NL2008723C2 - Vessel provided with an anchoring device. - Google Patents

Description

P30766NL00/WHA

Title: Vessel provided with an anchoring device Field of the invention

The present invention relates to a vessel comprising an anchoring device. The invention further relates to the anchoring device itself and to a method of anchoring a vessel.

5

Discussion of the prior art

Anchoring devices for vessels are known. A typical anchor is the classic anchor which is lowered from the vessel on a chain. When the anchor contacts the seabed, the vessel becomes anchored to the seabed.

10

Summary of the invention

In the invention, it was recognized that a disadvantage of a classic anchor is that the anchoring procedure is quite complicated and requires skill. The anchor sometimes needs to be dragged over the seabed for a considerable distance in order to become attached to the 15 seabed. It was further recognized that modern vessel owners, in particular owners or crews of luxury yachts, have a desire for a simpler anchoring procedure. The present invention provides an improvement in this respect.

A vessel is provided with an anchoring device, the anchoring device comprising at least one telescoping pole which is connected to a hull of the vessel, the telescoping pole 20 being extendable between: a retracted state in which the telescoping pole is retracted substantially within the hull of the vessel, and an extended state in which the telescoping pole extends downward from the hull of the vessel and is configured to contact a seabed with a lower end of the 25 telescoping pole in order to anchor the vessel to the seabed.

In an embodiment, the at least one telescoping pole is provided with a fracture zone which is substantially weaker than the rest of the telescoping pole, the fracture zone being constructed to let the telescoping pole break at least partially from the vessel when a load on the telescoping pole exceeds a predetermined limit.

30 In an embodiment, the fracture zone is located at a distance of between 0.01 - 0.2 times the length of the telescoping pole from said hull.

-2-

In an embodiment, the telescoping pole comprises multiple pole sections having different diameters, which pole sections are coaxially arranged and constructed to telescope with respect to one another between the retracted state and the extended state.

In an embodiment, the fracture zone is provided in the outermost pole section.

5 In another embodiment, the fracture zone is provided near an upper end of the outermost pole section.

In an embodiment, the anchoring device comprises a forward telescoping pole which is mounted near a bow of the vessel and a rear telescoping pole which is mounted near the stern of the vessel.

10 In an embodiment of the vessel, the fracture zone is formed by: - a part of a pole section having a reduced wall thickness, or - perforations in the pole section in the circumference thereof, or - bolts between the two pole sections, wherein the bolts are weaker than the pole sections, 15 - a part of the pole section being manufactured from a weaker material than the rest of the pole section, or - an explosive device mounted near the wall of a pole section, the explosive device being constructed and arranged to at least partially destroy the wall of a pole section when being exploded.

20 In an embodiment, the vessel comprises a forward pole which is mounted left or right of a mid-plane of the vessel and comprising a rear pole which is mounted at the opposite side of the mid-plane of the vessel.

In an embodiment, at least one telescoping pole is mounted to a frame, and the frame is mounted to the hull of the vessel.

25 In an embodiment, the vessel is a yacht. In particular, the vessel is constructed from aluminium, or a synthetic material such as glass-reinforced or carbon reinforced epoxy.

These construction materials allow a light weight vessel. The invention is particularly suitable for a lightweight vessel, as is explained herein after. However, the vessel can also be made from steel.

30 In an embodiment, in the retracted state the telescoping pole has a length which is smaller than the vertical distance between the underside of the hull and the uppermost deck above the telescoping pole, and wherein the telescoping pole is invisible from a viewpoint above the water in the retracted state. This embodiment is particularly suitable for luxury yachts.

35 In an embodiment, the vessel comprises a hole in the hull through which the telescoping pole protrudes in the extended state, and comprising a movable hatch which is -3- configured to close the hole when the telescoping pole is in the retracted state, such that in the retracted state the telescoping pole is invisible from a viewpoint underwater.

The present invention further relates to an anchoring device for a vessel, comprising at least one telescoping pole which is configured to be connected to a hull of the vessel, the 5 telescoping pole being extendable between: a retracted state in which the telescoping pole is retracted substantially within the hull of the vessel, and an extended state in which the telescoping pole extends downward from the hull of the vessel and is configured to contact a seabed with a lower end of the 10 telescoping pole in order to anchor the vessel to the seabed.

The present invention further relates to a method of anchoring a vessel provided with an anchoring device, the anchoring device comprising at least one telescoping pole which is connected to a hull of the vessel, the telescoping pole being extendable between: a retracted state in which the telescoping pole is retracted substantially within 15 the hull of the vessel, and an extended state in which the telescoping pole extends downward from the hull of the vessel and is configured to contact a seabed with a lower end of the telescoping pole in order to anchor the vessel to the seabed, the method comprising: 20 o positioning the vessel in an area where a water depth is smaller than the extended length of the telescoping pole, and o extending the telescoping pole into the extended state until the lower end of the telescoping pole contacts the seabed, thereby anchoring the vessel.

25 Brief description of the figures

In the following, the aspects, features and advantages of the present invention will be elucidated further by reference to the annexed figures illustrating exemplary embodiments. In the figures, the same parts or parts having the same function have been identified with the same reference numeral.

30 Figure 1 shows a sectional side view of a vessel according to the invention.

Figure 2 shows a sectional top view of a vessel according to the invention.

Figure 3 shows a partial sectional front view of a vessel according to the invention taken at the location of a rearward telescoping pole.

Figure 4 shows a partial sectional front view of a vessel according to the invention 35 taken at the location of a forward telescoping pole.

Figure 5 shows a sectional side view of a detail of a telescoping pole according to the invention.

-4-

Detailed description of the invention

Turning to figure 1, a vessel 10 is shown having a bow 12, a stern 14, a bridge 16 and multiple decks 18a, 18b, 18c and 18d. In this case there are four decks. The vessel comprises an anchoring device 20 according to the invention. The vessel 10 is a yacht.

5 However, the present anchoring device 20 may also be mounted in other vessels. The vessel has a length 11 and a hull 15. The vessel may of a planing type, semi-displacement type or displacement type. The hull 15 of the vessel is primarily constructed from aluminium. Aluminium is relatively light weight and has proven to be a good construction material for vessels, in particular luxury yachts which may be of the planing type, semi-displacement type 10 or displacement type.

The vessel comprises two anchoring devices 20 which comprise respective telescoping poles 22a, 22b (also indicated with numeral 22). A different number of anchoring devices 20 may be provided, in particular for vessels of a larger size. The telescoping pole 22 may be manufactured from steel pipes or another suitable material.

15 The telescoping pole 22a in the bow region is mounted at a distance 24a of between 25%-35 percent of the total length of the vessel from the bow 12. The telescoping pole 22b in the stern region is mounted at a distance 24b of between 15%-25 percent of the total length of the vessel from the stern 14.

The telescoping pole 22 has a lower end 31 with which the telescoping pole 22 can 20 contact the seabed for anchoring the vessel. The telescoping pole has a length 33 of between 5-20 meters from the underside of the vessel in the extended state. In the extended state, the telescoping pole has a substantial stiffness and strength. In an embodiment, the telescoping pole has a length 33 of 8-12 meter. This allows the vessel to be inside or directly outside many ports in the Mediterranean Sea and in other locations that are often visited by 25 luxury yachts.

Turning to figure 2, the vessel 10 has two engines 26, a port engine 26a and a starboard engine 26b. The port and starboard engines 26a, 26b are connected to respective screws 28a, 28b via axles 27a, and 27b. However, a single engine vessel may also be used. A vertical midplane 30 divides the vessel in a left half 32a and a right half 32b.

30 A wall 34 forms the exterior layer of the hull 15. The front telescoping pole 22a is mounted to the hull on the left side of the mid-plane 30 and the rear telescoping pole 22b is mounted to the right side of the mid-plane 30. This may also be arranged vice versa. The rear telescoping pole is mounted between the left axle 27a and right axle 27b. The rear telescoping pole is mounted forward of the screws 28a, 28b and rearward of the engines 35 26a, 26b.

Turning to figure 3, the rear anchoring device 20 is shown with the telescoping pole 22b in a retracted state. In the retracted state, the telescoping pole 22b is entirely inside the -5- hull. However, in a different embodiment, it is conceivable that the telescoping pole 22b remains partially outside the hull in the retracted state.

The anchoring device comprises a frame 48 in which the telescoping pole 22 is arranged. The frame 48 is mounted stationary with respect to the hull 15. This allows the 5 anchoring device 20 to be manufactured as a module separately from the vessel 10 which can be mounted in the vessel in a simple operation.

The telescoping pole comprises five pole sections 62a, 62b, 62c, 62d and 62e, in general indicated with 62. The pole sections 62 are arranged coaxially about a main axis 51. Each pole section has a diameter 65. The outermost pole section 62a is slideably arranged 10 in the frame 48. The pole section can telescope with respect to one another.

The pole sections 62 have open ends 67 at the bottom and at the top, allowing water to enter the telescoping pole when the telescoping pole 22 is underwater.

The frame 48 is mounted to the hull via supports 50. The supports 50 are brackets and are mounted to the underside 53 of the hull, and to a deck 18b of the vessel. A lower 15 end of the frame is mounted to the underside of the hull and the upper end of the frame is mounted to a deck of the vessel. The supports 50 may be connected to the hull near a bulkhead, creating extra stiffness. The supports 50 may also be connected directly to a bulkhead. During lowering and rising of the telescoping pole, noise and vibrations may occur. Isolation may be provided in order to prevent the occurring noise and vibration of the 20 anchoring device to spread throughout the rest of the vessel.

A drive in the form of a winch 80 is provided near the upper end of the telescoping pole 22. Other kinds of drives are also possible such as a hydraulic cylinder. The winch 80 is mounted to the frame 48. The winch comprises a line 82 which is connected at an end thereof to the innermost pole section 62e. The winch is connected to a control panel at the 25 bridge of the vessel. A sensor 83 is provided to sense the tautness of the line 82.

A hatch 56 is provided on the bottom side 53 of the hull. The hatch 56 is mounted on a rail or mounted to the hull via a hinge, and comprises a drive with a remote control. This allows the hatch to be opened from the bridge of the vessel. The hatch is constructed to slide away from the hole 58 to an open position, exposing a hole 58 in the hull through which the 30 telescoping pole 22 protrudes from the hull in the extended state.

The hatch 56 has the effect that the telescoping pole 22 is invisible in the retracted state and that the streamline of the hull is not disadvantageously affected by the anchoring device 20.

The frame 48 houses the telescoping pole 22 and has a height 55 which corresponds 35 to or is slightly greater than the height 57 of the telescoping pole in the retracted state and to the height 57 (or length) of each pole section 62.

-6-

In this embodiment, the height 57 of the telescoping pole in the retracted state is smaller than the vertical distance between the underside of the hull and the deck 18a. This allows the anchoring device to be mounted invisible from the outside, i.e. from the shore or from another vessel. This has the effect that the design of the vessel is not 5 disadvantageously affected by the anchoring device according to the invention.

Turning to figure 4, the forward anchoring device 20 is shown. The anchoring device 20 also comprises a frame 48, support 50, and a hatch 56. The forward anchoring device extends through a lower deck 18a, but does not extend above the deck 18b which is visible from the outside so that the anchoring device also remains invisible from the outside.

10 Turning to figure 5, a close-up of the telescoping pole 22 is shown. Two pole sections 62a, 62b are shown. The pole section 62a is the outermost and uppermost pole section and is connected to the frame 48 at an upper end thereof. Sliding guides 64 are mounted to the inner wall of each pole section 62. The sliding guides guide the telescoping movement of a pole section 62b which is provided inside the pole section.

15 At an upper end 69 of each pole section 62, a stop 70 is provided. The stop 70 is configured to engage the upper blocks 64 of the outer pole section, which blocks have a double function of 1) guiding the inner pole section and 2) functioning as a stop.

A fracture zone 60 is provided in the outer most pole section 62a. The fracture zone 60 is a zone which has a strength which is significantly smaller than the other part of the pole 20 section 62a. The fracture zone has a height 64 and extends around the circumference of the outermost pipe section 62a.

The reduction in strength may be created in several different ways, i.e. by a part of a pole section having a reduced wall thickness, or by perforations in the pole section in the circumference thereof, or by relatively weak bolts between two pole sections, or by a part of 25 the pole section being manufactured from a weaker material than the rest of the pole section, or by an explosive device mounted near the wall of a pole section, the explosive device being constructed and arranged to at least partially destroy the wall of a pole section when being exploded.

The fracture zone 60 is provided approximately halfway the length 57 of the 30 outermost pole section 62a. The height 64 of the fracture zone is approximately 30-70cm. The height 64 of the fracture zone is approximately 10-30 percent of the length 57 of the outermost pole section. The fracture zone 60 is out of the hull in the extended pole position.

The fracture zone 60 is constructed to break when a great force or moment is exerted on the telescoping pole 22. The force may be a horizontal force, a vertical force or a 35 combination thereof. It may also be a bending moment. With the fracture zone, it is ensured that the telescoping pole breaks at a predetermined force. If this force is chosen smaller than the maximum force that the hull of the vessel can take, damage from the hull due to great -7- due to great forces on the telescoping pole can be prevented. The telescoping pole will break before the hull undergoes a structural failure due to the load exerted on it by the telescoping pole.

5 Operation

In operation, when the captain or another person of the crew of the vessel desires to anchor the vessel, he searches for a suitable location which has a water depth that is equal to or smaller than the maximum extended length 33 of the telescoping pole. This search may be enabled by a depth sensor on board the vessel, or by a map indicating the local water 10 depth.

The yacht 10 is manoeuvred to this suitable location. Subsequently, the hatch is opened and the winch 80 is powered in order to extend the telescoping pole 22. When the telescoping pole contacts the seabed, the line 82 becomes slack. The sensor 83 senses this and the winch 80 is switched off. In another embodiment it is also possible that this event is 15 sensed visually, because the vessel 10 will no longer roll or will roll substantially less when the lower end 31 contacts the seabed.

During the lowering of the pole sections 62, water will enter the telescoping pole 22. The water may enter through the open ends of the pole sections 62.

All telescoping poles on board the vessel are extended to the seabed. It is possible 20 that the telescopic pole is pressed into the seabed over a certain distance.

A weathervane operation may be performed directly after the first pole contacts the seabed, in order to align the vessel with the prevailing wind and/or current. After the weathervane operation, the rest of the anchoring poles are extended.

The anchoring device according to the invention allows a simple anchoring 25 procedure.

When it is desired to leave the location, the telescoping poles 22 are retracted. The winch 80 is turned on and the pole sections 62a-62e are hoisted upward. During the retracting, the water inside the telescoping pole flows out of the retracting pole sections 62a-62e under the influence of gravity.

30 When the telescoping pole is entirely inside the hull, the hatch 56 is closed.

If due to an external cause the load on the anchoring device becomes too great, it is important that the hull of the vessel is not damaged, because this may cause the sinking of the vessel. In such a case, the anchoring device 20 breaks at the fracture zone 60. The telescoping pole 22 may be completely severed from the hull 15.

35 The fracture zone is in particular an advantage in aluminium vessels or vessels manufactured from a synthetic material, or more in general in lightweight vessels, such as planing vessels. These vessels are generally constructed with a hull 15 that has sufficient -8- strength to function as a hull but not much more than that, in order to keep the vessel as light as possible. The hull 15 is generally not capable of withstanding very large disruptive forces.

If for instance a large wave or another vessel would hit the vessel, the force of the 5 anchoring device 20 on the vessel 10 may become so great that the hull 15 of the vessel becomes damaged. This could potentially lead to the sinking of the vessel. In the embodiment having the fracture zone, the anchoring device would break, thereby sparing the hull from being damaged. Such an anchoring device can be referred to as a sacrificing anchoring device.

10 It will be obvious to a person skilled in the art that the details and the arrangement of the parts may be varied over considerable range without departing from the spirit of the invention and the scope of the claims.

Claims (16)

1. Vaartuig voorzien van een ankerinrichting (20), waarbij de ankerinrichting ten minste een telescoperende paal (22a; 22b) omvat die is verbonden met een romp (15) van het vaartuig, waarbij de telescoperende paal verlengbaar is tussen: - een ingetrokken toestand waarin de telescoperende paal in hoofdzaak is 5 ingetrokken in de romp van het vaartuig, en een verlengde toestand waarin de telescoperende paal zich vanuit de romp van het vaartuig naar beneden toe uitstrekt en is ingericht om met een onderste einde (31) van de telescoperende paal contact te maken met een zeebodem ten einde het vaartuig aan de zeebodem te verankeren. 10A vessel provided with an anchor device (20), wherein the anchor device comprises at least one telescoping pole (22a; 22b) connected to a hull (15) of the vessel, the telescoping pole being extendable between: - a retracted state wherein the telescoping pole is substantially retracted into the hull of the vessel, and an extended state in which the telescoping pole extends downwardly from the hull of the vessel and is arranged to have a lower end (31) of the telescoping pole to make contact with a seabed in order to anchor the vessel to the seabed. 10 2. Vaartuig volgens conclusie 1, waarbij de ten minste ene telescoperende paal is voorzien van een breukzone (60) die beduidend zwakker is dan de rest van de telescoperende paal, waarbij de breukzone is geconstrueerd om de telescoperende paal ten minste gedeeltelijk van het vaartuig af te laten breken wanneer een 15 belasting op de telescoperende paal een vooraf bepaalde limiet overschrijdt.The vessel of claim 1, wherein the at least one telescoping pole is provided with a fracture zone (60) that is significantly weaker than the rest of the telescoping pole, the fracture zone being constructed to at least partially release the telescoping pole from the vessel to break when a load on the telescoping pole exceeds a predetermined limit. 3. Vaartuig volgens conclusie 1, waarbij de breukzone zich bevindt op een afstand van tussen 0,01 - 0,2 keer de lengte (33) van de telescoperende paal, gezien vanaf genoemde romp. 20The vessel of claim 1, wherein the fracture zone is at a distance of between 0.01 - 0.2 times the length (33) of the telescoping pole as seen from said hull. 20 4. Vaartuig volgens conclusie 1, waarbij de telescoperende paal meerdere paalsecties (62a, 62b, 62c, 62d, 62e) omvat met verschillende diameters (65), waarbij de paalsecties coaxiaal zijn opgesteld en geconstrueerd zijn om ten opzichte van elkaar te telescoperen tussen de ingetrokken toestand en de verlengde toestand. 25The vessel of claim 1, wherein the telescoping pole comprises a plurality of pole sections (62a, 62b, 62c, 62d, 62e) with different diameters (65), the pole sections being arranged coaxially and constructed to telescope relative to each other between the withdrawn state and the extended state. 25 5. Vaartuig volgens een van de conclusies 2-4, waarbij de breukzone is verschaft in de buitenste paalsectie (62a).The vessel of any one of claims 2-4, wherein the fracture zone is provided in the outer pole section (62a). 6. Vaartuig volgens een van de conclusies 2-5, waarbij de breukzone is verschaft nabij 30 een bovenste einde (76) van de buitenste paalsectie (62a). 1 Vaartuig volgens een van de conclusies 2-6, waarbij de ankerinrichting een voorste - 10- telescoperende paal (22a) omvat die is gemonteerd nabij een boeg van het vaartuig en een achterste telescoperende paal (22b) die is gemonteerd nabij de achtersteven van het vaartuig.6. Vessel according to any of claims 2-5, wherein the fracture zone is provided near an upper end (76) of the outer pole section (62a). Vessel according to any of claims 2-6, wherein the anchor device comprises a front telescoping pole (22a) mounted near a bow of the vessel and a rear telescoping pole (22b) mounted near the stern of the vessel vessel. 8. Vaartuig volgens conclusie 1, waarbij de breukzone wordt gevormd door: 5. een deel van een paalsectie met een kleinere wanddikte, of perforaties in de omtrek van de paalsectie, of bouten tussen twee paalsecties, waarbij de bouten zwakker zijn dan de paalsecties, - een deel van de paalsectie is vervaardigd van een zwakker materiaal dan de rest van de paalsectie, of 10. een explosief dat is gemonteerd nabij de wand van de paalsectie, waarbij het explosief is geconstrueerd en opgesteld om de wand van een paalsectie bij ontploffing ten minste gedeeltelijk te vernietigen.A vessel according to claim 1, wherein the fracture zone is formed by: 5. a part of a pile section with a smaller wall thickness, or perforations in the circumference of the pile section, or bolts between two pile sections, the bolts being weaker than the pile sections, - a part of the pile section is made of a weaker material than the rest of the pile section, or 10. an explosive mounted near the wall of the pile section, the explosive being constructed and arranged around the wall of a pile section upon explosion. at least partially. 9. Vaartuig volgens een van de voorgaande conclusies, omvattende een voorste paal 15 (22a) die links of rechts van een middenvlak (30) van het vaartuig is gemonteerd en een achterste paal (22b) die aan de tegenovergelegen zijde van het middenvlak (30) van het vaartuig is gemonteerd.Vessel according to one of the preceding claims, comprising a front post 15 (22a) mounted to the left or right of a center plane (30) of the vessel and a rear post (22b) mounted on the opposite side of the center plane (30) ) of the vessel. 10. Vaartuig volgens een van de voorgaande conclusies, waarbij de ten minste ene 20 telescoperende paal is gemonteerd op een frame (48) en waarbij het frame is gemonteerd op de romp (15) van het vaartuig.10. Vessel as claimed in any of the foregoing claims, wherein the at least one telescoping pole is mounted on a frame (48) and wherein the frame is mounted on the hull (15) of the vessel. 11. Vaartuig volgens een van de conclusies 2-10, waarbij de breukzone zich in de ingetrokken toestand in de romp bevindt, en waarbij in de verlengde toestand de 25 breukzone zich buiten de romp bevindt.11. Vessel as claimed in any of the claims 2-10, wherein the fracture zone is in the hull in the retracted state, and in the extended state the fracture zone is outside the hull. 12. Vaartuig volgens een van de voorgaande conclusies, waarbij het vaartuig een jacht is.A vessel according to any one of the preceding claims, wherein the vessel is a yacht. 13. Vaartuig volgens een van de voorgaande conclusies, waarbij het vaartuig is geconstrueerd uit aluminium, of uit een synthetisch materiaal zoals met carbon versterkt epoxy of met glas versterkte epoxy. 1 Vaartuig volgens een van de voorgaande conclusies, waarbij in de ingetrokken 35 toestand de telescoperende paal een lengte heeft die kleiner is dan de verticale afstand tussen de onderzijde van de romp en het bovenste dek boven de -11 - telescoperende paal, en waarbij de telescoperende paal in de ingetrokken toestand onzichtbaar is vanuit een gezichtspunt boven het water.A vessel according to any of the preceding claims, wherein the vessel is constructed from aluminum, or from a synthetic material such as carbon-reinforced epoxy or glass-reinforced epoxy. 1 Vessel according to one of the preceding claims, wherein in the retracted state the telescoping pole has a length that is smaller than the vertical distance between the bottom of the hull and the upper deck above the telescoping pole, and wherein the telescoping pole pole in the withdrawn state is invisible from a viewpoint above the water. 15. Vaartuig volgens een van de voorgaande conclusies, omvattende een gat in de romp 5 waardoor de telescoperende paal in de verlengde toestand uitsteekt, en omvattende een breekbaar luik dat is ingericht om het gat af te sluiten wanneer de telescoperende paal zich in de ingetrokken toestand bevindt, zodanig dat in de ingetrokken toestand de telescoperende paal vanuit een gezichtspunt onderwater onzichtbaar is. 1015. Vessel as claimed in any of the foregoing claims, comprising a hole in the hull 5 through which the telescoping pole protrudes in the extended state, and comprising a breakable hatch which is arranged to close the hole when the telescoping pole is in the retracted state such that, in the retracted state, the telescoping pole is invisible from a viewpoint underwater. 10 16. Ankerinrichting voor een vaartuig, omvattende ten minste een telescoperende paal die is ingericht om te worden verbonden met een romp van het vaartuig, waarbij de telescoperende paal verlengbaar is tussen: - een ingetrokken toestand waarin de telescoperende paal in hoofdzaak is 15 ingetrokken in de romp van het vaartuig, en - een verlengde toestand waarin de telescoperende paal zich vanuit de romp van het vaartuig naar beneden toe uitstrekt en is ingericht om contact te maken met een zeebed met een onderste einde van de telescoperende paal teneinde het vaartuig aan het zeebed te verankeren. 2016. An anchor device for a vessel, comprising at least one telescoping pole that is adapted to be connected to a hull of the vessel, the telescoping pole being extendable between: a retracted state in which the telescoping pole is substantially retracted into the hull of the vessel, and - an extended state in which the telescoping pole extends downwards from the hull of the vessel and is arranged to make contact with a seabed with a lower end of the telescoping pole in order to connect the vessel to the seabed to anchor. 20 17. Werkwijze voor het verankeren van een vaartuig voorzien van een ankerinrichting, waarbij de ankerinrichting ten minste een telescoperende paal omvat die is verbonden met een romp van het vaartuig, waarbij de telescoperende paal verlengbaar is tussen: 25. een ingetrokken toestand waarin de telescoperende paal in hoofdzaak is ingetrokken in de romp van het vaartuig, en een verlengde toestand waarin de telescoperende paal zich vanuit de romp van het vaartuig naar beneden toe uitstrekt en is ingericht om met een onderste einde van de telescoperende paal contact te maken met een zeebed teneinde het 30 vaartuig aan het zeebed te verankeren, de werkwijze omvattende: o het positioneren van het vaartuig in het gebied waar de waterdiepte kleiner is dan de verlengde lengte van de telescoperende paal, en o het verlengde van de telescoperende paal in de verlengde toestand totdat het 35 onderste einde van de telescoperende paal contact maakt met een zeebed, waarbij het vaartuig wordt verankerd. 5 - 12-17. Method for anchoring a vessel provided with an anchor device, the anchor device comprising at least one telescoping pole connected to a hull of the vessel, the telescoping pole being extendable between: 25. a retracted state in which the telescoping pole is substantially retracted into the hull of the vessel, and an extended state in which the telescoping pole extends downwardly from the hull of the vessel and is arranged to contact a sea bed with a lower end of the telescoping pole in order to 30 to anchor the vessel to the seabed, the method comprising: o positioning the vessel in the area where the water depth is less than the extended length of the telescoping pole, and o the extension of the telescoping pole in the extended state until it is 35 bottom end of the telescoping pole makes contact with a sea bed, anchoring the vessel erd. 5 - 12 18. Werkwijze volgens conclusie 17, waarbij de telescoperende paal een breukzone omvat en waarbij de telescoperende paal bij de breukzone breekt ten gevolgde van een belasting die door een zeebed op de telescoperende paal wordt uitgeoefend.The method of claim 17, wherein the telescoping pole comprises a fracture zone and wherein the telescoping pole breaks at the fracture zone due to a load exerted on the telescoping pole by a sea bed.