EP1382523A1 - Carrying and pivoting arm with wide range of use (davit, gangway) - Google Patents

Abstract

In metal construction, comprising separate components, the on-board mounting (22) carries a support arm (20) and a moving- or drive arm (21).

Description

1) Technical field

The invention presented here comes from the field of "technical Accessories "for watercraft

2) State of the art

The davit is traditionally used to store a dinghy, see Fig. 1. A solid structure stands behind the boat hull over water and allows the dinghy (3) to be lowered vertically. There are different Disadvantages of this construction: On the one hand, the davit is permanently above the Ship's stern out and thus increases the cost of the berth, which after the Total length is calculated; furthermore the davit is in danger of being damaged be it through other ships or maneuvering in port. And nevertheless there is not even an additional benefit here Would mitigate disadvantages.

Fig. 2 shows the successful attempt to add value enable: On the davit (2) is an upstanding arm (4) attached, which holds the gangway (5). The lowered dinghy (3) is located under the gangway and over the mostly dirty harbor water, but bumps not against the quay wall (6).

Now there are attempts to avoid the disadvantages and at the same time the to motorize the entire process of lifting and lowering. This is especially necessary if no small inflatable boat is on the davit hangs, but a larger one with an engine or even a dinghy Plastic with motor.

The registration (Fig. 3) 299 22 612 and 199 63 057 shows one Attempt. Two parallel arms are driven together and hold one horizontal support arm. Here too, the construction stands far above the rear out and is at risk of an accident. In addition, the drive is under the Boat or located under the stern platform. A constant source of Repairs (water penetration, corrosion) are pre-programmed. Fig. 4 shows the same idea on a sailing yacht with a negative stern. Appears here the idea especially as a foreign body because the support arms protrude far. Also The traditional davits are considered "navigable", while this idea is the round one Shape of a yacht, its appearance is not exactly beautified.

The registration (Fig. 5) 42 09 090 A1 also represents only an insignificant one Improvement. Here vertical rails (13) run at the rear of the Motor yacht and lead the davits (4). Aside from that, this idea is on If sailing yachts are not to be used, parts protrude into the water. For you can algae or similar get caught and jeopardize its safe function. Furthermore, the vertical guides do not appear to be visually too Fit motor yachts. On the other hand, there is a swing of the Dinghies allows (Fig. 6) and thus the total length of the ship only by increases a required minimum. If a support arm is used as a gangway (5) worked, an additional gangway boom (12) can make the transition Lighten country (6).

Another possibility is shown in Fig. 7, registration 196 02 331 A1. Also here two parallel beams by a hydraulic system or by one Threaded rod (14) moves. The relative proximity to the ship is disadvantageous bought: The drive is located in the stern directly in the area of the waterline (Risk of corrosion, malfunctions) and the support arms are also constantly far back over. There is also the disadvantage that the support arms probably hard to see or impossible to see when maneuvering the yacht are because they are very deep. Even traditional davits have an advantage here and technically much easier and cheaper to implement.

Finally, Fig. 8 shows the application 201 17 693.9, in which it is in It is essentially about the idea of a right-angled bracket. This Angle bracket (15) is driven on board and raises or lowers the horizontal davit. Here is the example on a sailing yacht with shown negative tail. The dinghy is not in the caught position very far, but very high above the stern. The wind resistance will be large, there is little risk of waves. The onboard side Fastening, at the same time drive does not appear to be well thought out in the implementation or very sensitive .. Here greater forces are generated or redirected and the bracket must be reliable even in rough seas and storms.

Fig. 9 shows the same construction: The complete dinghy is standing permanently behind the stern. This means that the above Disadvantages too significant accepted higher costs.

Here, too, it looks like the complex construction is not essential Improves the situation and does not become "navigable" in the Integrates the entire construction. A foreign body will remain.

3) The problem underlying the invention

As we saw in the "state of the art", it is very difficult to combine as many advantages as possible in one device.

• das Anheben und Absenken eines Gegenstandes (hier: Beibootes) vom Schiff, mit möglichst wenig über den Schiffsrand ragenden Teilen,
• dass sich die gesamte Anlage über Wasser befindet und nicht permanent ins Wasser taucht, um Korrosion an betriebswichtigen Teile zu verhindern,
• dass das aufgeholte Beiboot vom Schiffsführer zu sehen ist,
• dass die Anlage für Motor- und Segelyachten geeignet sein muss,
• dass ein Zusatznutzen (Gangway, Badeleiter, Kran...) realisierbar sein muss,
• dass ein Kompromiss gefunden werden muss bei der Lagerung des hochgeholten Beibootes zwischen der zu tiefen Position (Gefahr durch Wellenschlag) und der zu hohen Position (erhöhter Windwiderstand),
• dass möglichst keine Antriebsteile der Witterung ausgesetzt werden,
• dass die Anlage optisch so gestaltet sein muss, dass sie keinen Fremdkörper an einer Yacht darstellt,
• dass die gesamte Anlage einen guten Kompromiss zwischen den Faktoren Kosten/Nutzen/Funktion(en)/Optik darstellen muss,
• dass die Anlage an die Gegebenheiten des jeweiligen Schiffes angepasst werden kann, ohne dass die Funktion darunter leidet, und zuletzt
• dass nicht nur Funktionsvariationen (s.o.), sondern auch Erweiterungen, die hier noch nicht bedacht sind, grundsätzlich möglich sein müssen (Montage auf Drehteller, Konsolenmontage.....)

The problem is

• the lifting and lowering of an object (here: dinghies) from the ship with as few parts as possible protruding over the ship's edge,
• that the entire system is above water and not permanently immersed in the water to prevent corrosion of parts that are important for the operation
• that the recovered dinghy can be seen by the skipper,
• that the system must be suitable for motor and sailing yachts,
• that an additional benefit (gangway, bathing ladder, crane ...) must be realizable,
• that a compromise must be found when the dinghy is being raised between the position that is too low (danger from waves) and the position that is too high (increased wind resistance),
• that no drive parts are exposed to the weather,
• that the system must be optically designed so that it does not represent a foreign body on a yacht,
• that the entire system must represent a good compromise between the factors cost / benefit / function (s) / optics,
• that the system can be adapted to the conditions of the respective ship without the function suffering and last
• that not only functional variations (see above), but also extensions that have not yet been considered here must be possible in principle (mounting on a turntable, mounting on a console .....)

5) Commercial application

The invention presented here meets a gap in the market and represents the overall best compromise solution. If you look at the list of "underlying Problems "used in the implementation, all previous ones appear Solutions as unsuitable. Therefore, the invention presented here be economically successful: the sum of the advantages speaks for itself.

6) Beneficial effect

• Abb. 10 zeigt einen einzelnen Arm als Davit.
• Abb. 11 zeigt den Davit Abb. 10 mittig geklappt und damit nur halb so lang.
• Abb. 12 zeigt verschiedene Erweiterungen des Fußes in Anpassung an die Gegebenheiten an Deck des jeweiligen Schiffes.
• Der Winkel zwischen der Oberseite des Tragarms (20,immer horizontal) und der Befestigungsseite des Montagearms (22) kann bei der Fertigung gewählt werden.
• Keine Teile befinden sich permanent im Wasser.
• Die Anlage ist variabel für Fahrzeuge, Motor- und Segelyachten geeignet.
• Optisch passt sie sich gut an die Form der Schiffe an; Edelstahl V4A als Material sieht hochwertig aus.
• In der derzeitigen Ausführungsvariante der Erfindung wird ein hydraulischer Antrieb vorgeschlagen. Die dazu erforderliche Pumpe befindet sich geschützt unter Deck.
• Durch die Verlegung des Hydraulikschlauchs kann die Pumpe platzsparend gestaut werden.
• Wird eine Doppelanlage gebaut, (Abb. 13), kann sie als Davit verwendet werden. Dazu muss eine entsprechende Rumpfaufhahme auf der Oberseite der Tragarme (20) befestigt werden.
• Die Länge des Antriebsarmes kann je nach Gegebenheiten an Bord der Yacht unterschiedlich sein.
• Weitere Optionen sind offen, sodass das System entwicklungsfähig ist und bleibt (Abb. 13a, 23, 24,25).
• Mechanisch per Drahtsein kann das System im Notfall oder permanent betrieben werden.

The invention presented here has a number of advantages, which are described in more detail here:

• Fig. 10 shows a single arm as a davit.
• Fig. 11 shows the davit Fig. 10 folded in the middle and thus only half as long.
• Fig. 12 shows various extensions of the foot to adapt to the conditions on the deck of the respective ship.
• The angle between the top of the support arm (20, always horizontal) and the mounting side of the mounting arm (22) can be selected during manufacture.
• No parts are permanently in the water.
• The system is variably suitable for vehicles, motor and sailing yachts.
• Visually, it adapts well to the shape of the ships; Stainless steel V4A as a material looks high quality.
• In the current variant of the invention, a hydraulic drive is proposed. The pump required for this is protected under deck.
• The pump can be stowed away to save space by laying the hydraulic hose.
• If a double system is built (Fig. 13), it can be used as a davit. To do this, a corresponding fuselage holder must be attached to the top of the support arms (20).
• The length of the drive arm can vary depending on the conditions on board the yacht.
• Further options are open, so that the system is and remains viable (Fig. 13a, 23, 24, 25).
• The system can be operated mechanically by wire in an emergency or permanently.

7) One way of carrying out the invention

The invention is illustrated by the illustrations below described in more detail.

Unless otherwise stated, all parts are made from Stainless steel, V4A, built. This material meets the requirements the strength, quality and durability compared to the salty air.

The onboard mounting arm Fig. 14 (22) is used as a base plate with two Side panels made. The round opening corresponds in diameter the outer diameter of the rotary tube (33), which is welded here later becomes.

As can be seen in Fig. 14, the middle one is located here Arm (21) within the lower mounting arm (22) and upper support arm (20).

The upper support arm (20) is also an open at the bottom Stainless steel construction, the components of which are shown in Fig. 16 a - c are. The opening for welding the upper axis (33) is as on treated lower part.

Fig. 13 shows an overall view of the system on a boat stern assembled. Here it is made clear once again that the length of the middle so-called movement arm depends on the construction of the ship (height above the waterline, angle of rotation, assembly on board.

In the further procedure, we assume the prerequisite that the middle movement arm is built as shown in Fig. 14/15 shown.

17 and 18 becomes a stable, rounded one Stainless steel box built and with the upper and lower hole for the Provide axis (33). The mounting brackets (47) are precisely positioned welded after they were previously drilled (for 48). At a The hole for the hydraulic connecting hose is a sensible place drilled and provided with an edge protection.

The pipe assembly is now being prepared. The mounting tube (42) is cut to length and provided with a wide slit (see Fig. 19). Then it is centered around the hole (slot after welded on top. Now you can the ball bearing (40) and that Insert the rotary tube (33). The chain connection (46) can now on the Axle to be welded inside the slot. The position is off Fig. 17 a.

The lower rotary tube is moved accordingly, towards it make sure that the chain connection is on the other side. Now the T-piece (45), an industrial finished product, is similar to that Hydraulic cylinder, mounted inside the box. The Link chains and the hydraulic hose are now attached and brought the cylinders into position as shown in Fig. 17 a.

Now the cover (38) can be welded on. It is divided into three parts (see Fig. 18) to weld the tube (42) and an inside To allow welding of the round top and bottom edges. Now the lower tube is fitted into the mounting foot and in Proper position, the movement tube (33) can now in the round Opening to be welded.

The upper support arm is brought into a horizontal position and also on welded upper tube (33).

Now the finished construction can be screwed on board; now the hydraulic hose (39) must still be connected to the pump (N.N.) and hydraulic oil.

8) How it works

Fig. 22 shows the exemplary swivel range of this support arm. Under For example, an inflatable boat could hang from the support arm. It is from the upper position (storage) slightly outwards, following the swivel radius, moved down to the waterline and dumped on the water.

This movement takes place by means of hydraulically generated force. Fig. 17 represents represent the two end positions. The force of the cylinder makes the two-part revolving chain (43) moves. These take the two chain connections (46) necessarily with and thereby move both tubes in a uniform manner (33), both with the support arm, as well as with the onboard side Mounting bracket are connected. Due to the non-positive connection the movement can be stopped in any position because the cylinders stay in the corresponding position.

The chain connections (46) move in opposite directions (here by 180 °) on the Pipes inside a slot. The respective end positions of the cylinders and the chain connections are shown in Fig. 17 A and B.

In cross section for clarification, this is again in Fig. 19 shown.

9) Sources, drawings Reference number list in Figures 1 to 14

1-

hull

2

davit

3

dinghy

4

Beam

5

gangway

6

Moles on land

7-

waterline

8th-

rope

9-

parallel carrier

10-

horizontal arm

11-

drive

12-

Extension for gangway

13-

U-rail

14-

Spindle or hydraulics

15

Angle bracket 90 °

16-

On-board linkage

17-

N. N.

18-

N. N.

19-

N. N.

20

Beam

21-

drive arm

22-

mounting arm

Reference numerals in Figures 15 to 25

30

footplate

31-

side panel

32

side panel

33-

rotary tube

34-

bewegungsarm

35-

Arm-side part

36-

Arm-side part

37-

Bracket shell

38-

Lid, three parts

39-

hydraulic hose

40

ball-bearing

41-

N. N.

42-

mounting tube

43-

Chain

44-

hydraulic cylinders

45

Tee

46-

Chain connection to 33

47-

bracket

48-

mounting axis

49-

hydraulic pump

50

On-board wire rope

51-

Seilwinsch

52-

idler pulley

List of pictures

Fig. 1:

State of the art: standard davit on the stern of a yacht

Fig. 2:

State of the art: Improved davit with additional functions (Gangwayhalterung)

Fig. 3:

State of the art: hydraulic davit

Fig. 4:

State of the art: hydraulic davit of Fig. 3 on a sailing yacht

Fig. 5:

State of the art: horizontal davit

Fig. 6:

State of the art: Davit of Fig. 5, foldable dinghy

Fig. 7:

State of the art: Hubdavit

Fig. 8:

State of the art: Angle beam davit at the stern of a sailing yacht

Fig. 9:

State of the art: Winkelträger-Davit (Fig. 8) on a motor yacht

Fig.10:

Invention: support arm as gangway, perspective sketch

Fig. 11:

Invention: Foldable davit in side view

Fig. 12:

Invention: Various on-board mounting options

Abb.12a:

See fig. 12

Fig.13:

Invention: Use as a davit (two parallel support arms)

Fig.13a:

Invention: Combination: gangway / davit through rotatable parts tread

Fig. 14:

Invention: side view as a principle representation

Fig.15:

Invention: side view, more detailed

Fig.16:

Invention: details of the support arm (a - c)

Fig.17:

Invention: Interior view of the support arm, manufacturing possibility

Fig.18:

Invention: Perspective view of Fig. 17

Fig.19:

Invention: cross section through a rotary tube combination

Fig.20:

Invention: cut through the rotary tube combination, bewegungsarm

Fig.21:

Invention: rotating and mounting arm, perspective

Fig.22:

Invention: Upper and lower end positions with swivel radius

Fig.23:

Invention: Other uses

Fig.24:

Invention: Design variant: assembly on a turntable

Fig.25:

Invention: Movement by on-board wire rope

Swell:

Fig. 1 and 2:

Catalog 2002 from the company Edelstahl-Haese, Woltersdorf

Fig. 3 and 4:

Patent publication

Fig. 5 and 6:

Patent publication

Fig. 7:

Patent publication

Fig. 8 and 9:

Patent publication

Claims (9)

The invention is a metal structure, individually or in pairs is arranged for lifting and lowering objects or / and People on or on suitable vehicles (here: boat) or platforms, which is characterized by a multi-part construction with a support arm (20), the movement arm (34) and the on-board bracket (22), The drive (s) integrated in a component for movement, whereby the support arm (20) in one embodiment variant is not always horizontal must remain, but can be moved independently, A movement of the axes of rotation used in the movement arm (34) in Rotation, Different versions of the integrated drive, be it hydraulic, electrical or mechanical with chain, spindle, threaded or belt-shaped power transmission, the axis-side Recording must be designed appropriately, The constant locking of the movement arm in every conceivable Intermediate stage, not only in the respective upper and lower end position, also when using external drive means (Fig. 25), The free determination of the swivel angle and the dimensions of the components, too larger or smaller than in the patent application (Fig. 22), The different possible uses (Fig.13a, 23 a - c, 24) using pertinent brackets and rotatable mounts (Fig. 23 d) for storing objects (Fig. 23 b), The possibility of using different brackets (22) adapted to the stern of the boat and in every possible angle Horizontal, Fig.12.12a. The free determination of the position of the movement arm (21) on the on-board mounting bracket (22), the movement arm in a Design variant can also be in several parts.

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