DE9002191U1 - Device for hauling a boat - Google Patents

Description

Shipyard and boatyard February 21, 1390

Fr. Schweers GmbH & Co. KG

D-2876 Berne 2
SWE39.GlA

Device for hauling a boat

Description

The invention relates to a device of the type specified in the preamble of claim 1.

Such a device for completely pulling a daughter or dinghy into a boat storage space is

SWE39.GlA Sheet 2

Sea rescue cruisers. Guide means are used to support and guide the daughter boat horizontally and vertically within the boat's storage space, as well as a hoisting rope that can be moved by a drive means to move the boat when it is pulled up. A two-part detachable coupling is also arranged between the hoisting rope and the daughter boat, with a first part of the coupling being firmly connected to the daughter boat and another part to the hoisting rope. The motorized daughter boat is lifted up or lowered into the water from the rear of the sea rescue cruiser during the loading process. During the hoisting process, a rear hatch with rollers folds down so far that the daughter boat can drive over it under its own power. The daughter boat is now at least partially in the boat's storage space and is then manually pulled up with a hoisting rope.

A crew member connects the two parts of the coupling and then has to leave the area of the boat's storage space. The propulsion system , which retracts the hauling rope, now pulls the daughter boat ,1 completely into the boat's storage space, with the boat's keel

■ is on a roller track and the hull of the daughter boat

is held in a predetermined position by lateral guide devices.

²⁵

% The well-known device for hauling a daughter boat

]'■. has the disadvantage, however, that the device is very complex

T. dig is built and an inappropriate catch-up process

Simply attaching the haulage rope to the daughter boat by hand is very time-consuming and cumbersome.

Furthermore, the daughter boat will be in I

SWE39.G1A Sheet 3

held in an unfavourable position, as it is only partially in the boat's storage space during the hauling process when the hauling cable is connected to the daughter boat. Only then can the daughter boat be fully hauled in.
5

The invention is based on the task of changing the design of a device of the type mentioned above so that the boat to be picked up can be automatically connected to the conveyor device. Furthermore, this should enable a continuous hauling process.

This object is achieved with the characterizing features of claim 1.

The invention is based on the knowledge that the boat is held in a predetermined position or guided in a predetermined direction by the guide devices when it is driven into the boat storage space by its own drive.

This means that both the connecting means on the conveying means and the connecting means on the boat can be arranged and designed in such a way that they engage with each other and lock automatically when the boat is brought in. The part of the connecting means connected to the conveying means is provided in a position before the boat is brought up, which is initially passed or grasped by the part of the connecting means connected to the boat when the boat is brought into the boat storage space under the influence of the guide means, and are thus automatically connected to each other. At the same time, a freewheel arrangement is provided between the drive and

SWE39.G1A Sheet 4

at least the part of the connecting means that is firmly connected to the boat is provided, which allows a relative movement between the boat and the propulsion means corresponding to a movement of the boat that overtakes the propulsion means in the retraction direction, but creates a propulsion connection in the case of slower movement. The two parts of the connecting means engage with each other and lock automatically.

It is particularly advantageous that the boat is continuously hauled in as quickly as possible and using its own thrust. This advantageously reduces the maximum forces and moments that occur due to the lack of starting load for the drive. Furthermore, the hauling process is independent of the sea state thanks to the device. The possible sources of danger for the crew are reduced by the inventive design of the device, since no crew member has to climb into the boat's storage space as an assistant to attach the conveyor device.

In particular, the following advantageous further training courses are favorable:

The freewheel arrangement can be inserted into the device according to the loads and the spatial conditions. On the one hand, the freewheel between the drive means and the conveyor means is preferably provided as a Kletran roller freewheel; on the other hand, a carriage provided with its own guide, firmly connected to the conveyor means or designed to be connectable, is designed as

SWE39.G1A Sheet 5

Tiiger for the second part of the connecting means. The freewheel arrangement is optionally arranged in the manner already mentioned and/or between the carriage and the conveyors and/or the boat and the carriage. The carriage is designed to be movable on wheels along the conveyors on the floor of the boat storage space and is essentially made up of two arms arranged along the conveyors. The carriage improves the guidance stability when hauling up the boat and shifts the weight of the connecting means from the conveyors to the carriage. This advantageously relieves the load on the conveyors.

By providing several second parts of the connecting means that are firmly connected to the conveying means of the conveying arrangement, the freewheel arrangement is designed in such a way that the first parts of the connecting means engage in the corresponding second parts of the connecting means as the relative movement of the boat and the conveying means approaches. This type of freewheel design is simple and easy to maintain, since the wearing parts are directly accessible and arranged so that they can be easily replaced.

The first part of the connecting means is designed in the form of latching tabs, which are rounded and undercut on the free edges. This makes it easy to connect and lock the second parts of the connecting means to the first parts. Furthermore, the thrust and tensile forces that occur when the ^boat is pulled in are transferred favorably from the conveying means to the boat. The latching tabs are essentially in

SWE39.G1A Sheet 6

Arranged lengthwise along the boat, which only slightly increases the boat's flow resistance.

The second parts of the connecting means consist of two Z spring-loaded pivot levers, arranged one behind the other in the longitudinal direction, each with a bevel. This allows the latching tabs to be pulled over the bevel and then snap into place between the two pivot levers. The first and second parts of the connecting means are designed to be detached from one another by hand, so that by simply detaching the parts of the connecting means from one another and folding down the rear hatch, the boat automatically slides over the guide means into the water.

A roller chain forms the conveyor, which is insensitive to shock loads. A roller chain is arranged on both sides of the guide device, which is designed as a roller conveyor, to improve the alignment of the boat.

20

The drive has a hydraulic gear that can advantageously absorb the shock loads that occur when engaging without causing damage. The drive is also connected to a proximity switch provided in the boat's storage space, which triggers a signal to start the drive mechanism when the boat is retracted.

Advantageous further developments of the invention are characterized in the subclaims or are presented in more detail below together with the description of the preferred embodiment of the invention using the figures. They show:

f/7

-

SWE39.G.1A Sheet 7

Figures 1, la and 1b show a perspective section of the embodiment of the invention arranged in the boat storage space and two schematic side views of different hauling positions of the boat,
5

Figure 2 shows a detail of a side view of a part |f of the embodiment, |'

Figure 3 is a schematic, perspective view of a part of the embodiment, and

Figure 4 shows a schematic, perspective section of a boat entering the ship with the embodiment of the invention.

In Figure 1, an embodiment is shown in a perspective section, with Figures 1a and 1b showing a section of a schematic side section of a ship 11 having a boat 10 in two different hauling positions 101 and 102. The boat 10 is designed to be fully retractable and extendable into the ship 11 at the stern. In Figures 1a and 1b, the outlines of a boat storage space 12 of the ship 11 are shown in dashed lines.

A device 13 for completely hauling up the boat 10 is arranged in the boat storage space 12 and has several rollers 14 that support the boat 10 horizontally and vertically within the boat storage space 12. Furthermore,

the device 13 holds two roller chains 16, each having a drive 15 and running parallel to one another, for advancing

/8th

SWE39.G1A Sheet 8

moving the boat 10 when hauling up. The roller chains 16 are arranged in the area of the floor 17 in the boat storage space 12, parallel to the longitudinal axis of the boat storage space 12 and are supported and guided in plastic tracks above and below the gear wheels 161 and 162. This reduces the wear of the roller chains 16 and prevents increased bearing loads caused by the chain sag. The roller chains 16 are insensitive to shock loads. Furthermore, they are tensioned by gear wheels 161 arranged in the area of the hauling position 101 up to further gear wheels 162 connected to the drive 15. The hauling position 101 represents the initial position of the device 13 and the hauling position 102 represents the end position during the hauling process.

Furthermore, the device 13 has connecting means in two parts, 181 and 182, which are provided as a detachable coupling between roller chains 16 and the boat 10, the first parts being designed as latching tabs 181 and connected to the boat 10 and the other parts 182 being connected to the roller chains 16 via a carriage 19.

The second parts 182 of the connecting means connected to the roller chains 16 are held in such a position when the boat 10 is being raised that when the boat 10 is driven into the boat storage space 12, they are gripped by the latching tabs under the action of the rollers 14 and automatically lock together.

The carriage 19 is connected to the two roller chains 16 guiding the carriage 19 and is used as a carrier for

SWE39.GlA Sheet 9

the parts 182 of the connecting means connected to the roller chains. Furthermore, the carriage 19 is designed to be movable on wheels 20 along the roller chains 16 on the floor 17 of the boat storage space 12, two arms 21 arranged along the roller chains 16 and not shown in these figures are connected to the carriage 19 via a pivot point. As a result, the boat XC can still carry out vertical relative movements to the carriage in the locked state, as can be expected due to sea movements in _order to cope with load peaks. The carriage 19 improves the stability of the action when hauling up the boat 10 because the weight of the second parts 1S2 of a connecting means is shifted from the roller chains 16 to the carriage 19, whereby the roller chains 16 are _{advantageously} relieved of load.

In the area of the longitudinal axis of the boat storage space 12, a roller conveyor 23 is arranged that supports and guides the boat keel 22, and on both sides of this roller conveyor 23 there is a roller chain 16 for better alignment of the boat 10. In addition, in the area of a stern hatch 24, further rollers 140 are provided for lateral alignment of the boat 10, with the rollers 140 resting against the hull 25 of the boat 10 during the hauling process. Further rollers 141 are rotatably mounted in the area of the railing of the boat 10 to be picked up.

The device 13 also has a clamping roller freewheel 26 between the drive 15 and the roller chain 16, so that a relative movement between the boat 10 and the drive 15 corresponding to a movement of the boat 10 overtaking the drive 15 in the retraction direction is possible, at slow

SWE39.GlA Sheet 10

more movement but a drive connection is established.

The drive 15 has a hydraulic gear which is efficient for the hauling process and absorbs the shock loads which occur during engagement without causing damage. A further drive 151, also with a hydraulic gear, is used to bring the carriage 19 into the lower hauling position 101, since the drive 15 cannot exert any force in this direction due to a freewheel provided in the drive 15. The drive 151 also serves to fix the carriage 19 in its hauling position 101 by means of a hydraulic pre-tension, since mechanical locking is not permitted. This is necessary because the carriage 19 could move due to sea movements and thereby trigger the automatic hauling process. A proximity switch 27 provided in the boat storage space 12 is connected to the drive 15, which triggers a signal to start the drive 15 when the boat 10 % 2C is retracted and the drive 15 then starts.

Figure 2 shows a section of a side view of a

Part of an embodiment is shown.

25 The latching tabs 181 of the connecting elements are rounded and undercut at [' free edges 28 and 29

iv formed. This means that the second parts 182 of the connection

fertilizers with the insertion tabs 181 easily connect

and lockable. Furthermore, the thrust and pulling forces that occur when pulling in the boat 10 throw

from the roller chains 16 via the two parts 181 and 162

SWE39.G1A Sheet 11

the connecting means to the boat 10. The latching tabs 181 are essentially directed in the longitudinal direction of the boat 10, whereby the flow resistance of the boat 10 increases only slightly. The carriage 19 is connected to the roller chain 16 via chain connecting means 36.

The second parts 182 of the connecting means consist of two pivot levers 34 and 35 loaded by springs 30 and 31, arranged one behind the other in the longitudinal direction, each having a bevel 32 and 33 and mounted so as to be rotatable about an axis directed transversely to the longitudinal axis of the boat storage space 12. During the hauling process, the pivot lever 34 essentially transfers the tensile forces and the pivot lever 35 essentially transfers the thrust forces to the carriage 19. The latching tabs 181 are pulled over the bevels 32 and the two parts 181 and 182 of the connecting means engage with each other with automatic locking. The latching tabs 181 fit between the pivot levers 34 and 35. The boat 10 is held in its final position, the hauling position 102, by an additional safety device. The two parts 181 and 182 of the connecting means are designed to be detachable from one another by hand, so that by simply tensioning the springs 30, while the boat 10 is held by the additional safety device, by pressing down and locking the pivoting lever 34, the latching tab 181 can be released from the pivoting levers 34 and 35. After folding down the rear flap 24 and after releasing the additional safety device, the boat 10 slides into the water automatically.

SWE39.G1A Sheet 12

Figure 3 shows a schematic, perspective view of the carriage 19 in the catch-up position 101 in connection with other components.

Two rollers 230 and 231 of the roller conveyor 23 are rotatably mounted along the longitudinal axis of the boat storage space 12 in the area of the floor 17 of the boat storage space 12. Two symmetrically arranged arms 21, which are connected to the carriage via a swivel joint, are articulated on the carriage 19. The two areas on which the arms 21 are arranged on the carriage 19 are connected by a crosspiece 210. The carriage 19 is connected to the roller chain 16 via chain connectors 36. The pivoting levers 34 and 35, which are loaded with springs 30 and 31, are articulated on the arms 21. The wheels 20 are rotatably mounted below the pivoting levers 34 and 35 in the area of the arms 21 of the carriage 19. The roller chains 16 run essentially in the middle of the arms 21 on both sides of the roller conveyor 23 from the gears 161 to the gears 162 (not shown in this figure). The proximity switch 27 is provided in the area of a wheel 20.

Figure 4 shows a schematic perspective view of the boat 10 entering the ship 11.

For the sake of clarity, the boat 10 is shown only in its upper outline and with its connecting means 181 in dashed lines. The stern hatch 24 of the ship 11 is folded down to accommodate the boat 10 and the carriage 19 is in the lower hauling position. The boat 10 is held or guided in the predetermined position by the rollers 14 and the other guide means 140 and 141.

/13

SWE39.G1A Sheet 13

Using this and the previously described figures 1 to 3, the process of hauling up the boat and the function of the clamp roller freewheel 26 can be conveniently explained.

After folding down the rear hatch 24, the boat 10 drives into the boat storage space 12 under its own thrust. Supported and aligned by the rollers 14, the latching tabs 181 engage in the second parts 182 of the connecting means with automatic locking. The first parts 181 of the connecting means slide over the second parts 182 of the connecting means in such a way that the pivot levers 34 compress the springs 30. The first parts 181 then fit between the pivot levers 34 and 35 and the first parts 181 are thus connected to the second parts 182 of the connecting means. The thrust of the boat 10 is simultaneously transferred to the conveyor arrangement, which does not yet have a drive connection with the drive 15 due to the clamping roller freewheel 26 inserted between them. When the boat 10 is driven in, a signal is sent to the drive 15 from the proximity switch 27 arranged in the boat storage space 12, so that the drive 15 starts moving. As the speed of the roller chain 16 driven by the boat's thrust and the drive 15 approach, a drive connection is established by the clamping roller freewheel 26. The drive 15 now drives the gears 161 and 162 via the clamping roller freewheel 26 and pulls the carriage 19 over the floor 17 of the boat storage space 12 in the direction opposite the tailgate 24 into the hauling position.

102. In the hauling position 102, an additional safety device is attached to the boat 10 to hold the boat 10.

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The boat 10 is thereby continuously pulled in in the shortest possible time and by utilizing the boat's own thrust. Furthermore, the maximum forces and moments that occur are advantageously reduced due to the lack of starting load for the drive 15. At the same time, the pulling in process by the device 13 is independent of the sea state, so that the boat 10 can be pulled in or launched at any time.

Furthermore, additional and/or different designs and arrangements of the freewheel are possible. The freewheel arrangement can be arranged between the carriage 19 and the roller chain 16 and can be designed as an anchor to be latched into the roller chain 16. Furthermore, the freewheel arrangement can be designed by providing several second parts 182 of the connecting means that are firmly connected to the roller chains 16, such that the first part 181 latches into the closest second part 182 of the connecting means as the relative speed of the boat 10 approaches the roller chains 16.

The invention is not limited in its implementation to the preferred embodiment given above. Instead, a number of variants are conceivable which make use of the solution presented even in fundamentally different embodiments.

Claims (15)

SWE39.GlA Sheet 15 Claims 1. Device for completely pulling a boat into a storage space into which the boat can at least partially enter under its own power, in particular for pulling a daughter boat or dinghy on a watercraft, containing Guide means for horizontal and/or vertical support of the boat when entering the storage space, powered conveying devices for moving the boat forward when hauling it up, two-part connecting means as a detachable coupling between the conveying means and the boat, whereby a first part of the connecting means is connected to the boat and another part to the conveying means, characterized, that the second part (182) of the connecting means connected to the conveyor means, preferably designed as roller chains, is arranged in a position which, when the boat (10) is driven into the boat storage space (12), is passed or gripped by the first part (181) of the connecting means connected to the boat (10) under the action of the guide means (14, 140, 141), SWE39.G1A Sheet 16 that a freewheel arrangement is provided between the drive (15) and at least the first part (181) of the connecting means, which is firmly connected to the boat (10), in such a way that it allows a relative movement between the boat (10) and the drive (15) - corresponding to a movement of the boat (10) overtaking the drive (15) in the retraction direction - but creates a drive connection during slower movement, that the two parts (181, 182) of the connecting means are designed to be automatically locked and engage with one another. 2. Device according to claim 1, characterized in that the freewheel arrangement is provided between the drive (15) and the conveying means. 3. Device according to one of the preceding claims, characterized in that a carriage (19) provided with its own guide and firmly connected to the conveying means or designed to be connectable is arranged as a carrier for the second part (182) of the connecting means. 4. Device according to claim 1 and 3, characterized in that the freewheel arrangement is arranged between the carriage (19) and the conveying means. SWE39.G1A Sheet 17 5. Device according to claim 1, characterized in that the freewheel arrangement is designed by providing several second parts (182) of the connecting means that are firmly connected to the conveying means, such that the first part of the connecting means merges into the next second part (182) of the connecting means as the relative speed of the boat approaches the conveying means. 6. Device according to one of the preceding claims, characterized in that the first part of the connecting side ⁽¹ ) is designed as a latching tab (181) acting in the direction of the longitudinal axis of the boat (10), which has on its free edges (28, 29) rounded, undercut strips extending over the thickness of the latching tab (181), which are in particular designed in one piece with the latching tab (181). 7. Device according to one of the preceding claims, characterized in that the second part (182) of the connecting means consists of two spring-loaded pivot levers (34, 35) arranged one behind the other in the longitudinal direction, each having a bevel (32, 33). 8. Device according to one of the preceding claims, characterized in that SWE39.G1A Sheet 18 characterized in that the conveying means are arranged on both sides of the guide means (14, 140, 141) for a boat keel ( 22) , which is designed as a roller conveyor (23).
5 9. Device according to claim 2, characterized in that the freewheel arrangement is designed as a clamping roller freewheel (26). 10. Device according to one of the preceding claims, characterized in that the drive (15) is connected to the conveying means via a hydraulic transmission. 11. Device according to one of the preceding claims, characterized in that a further drive (151) is connected to the conveying means. 12, Device according to one of the preceding claims, characterized in that the first and second parts (181, 182) of the connecting means are designed to be manually detachable from one another. 13. Device according to one of the preceding claims, characterized by switching means for activating the drive (15), which are activated when the boat (10) approaches the conveying means. SWE3 9.G1A Sheet 19 14. Device according to claims 3 and 13, characterized in that the switching means consist of a proximity switch (27) which is in operative connection with the carriage (19) and is fixed to the watercraft in the vicinity of the conveying means and which switches on the drive (15) when the carriage (19) n ^c *r Ali ^ert än ⁿ S ⁿⁿ SI f inn the proximity switch (27). 15. Device according to claim 14, characterized in that the proximity switch has an inductively operating sensor.