interest to reduce the amount of material in the anchoring system without jeopardizing the function of the design.
- There are even other problems than material problems with fastening devices in anchoring systems that include screw joints. Firstly, the use of screw joints usually means that several working operations must be accomplished when they are utilized. According to known techniques (methods), each bolt in the screw joint is first lubricated with grease after which the nuts are applied to the bolts and after that the nuts are screwed tight with a predetermined amount of tightening torque. This method results in messy (unclean, grimy) conditions for the person performing the work and even results in grease (lubricant) contaminating the surrounding waters. Secondly, screw joints may cause worker health problems when repetitive working operations in conjunction with tightening, put strain on the person doing the tightening by way of for example wrenches, which during a longer period of time may result in a heightened risk of the worker developing work related strain injuries.
- Fastening devices for anchoring elements, included in anchoring systems, for example for floating jetties and other floating structures, have long been known to exist in several different variants with different designs and shapes. For example, the company Seaflex that is applying for this patent application markets such a design which is shown schematically in
Fig. 1 . Even if this design readily accomplishes its purpose, it still however has several flaws. For example, it is made of steel and includes several screw joints. This results in a heightened risk of corrosion such as crevice corrosion in the screw joints. Further, the design will result in excessive material costs if titanium is substituted for the steel. Besides pure material problems, the design even exhibits a number of other flaws. For example, in particular situations the design exhibits unfavorable bending qualities in some of its parts. Furthermore, in order for the design to achieve a satisfactory function, only an even number of rubber cables may be connected to the device. - In
WO95180038 -
US4082054 shows and describes an anchoring device for boats. This design includes a ball that is attached to a line (rope). The attachment part is connected to a guiding unit that consists of a part that is secured on several legs. This part is designed so that it has a groovelike part where the ball is attached. In a second embodiment, the guiding unit includes a base frame that has several grooves (indentations) where the indented part may be attached. The design differs to a great extent from the design in accordance with the present patent application.US4114553 describes an anchoring device for boats. This design includes a tube-shaped part that has grooves in its upper and lower portions for connecting a rope or similar when anchoring a boat. A ball may also be attached to the rope by the ball being connected to the tube-shaped part's groove. The design differs to a great extent from the design in accordance with the present patent application. - A device of the type defined in the introduction is known through
US 7 651 299 B2 . However, this device have the problems of crevice corrosion mentioned above. - In the following detailed description of the present invention, reference and references to the following figures will occur. Each figure is briefly described in the following figure list. The design shown in the figures is an exemplifying embodiment of the invention in accordance with the present patent application. The exemplifying embodiment is not limiting for the scope of protection of the present patent application. Note that the figures are schematic and details may thus be omitted in these.
-
Fig. 1A and 1B show a first embodiment of the design in accordance with the present patent application. -
Fig. 2 shows an exploded view drawing of the present design. -
Fig. 3 shows a device for limiting the extraction length. -
Fig. 4 shows a cross-sectional view of the included frame. -
Fig. 5A and 5B shows a clamping sleeve in accordance with one exemplifying embodiment. - With reference to the figures, a fastening device 1 in accordance with the present invention is shown. The fastening device 1 is for example intended to be used as a fastening device for anchoring elements included in different types of anchoring systems.
- In one exemplifying embodiment, the present fastening device is used in a resilient unit 2 (one half of a resilient unit is shown in
Fig. 1 ), intended to prevent slack in anchoring elements (such as lines, rope, chains, wire or the like), included in the anchoring system with which floating jetties and similar structures may be anchored. The fastening device 1 is preferably used in pairs, with at least one first fastening device 1 and at least one second fastening device 1, with a number of intermediateelastic elements 3. One of the fastening devices is intended to be connected with at least one anchoring element to at least one structure or at least one device placed for example on the bottom of a body of water and that the second fastening device 1 is intended to be connected with at least one anchoring element to at least one floating jetty or similar. Theelastic elements 3 may for example consist of elongated elastic rope or the like. The number ofelastic elements 3 may vary within the scope of the present patent application. In one and the same fastening device 1, the number of connected elastic elements (preferably elongated elastic elements) 3 may be varied by varying the number ofelastic elements 3 that are connected between the first and the second unit. In the exemplifying embodiment, the number of elastic elements may thus be varied from two and upward. - The resilient unit 2 includes at least one device 4 with which the maximum extension length of the
elastic element 3 may be limited. This may be accomplished by several different designs. A principal design is shown inFig. 3 . This function is preferably accomplished by for example adesign 5 consisting of at least one first ring (loop) 6 and at least one second ring (loop) 7 in accordance with the schematic figure. One of the rings (loops) 6 runs through the other ring (loop) 7. One of the loop's 6 ends is connected to the first fastening device 1 and the other loop's 7 ends are connected to the second fastening device 1. - The resilient unit 2 further includes at least one
elastic element 8 which guides the positions for the loops 6 and 7. Theelastic element 8 is connected between the first fastening device 1 and the second fastening device 1. The loops 6 and 7, at or near their ends, are equipped with end fittings (not shown in the figures) or similar which are placed on the inner side of the loop. The end fittings prevent the radius of the loop becoming dangerously small for the material of each respective loop. In alternative embodiments, these may be of another for the purpose suitable embodiment, as for example one of the embodiments described inUS60/902,283 - The present fastening device 1 includes at least one
first attachment device 9 in which at least one first type of anchoring element is intended to be connected (attached). The fastening device 1 further includes at least one second attachment device 10 in which at least one second type of anchoring element is intended to be connected (attached). Thefirst attachment device 9 and the second attachment device 10 are intended to be connected together and mutually locked with at least one locking device 11. - In the preferred embodiment of the present patent application, the fastening device 1 is used for attaching several elastic
elongated elements 3 in designs that are already part of an earlier known anchoring system that is marketed by the company called Seaflex. The second attachment device is intended to be used to connect to at least one anchoring element 12 that is connected to at least one object (not shown in the figures), structure or similar by which anchoring occurs. In the exemplifying embodiment, the anchoring element 12 consists of a band, band loop 13 or similar which is directly connected to the object or indirectly via some different type of anchoring element to the structure. Band loops are preferably used when anchoring to objects on the bottom of the body of water. - The first fastening device 1 is intended to attach at least one first type of anchoring element. The anchoring elements consist preferably of elongated
elastic elements 3. Theelongated elements 3 may be of different types. The elasticelongated element 3 consists preferably of a rubber cable or another for the purpose suitable design. Theelongated elements 3 may further consist of other for the purpose suitable elongated elastic objects. - The first attachment device includes a frame 14 (main plate, block or similar). The
frame 14 is, in the exemplifying embodiment bowl-shaped with a round or essentially round cross-section. Theframe 14 may however, in other embodiments, be of another for the purpose suitable shape. - The
frame 14 in the exemplifying embodiment includes afirst part 15, consisting preferably of a level or essentially level part that essentially stretches in a radial direction from the frame'saxial center line 16. Thefirst part 15 transitions after a length in the radial direction, that may vary within the scope of the present patent application, via at least one radial-shapedpart 17 in asecond part 18 which stretches a length in a perpendicular or an essentially more axial direction than in a radial direction from the first part. After a length thesecond part 18 transitions into athird part 19 which stretches perpendicular or essentially stretches more in the radial direction than in the axial direction from thesecond part 18. Thesecond part 18 transitions preferably into thethird part 19 via at least one radial-shapedpart 20. Thethird part 19 may be a flange-like edge such as is shown in the figures. In alternative embodiments theframe 14 may be of another for the purpose suitable shape than the shape exemplified in the figures. - The
frame 14 in its first part 15 (that in the exemplifying embodiment consists of an essentially level part) includes at least one, and preferably several, holes and/or through holes. In the exemplifying embodiment, theframe 14 includes at least onehole 20 in the frame's axial center and at least onesecond hole 21 and at least onethird hole 22. Thesecond hole 21 and thethird hole 22 are intended as through holes for the passage of "By Pass". Thefirst part 18 includes at least onefourth hole 23 and at least onefifth hole 24. Thefourth hole 23 and thefifth hole 24 in the exemplifying embodiment consist of one first essentially rectangular aperture and one second essentially rectangular aperture. Theframe 14 further preferably includesseveral attachment elements 25 for at least one and preferably several elongatedelastic elements 3. Theattachment elements 25 are preferably placed with an even distribution. In the exemplifying embodiment, theattachment elements 25 consists of holes 26. The holes 26, in the exemplifying embodiment, are placed besides/at the transition between thefirst part 15 and thesecond part 18. To each respective hole 26, at least oneelongated element 3 is intended to be attached. In the exemplifying embodiment, the design includes oneattachment element 25, preferably such as hole 26, per eachelongated element 3 included in the anchoring system. Depending upon the number ofelongated elements 3 in the anchoring system one or more holes 26 may however remain unused during connection (attachment) of theelongated elements 3 to the fastening device. - In the exemplifying embodiment, each respective hole 26 (attachment element 25) consists of an essentially T-shaped aperture. Each respective hole may however have another for the purpose suitable shape. The T-shaped holes 26 stretch from the
second part 18 via the radial-shapedpart 17 to thefirst part 15. The T-shaped hole 26 consists of an aperture that stretches along a part of the frame's 14 girth and a part that initially stretches along the second part's axial direction after which it follows the radial-shaped part and further a length along the first part. In alternative embodiments, the T-shaped holes may be of another for the purpose suitable shape. - The
elongated elements 3 are intended to be attached to the oneend 27 of anattachment element 28 that in itsother end 29 includes at least one connecting part 30 with a T-shaped cross-section. The connectingelement 28 may for example consist of a variant of a clamping sleeve which includes asleeve 31, that transitions into a T-shaped connecting part 32. The T-shaped connecting part 32 may in alternative embodiments have another for the purpose suitable form that is adapted according to the shape of the hole 26. The T-shaped connecting part 32 is formed by an axle with afirst length 33 with a relative lesser diameter and asecond length 51 with a relative greater diameter. The T-shaped connecting part 30 is intended to be inserted into a slot (hole) 26 with a shape by which the connecting part may be inserted and held firm. For example, the connecting part may have a T-shape with slightly lesser dimensions than the hole 26. - The design allows for the clamping sleeve's T-shaped connecting part 30 to be inserted into the T-shaped hole 26 from the side and inward in a radial direction. After the connecting part 30 has been inserted in the radial direction into the
frame 14, the connecting part 30 is locked to theframe 14. This locking preferably occurs by the connecting part 30 (after it has been inserted into hole 26) being inserted in the frame's 14 axial direction against the inside of thefirst part 15 after which a locking ring (positioning ring) 34 or the like is put on the T-shaped connecting part's first length (with a relative smaller diameter [the axle's working part]) in the intermediate space between theframe 14 and the edge of the connecting part's 30sleeve 31. When the lockingring 34 has been inserted into its position, the lockingring 34 will essentially prevent the clamping sleeve's connecting part 30 from passing out through the hole 26. - In the exemplifying embodiment, the fastening device 1 includes a
reinforcement plate 35 that attaches to the frame's 14 first part 15 (the underside). Thereinforcement plate 35 has preferably a round shape. Thereinforcement plate 35 includes preferably a corresponding number of holes (slots) and through holes and also a corresponding mutual placement of holes, such as is found in the frame's 14first part 15. Thus, the exemplifying embodiment of the reinforcement plate includes at least one hole in the reinforcement plate's 35 axial center and at least one second hole and one third hole intended as through holes for "By Pass". Thereinforcement plate 35 further includes at least one fourth hole and at least one fifth hole. The fourth hole and the fifth hole, in the exemplifying embodiment consist of an essentially first rectangular aperture and a second essentially rectangular aperture. - In the exemplifying embodiment, the
reinforcement plate 35 may also includenotches 36. Thenotches 36 are intended, during mounting (assembly) of thereinforcement plate 35 to theframe 14, to provide space for locking rings and when appropriate even the edge of the sleeve. - The present design also includes an insert plate. It includes a
bracket support 37. The bracket support may have a U-shape. In alternative embodiments it is conceivable that thebracket support 37 has another for the purpose suitable shape and/or design. Thebracket support 37 includes afirst piece 38 and asecond piece 39 and anintermediate section 40 between thefirst piece 38 and thesecond piece 39. The bracket support's 37first piece 38 andsecond piece 39 are intended to be inserted into the reinforcement plate's 35 and frame's 14 rectangular notches. Thebracket support 37 includes preferably a corresponding number of holes (slots) and through holes with the same corresponding mutual placement of holes that thereinforcement plate 35 andframe 14 include in theirfirst part 15. - During assembly (interconnection) the
frame 14, thereinforcement plate 35 and thebracket support 37 are locked, temporarily or permanently, with at least one locking device 41. In the exemplifying embodiment, the locking device 41 includes at least one first locking element 42 and at least one second locking element 43, whose form are alike to puzzle pieces which may connect together and be unconnected. The locking device consists of earlier known designs and is therefore not described in more detail in this patent application. - In the exemplifying embodiment, the fastening device further includes a
grip plate 44 which, after the procedure of the bracket support's 37first piece 38 andsecond piece 39 being inserted through the rectangular apertures in the frame and the reinforcement plate, is attached to the bracket support's 37first piece 38 andsecond piece 39. Thegrip plate 44 includes protrudingsegments 45 which are intended to be inserted intoholes 46 or grooves (indentations) in the bracket support's 37first piece 38 andsecond piece 39. The number ofsegments 45 and holes 46 as well as the spacing between the segments and holes coincide with the bracket support and grip plate. - A tool (not shown in the figures) is used during the assembly, with which the
first piece 38 andsecond piece 39 are parted, after which the grip plate 43 is inserted between thefirst piece 38 andsecond piece 39. The design also includes a contact part 47 which includes at least one bent contact surface 48 for the anchoring element, such as for example the band. The bent contact surface 48 may be radial shaped, partially elliptical in shape or consist of a curved surface of another for the purpose suitable shape. The contact surface is attached (mounted) either to thegrip plate 44 or thebracket support 37 with one or more suitable for thepurpose fastener 50 orfasteners 50. The ends of the contact surface 47 are intended to connect to the bracket support's 37first piece 38 andsecond piece 39. The contact surface 47 is intended to be used to attach the band to the fastening device. After the protrudingsegments 45 have been inserted into their correspondinghole 46 and groove (indentation), the first piece and second piece are returned to their mutual position to the point where thegrip plate 44 is locked to thebracket support 37. - The design further includes at least one plate, flange (not shown in the figures) or the like which is intended to be attached to the inside of the
frame 14 against the inside of the frame'sfirst part 15. The flange is preferably ring-shaped with a greater outer diameter and a lesser inner diameter. The outer diameter is smaller than the inner diameter of the frame's 14first part 15. The inner diameter, the holes diameter, is greater than the maximal width (diameter) of the locking device. - A unique feature of the present invention is that the material in it essentially consists of titanium. Titanium has the advantage of it being highly resistant to corrosion. Titanium also has the advantage of it being strong in relation to its weight (the density of titanium is about 4.54 kg/dm3). In alternative embodiments it is however conceivable that another type of material suitable for the purpose be used.
- In the detailed description of the present invention, design details may have been omitted which are apparent to persons skilled in the art in the field of the method and device. Such obvious design details are included to the extent necessary so that a proper and full performance (function) is achieved for the present fastening device.
- Even if certain preferred embodiments have been described and shown in detail, variations and modifications of the method and device may become apparent for specialists in the field of the invention. All such modifications and variations are regarded as falling within the scope of the following claims.
- Several advantages are achieved with the present invention. The most obvious is that an improved fastening device for anchoring elements included in anchoring systems is achieved. Another advantage of the present invention is that the earlier disadvantage of crevice corrosion in the screw joints is essentially eliminated, which is a great advantage for applications that are essentially during their entire life-span located under water.
Claims (7)
- Fastening device (1), for anchoring elements included in a resilient unit in an anchoring system for floating structures, comprised of at least one first attachment device (9), in which elastic elements (3) are intended to be connected, and at least one second attachment device (10), in which at least one anchoring element is intended to be connected, said first attachment device (9) and second attachment device (10) being intended to be connected together and be mutually locked by at least one locking device (11), said first attachment device (9) including at least one frame (14), which is provided with attachment elements (25) for attachment of the elastic elements (3) which at their ends are provided with connecting parts (30), said second attachment device (10) including at least one bracket support (37) which extends from the one side of the frame (14) through holes (23, 24) in the frame (14) to the other side of the frame (14), where the bracket support (37) includes at least one attachment device for anchoring elements, the attachment elements (25) of the frame (14) being holes (26) and said connecting parts (30) of the elastic elements (3) have a shape adapted to that of said holes (26) through which the connecting parts (30) are to be inserted and held firmly, that the device includes locking rings (34) configured to be applied to prevent the connecting parts (30) from passing out through the holes (26) in the frame (14), that the bracket support (37) has pieces (38, 39) to be inserted from one side of the frame (14) through said holes (23, 24) therein, and that a locking device configured to lock the first and second attachment devices by locking the frame (14) to the bracket support (37) includes a grip plate (44) with protruding segments (45) insertable into holes (46) or grooves in said pieces (38, 39) of the bracket support (37) on said other side of the frame (14) to lock the frame to the bracket support.
- Fastening device (1) in accordance with claim 1, characterized in that the fastening device (1) includes at least one reinforcement plate (35).
- Fastening device (1) in accordance with claim 1 or 2, characterized in that the frame (14) includes a first part (15), consisting of a level or essentially level part that essentially extends in a radial direction from the frame's (14) axial center line (16), that the first part (15) transitions after a length in the radial direction via at least one radial-shaped part (17) in a second part (18) which extends a length in a perpendicular or an essentially more axial direction than in a radial direction from the first part, that after a length the second part (18) transitions into a third part (19) which extends perpendicularly or essentially extends more in the radial direction than in the axial direction from the second part (18), and that the second part (18) transitions preferably into the third part (19) via at least one radial-shaped part (20).
- Fastening device (1) in accordance with at least one of the previous claims, characterized in that the holes (26) of the attachment elements (25) of the frame (14) have an essentially T-shaped aperture and that the connecting parts (30) are T-shaped.
- Fastening device (1) in accordance with at least one of the previous claims, characterized in that the material in the frame (14), reinforcement plate (35) and bracket support (37) consists, or essentially consists, of titanium.
- Fastening device (1) in accordance with at least one of the previous claims, characterized in that the fastening device includes at least one locking device (11, 41) that includes at least one first locking element (42) and at least one second locking element (43).
- Fastening device (1) in accordance with claim 6, characterized in that the shape of the first locking element (42) and the second locking element (43) are alike to puzzle pieces which may connect together in the locked position and be unconnected in the unlocked position.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1200174A SE537696C2 (en) | 2012-03-20 | 2012-03-20 | Spring mounting device included in a spring unit in an anchorage system and use of the mounting device |
PCT/SE2013/000038 WO2013141773A1 (en) | 2012-03-20 | 2013-03-19 | Fastening device for an elastic element in a resilient unit included in an anchoring system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2969733A1 EP2969733A1 (en) | 2016-01-20 |
EP2969733A4 EP2969733A4 (en) | 2017-01-11 |
EP2969733B1 true EP2969733B1 (en) | 2019-05-22 |
Family
ID=49223079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13765220.2A Active EP2969733B1 (en) | 2012-03-20 | 2013-03-19 | Fastening device for an elastic element in a resilient unit included in an anchoring system |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2969733B1 (en) |
SE (1) | SE537696C2 (en) |
WO (1) | WO2013141773A1 (en) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4082054A (en) | 1975-12-19 | 1978-04-04 | Bruner Frank D | Docking and mooring device for a boat |
US4114553A (en) | 1977-07-18 | 1978-09-19 | Zidek Charles E | Mooring device and cleat |
NL9302289A (en) | 1993-12-31 | 1995-07-17 | Sven Olaf Aarts | Method for manipulating a connecting element in shipping. |
US5842312A (en) * | 1995-03-01 | 1998-12-01 | E*Sorb Systems | Hysteretic damping apparati and methods |
US5983620A (en) * | 1997-07-11 | 1999-11-16 | Amoss; Robert S. | Versatile `Kenter ` type detachable anchor connecting link |
JP3547032B2 (en) * | 1997-07-31 | 2004-07-28 | 川原 康経 | Mooring line buffer |
AU2002314538A1 (en) * | 2002-06-17 | 2003-12-31 | Douglas Marine S.R.L. | Mooring damper |
DE20317006U1 (en) * | 2003-11-05 | 2004-02-05 | Huang, Yun-Peng, Bali | Flexible anchoring rope |
FR2874072B1 (en) * | 2004-08-06 | 2008-01-04 | Technip France Sa | ANCHORING SYSTEM FOR SURFACE INSTALLATION DRAWN UP ACCORDING TO HIGH FREQUENCY MOVEMENTS |
US7651229B1 (en) | 2006-05-08 | 2010-01-26 | Hsn Improvements Llc | Mirror assembly with flexible neck |
US7651299B2 (en) * | 2008-02-13 | 2010-01-26 | Yun Peng Huang | Anchoring cable with new structure and materials to buffer stress and restore elasticity |
EP2298639A1 (en) * | 2009-09-18 | 2011-03-23 | Technology From Ideas Limited | Mooring component |
-
2012
- 2012-03-20 SE SE1200174A patent/SE537696C2/en not_active IP Right Cessation
-
2013
- 2013-03-19 EP EP13765220.2A patent/EP2969733B1/en active Active
- 2013-03-19 WO PCT/SE2013/000038 patent/WO2013141773A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
WO2013141773A1 (en) | 2013-09-26 |
EP2969733A4 (en) | 2017-01-11 |
SE1200174A1 (en) | 2013-09-21 |
EP2969733A1 (en) | 2016-01-20 |
SE537696C2 (en) | 2015-09-29 |
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