DE102021002033A1 - Single fluke anchor stopping in front of a fairlead - Google Patents

Abstract

This disclosure for the application for the grant of a patent is about a single-flank recreational boat anchor - shown here as an example in the form of a bow anchor - whose shaft has been modified in such a way that it can be clamped in front of an anchor fairlead or suspended in a short anchor tube without that the shaft or the anchor shackle comes into contact with the chain wiper or the tip of the fluke hits the ship's side and without a special formation in the freeboard of the watercraft being necessary for this.

Description

Conventional recreational boat anchors with a movable or rigid fluke, such as the CQR anchor invented around 1930, are usually optimized to be driven lying in a bow roll. They have an elongated shaft. Such yacht anchors have a shape that allows you, despite their low dead weight, to drive deep into various anchoring grounds and to anchor the vehicle to be anchored as securely and permanently as possible, even in twisting winds and currents. A minimum length of the anchor shaft is usually required for this, which predestines these anchors for storage on the bow roller, since there is usually sufficient space for this on the foredeck.

Larger ships and yachts often drive their anchors to the side or in the middle of the bow by pulling the anchor chain and anchor wiper in front of an anchor fairlead. This way of driving the anchor requires less space on deck than anchors driven in a bow roller, especially as the size of the ship and anchor increases. The patent anchor or a plate anchor with a short shank is usually used for this. Such anchor constructions are distinguished by the fact that a considerable minimum weight is required here in order to be able to anchor the anchor securely even on overgrown or hard ground.

• Schiffe dieser Größenordnung fahren üblicherweise Hauptanker hoher Haltekraft mit einem Gewicht zwischen 50 und 110 kg. Wird ein solcher Anker in Form eines einflunkigen Sportbootankers in der Bugrolle gefahren, so ist dieser bei entsprechender Schiffsgröße zu schwer, um auf dem Vorschiff händisch klariert zu werden. Bei diesen Ankergrößen ist der Ankerschaft einflunkiger Sportbootanker auf den vielen Schiffen entsprechender Größe zu lang, um zwischen Bugrolle und Ankerwinsch auf dem Vorschiff gestaut zu werden oder um vor einer Klüse ruhend aus dem Ankerrohr heraus gefahren zu werden.

Larger yachts with a hull length of approx. 16 meters or 60 tons water displacement up to approx. 28 meters length or 165 tons water displacement as well as corresponding ships regularly face the following problem when choosing an anchor:

• Ships of this size usually use main anchors with a high holding power, weighing between 50 and 110 kg. If such an anchor is driven in the bow roller in the form of a single-handle sports boat anchor, it is too heavy for a ship of this size to be cleared by hand on the forecastle. With these anchor sizes, the anchor shaft of single-flank recreational boat anchors on many ships of this size is too long to be stowed between the bow roller and anchor winch on the forecastle or to be driven out of the anchor tube while resting in front of a fairlead.

In principle, it would be advisable for yachts of this size to use a patent anchor (see 4 ) or driving a short-shafted plate anchor out of a fairlead. This would eliminate the problems of clearing and stowage in the bow roller. With the anchor weights relevant in this context, patent and plate anchors have the property of reliably digging into soft anchoring ground and developing a high holding power even in torsion winds and tides. In difficult anchoring grounds such as seagrass meadows or scree, patent anchors and plate anchors in the relevant weight classes from 50 kg to 110 kg are difficult to dig in and easily loosen again in shifting winds or currents without reliably digging themselves in again.

So there is an in-between size of yacht on which single-shaft sport boat anchors in the corresponding anchor weight class are difficult to handle, patent anchors and short-shafted plate anchors in the appropriate weight class do not yet have sufficient weight to anchor the ship securely even under difficult conditions.

character list

• 1 (Stand der Technik) zeigt einen einflunkigen Sportbootanker, der in einer Bugrolle (BR) liegt. Der Anker wird hierbei so gehalten, das die Flunke (FL) auch bei Wellengang nicht an den Schiffsrumpf (SR) schlägt und der Schaft (SF) des Ankers nicht in die Kettenwinsch (KW) gerät. Als Beispiel wurde hier ein Bügelanker gewählt, unschwer an dem charakteristischen Bügel (BG) zu erkennen.
• 2a (Stand der Technik) zeigt verschiedene weit verbreitete Modelle von einflunkigen Sportbootankern. Alle abgebildeten Modelle zeichnen sich dadurch aus, auch auf ungünstigen Ankergründen guten Halt zu gewährleisten. Bei den abgebildeten Ankern handelt es sich um einen Bügelanker (BA), einen Spade Anker (SA), einen CQR Anker (CA) sowie um einen Delta Anker (DA).
• 2b zeigt verschiedene Modelle von einflunkigen Sportbootankern, bei denen jeweils der Schaft (SF) um mehrere Stopper (SP) im Sinne dieser Offenbarung ergänzt wurde.
• 3 (Stand der Technik) zeigt einen Patentanker (PA), aus einer Klüse (KL) an einer Kette vor einem Schiffsrumpf (SR) hängend.
• 4 zeigt einen vor einer Klüse stoppenden, einflunkigen Sportbootanker, hier am Beispiel eines im Sinne dieser Offenbarung weiterentwickelten Bügelankers. Zu sehen sind die Bestandteile Flunke (FL), Schaft (SF) sowie der charakteristische Bügel (BG) und die Stopper (SP), hier ausgeführt als halbierte elliptische Scheibe.
• 5 zeigt einen vor einer Klüse stoppenden, einflunkigen Sportbootanker im technischen Zusammenhang. Der Schaft (SF) des Ankers steckt in einem Kettenrohr (KR). Der Anker wird im Kettenrohr (KR) durch den Zug der Kettenwinsch (KW) und durch ein lösbares Verklemmen der Stopper (SP) fixiert. Die Stopper verhindern, dass der Schaft (SF) oder der Ankerschäkel (AS) in die Kettenwinsch (KW) gezogen werden und drehen den Anker gleichzeitig so, dass die Spitze der Flunke (FL) nicht an die Bordwand schlagen kann.
• 6 zeigt verschiedene Ausführungsformen der Stopper (SP) im Sinne dieser Offenbarung, die jeweils an einen Schaft (SF) angebracht sind. Der Schaft (SF) ist hierbei im Anschnitt abgebildet. Die abgebilteten Ausführungsformen sind Beispielhaft und beschränken nicht den Umpfang dieser Offenbarung.

The drawings described herein are for the purpose of illustrating selected embodiments only and not all possible implementations, and are not intended to limit the scope of the present disclosure.

• 1 (Prior art) shows a single-fluke recreational boat anchor that is in a bow roller (BR). The anchor is held in such a way that the fluke (FL) does not hit the ship's hull (SR) even when there are waves and the shaft (SF) of the anchor does not get caught in the chain winch (KW). A stirrup anchor was chosen as an example, easily recognizable by the characteristic stirrup (BG).
• 2a (Prior Art) shows various widely used models of single-fluke recreational boat anchors. All models shown are characterized by the fact that they ensure a good hold even on unfavorable anchoring grounds. The anchors shown are a stirrup anchor (BA), a spade anchor (SA), a CQR anchor (CA) and a delta anchor (DA).
• 2 B shows various models of single-flank sport boat anchors, in each of which the shaft (SF) has been supplemented by several stoppers (SP) within the meaning of this disclosure.
• 3 (Prior Art) shows a patent anchor (PA) hanging from a fairlead (KL) on a chain in front of a ship's hull (SR).
• 4 shows a single-flap sport boat anchor stopping in front of a fairlead, here using the example of a bow anchor further developed within the meaning of this disclosure. You can see the components fluke (FL), shaft (SF) as well as the characteristic bracket (BG) and the stop per (SP), executed here as a bisected elliptical disc.
• 5 shows a single fluke anchor stopping in front of a fairlead in a technical context. The shaft (SF) of the anchor is in a chain tube (KR). The anchor is fixed in the chain tube (KR) by pulling the chain winch (KW) and by releasably clamping the stopper (SP). The stoppers prevent the shaft (SF) or the anchor shackle (AS) from being pulled into the chain winch (KW) and at the same time turn the anchor so that the tip of the fluke (FL) cannot hit the ship's side.
• 6 shows different embodiments of the stopper (SP) within the meaning of this disclosure, which are each attached to a shaft (SF). The shank (SF) is shown in section. The illustrated embodiments are exemplary and do not limit the scope of this disclosure.

Reference List

AS

anchor shackle

B.A

bow anchor

bg

hanger

BR

bow roll

APPROX

CQR anchor

THERE

Delta anchor

FL

fluke

cl

fairlead

KR

chain pipe

week

chain winch

SA

Spade anchor

SF

shaft

SP

stopper

SR

hull

Detailed description of the invention:

The single-handle sport boat anchor that stops in front of a hawse-hole proposed here combines the advantages of many single-handle sport boat anchors - being able to reliably grasp and, if necessary, reliably dig itself in again, even with weights under 250 kg in difficult anchoring grounds such as scree or seagrass meadows in twisting winds and currents - with the simple one Handling of a patent anchor driven out of a fairlead or a short-shafted plate anchor. For weight classes from 50 kg, driving out of a fairlead is clearly preferable to driving the anchor out of a bow roller. The length of the shaft and the high weight make it significantly more difficult to clear single-fluke anchors for sport boats weighing more than 50 kg by hand.

in the in 4 In the example shown, the shaft of a classic stirrup anchor is supplemented by two stoppers.

In these cases, or if the anchor is to be driven out of a fairlead on smaller watercraft for aesthetic reasons, a single-float anchor stopping in front of a fairlead can help. Preferably, this is in the form of a stirrup anchor (see German Patent No. DE 36 39 023 ) implemented with a modified shaft, since this type of anchor digs in a special way on soft ground (mud and soft sand) as well as on hard and overgrown ground and gives the ship to be anchored a secure hold under changing conditions. Any other form of single fluke recreational boat anchor is also suitable as a base for a fairlead stopping single fluke recreational boat anchor (See 2a and 2 B) .

The anchor can be driven in front of a side or bow fairlead instead of a patent anchor. By adapting the stoppers to the diameter of the fairlead, the anchor stops when retrieved in such a way that the long shaft and anchor shackle do not get caught in the chain winch. (Please refer 5 .)

By adapting the position, shape and, if necessary, the number of stoppers to the length of the chain tube, the position of the winch and the shape of the fairlead, the anchor can be brought into a preferred position on the fairlead and a secure and detachable jamming in the fairlead can be achieved ensure the power of the anchor chain winch. At the same time, the position, arrangement and shape of the stoppers can prevent the fluke tip of the sports boat anchor from hitting the ship's side when there are waves.

The stoppers, which make up the principle of the single-float anchor stopping in front of a fairlead, can vary in shape, orientation and number depending on the structural conditions of the ship used. A correspondingly modified shaft shape (integrated stopper) can also be used for the single-float anchor that stops in front of a fairlead. Preferably halved round or elliptical discs are used, but also round or elliptical bows, circular sections, straight or hook-shaped pins or corresponding modifications of the conventional shaft shapes correspond to the principle of the single-float anchor stopping in front of a fairlead.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 3639023 [0009]

Claims (4)

Recreational boat anchor with a fluke and a straight or curved shank, where the shank is supported by one or more of bisected elliptical or circular discs, elliptical or circular shackles, sections of a circle, pins, hooked discs or shackles, or similarly shaped lugs or corresponding modifications of the shank so was designed so that the shaft is stopped at a clearly defined length when entering a fairlead. (See also 5-6 ) sports boat anchor shafts claim 1 , straight or curved shanks of recreational boat anchors with a fluke, the shank being so designed by one or more of bisected elliptical or round discs, elliptical or round shackles, sections of a circle, pins, hooked discs or shackles or comparably shaped lugs or equivalent modifications of the shank that the shaft is stopped at a clearly defined length when entering a fairlead. (See also 5-6 ) Approaches to recreational boat anchors claim 1 , which shape the shaft of a recreational boat anchor by means of one or more elliptical or round discs, elliptical or round shackles, segments of a circle, pins, hook-shaped ending discs or shackles or similarly shaped attachments in such a way that the shaft is positioned on a clearly defined path when it is inserted into a fairlead length is stopped. (See also 5-6 ) Modification of the shaft of recreational boat anchors claim 1 , in the form of elliptical or round discs cut in half, elliptical or round hoops, circular sections, pins, hook-shaped ending discs or hoops or similarly shaped modifications which shape the shaft in such a way that the shaft is stopped at a clearly defined length when it is run into a fairlead .

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