EP2161191A2 - Water vehicle with control house that can be lifted and lifting device for lifting the control house - Google Patents

Abstract

The vehicle has a control house (12) arranged in front of a superstructure in a form of a deckhouse (10), and a lifting device (14) for lifting of the control house. The lifting device has lifting arms (30, 32) connected with the superstructure by a pivoting joint and with the control house by another pivoting joint (48). The latter joint is arranged at a lower side of the control house or near the lower side at a rear wall of the control house. The control house maintains orientation during lifting and lowering. The former joint is arranged on a flat roof (22) of the superstructure.

Description

The invention relates to a watercraft according to the preamble of claim 1, which is equipped with a liftable wheelhouse and a lifting device for lifting the wheelhouse. The invention further relates to a lifting device for lifting a liftable wheelhouse of a watercraft according to the preamble of claim 14.

Watercraft with a liftable wheelhouse and a lifting device for lifting the wheelhouse are known and are mainly used in inland navigation as push boats for push barges and cargo ships.

In most cases, lifting devices have been used in which either a so-called scissor table, a vertical lifting cylinder or a Teleskububschacht is arranged below the wheelhouse, with the help of which the wheelhouse is raised or lowered as needed.

Scissor tables have the disadvantage that they are still relatively low even in the lowered state, which is unfavorable in view of the height of the lowered wheelhouse. By contrast, lifting cylinders arranged under the wheelhouse can not absorb any transverse forces, so that additional guides are required for the wheelhouse. The installation of a telescopic duct, however, requires an opening in the deck underneath the wheelhouse, which is difficult to seal. For this reason, lifting devices with Teleskububschacht because of corrosion problems and because of the risk of ingress of water through the opening at least for Seaworthy vessels not used exclusively on inland waters are unsuitable.

These and other problems of lifting devices with a scissor table or a vertical hydraulic cylinder under the wheelhouse are by a in the DE OS 30 10 984 disclosed lifting device of the type mentioned for a liftable wheelhouse of a watercraft eliminated. The lifting device consists essentially of a carrier or lifting arm, at the front end of the wheelhouse is suspended, while its rear end is connected behind the wheelhouse at an elevated position opposite the deck articulated with a deckhouse or with the watercraft.

In this construction, however, considered to be disadvantageous that the wheelhouse can not be positioned directly in front of the deckhouse in the lowered position, but that between the deckhouse and the wheelhouse, a non-usable space is created, on the other hand lost between the wheelhouse and the front stem. This space is wider, the shorter the arm, so that a shortening of the support arm aggravates the problem. For an extension of the support arm on the other side a relatively long deckhouse is needed, which is not available on every watercraft. In addition, with extension of the support arm and the lever arm between the pivot joint of the support arm and the suspension of the wheelhouse is extended, whereby a longer and / or stronger hydraulic cylinder is required to raise the wheelhouse. In addition, a lot of space for the accommodation of the hydraulic cylinder is lost within the deckhouse.

Proceeding from this, the present invention seeks to improve a watercraft and a lifting device of the type mentioned in that the lifting device can accommodate quite outside of the structures and has a small footprint with lowered wheelhouse, and that the lowered wheelhouse in a small Distance can be positioned or discontinued before the bodies.

This object is achieved in that the second joint is disposed on an underside of the wheelhouse or near the bottom of the wheelhouse at the rear wall and that the lifting arm is angled and that one of the ends of the lifting arm hinged to a bottom of the wheelhouse or near the Bottom with the rear wall is connectable.

The invention is based on the idea to support the wheelhouse on the at least one articulated to the bodies lift arm, instead of hanging it.

Due to the combination of features according to the invention, the angled lift arm can be closely against the superstructures and against the wheelhouse against the underside of the wheelhouse and thus has only a small footprint with lowered wheelhouse. In addition, the wheelhouse moves when lifting from the front of the structures away slightly in the direction of travel and not as in the known lifting device against the direction of travel backwards, so that the lowered wheelhouse can be positioned at a very short distance in front of the bodies. Compared to the known lifting devices with scissor lift also has the Roof of the lowered wheelhouse on a lower height above the deck, which is particularly advantageous when driving through low bridges.

A preferred embodiment of the invention provides that the lifting arm comprises at least two legs or pairs of legs which enclose an angle with each other, wherein when the wheelhouse is lowered, one of the legs or one of the leg pairs extends approximately horizontally to the top of the superstructures over a part thereof and expediently abuts against the upper side of the superstructures, while the other leg or the other leg pair extends approximately vertically between the wheelhouse and the superstructures down to the second joint, which according to the invention at the bottom of the wheelhouse or near the bottom whose back wall is located.

To ensure that the wheelhouse does not change its orientation during lifting and lowering, the lifting device according to a preferred embodiment of the invention comprises two lifting arms, which are connected to each other by a link, preferably a so-called parallel link.

Except by the handlebar the unchanged orientation of the wheelhouse is also achieved in that according to a further preferred embodiment of the invention, the two lifting arms are each connected by a first joint to the superstructures and by a second joint with the wheelhouse, and that in the direction of travel of the watercraft the two first joints and the two second joints are mounted in the same horizontal distance from each other on the superstructures or on the wheelhouse.

A particularly advantageous embodiment of the lifting device provides that one of the two lifting arms comprises three legs or pairs of legs and the other of the two lifting arms two legs or leg pairs, wherein the adjacent legs or pairs of legs of each lifting arm form an angle of 90 degrees with each other.

The lifting arm with the three legs or leg pairs is preferably arranged with lowered wheelhouse that extends a first leg or a first leg pair of the first joint of the lifting arm from approximately horizontally over part of the structures that a second leg or a second leg pair extending approximately vertically between the wheelhouse and the superstructures downwardly, and that a third leg or a third leg pair extends approximately horizontally along the floor of the wheelhouse to the second joint of the lift arm.

The lift arm with the two legs or leg pairs is preferably arranged with lowered wheelhouse so that extends one of the two legs or one of the two pairs of legs from the first joint of the lift arm from approximately horizontally over part of the structures, while the other leg or the other leg pair extends approximately vertically between the wheelhouse and the superstructures down to the second hinge of the lift arm.

The arranged between the two lift arms handlebar has expediently a horizontal orientation with lowered wheelhouse and retains this during the lifting of the wheelhouse substantially. The handlebar is preferably articulated with connected to those legs or leg pairs of the two lifting arms, which extend approximately horizontally over a portion of the structures when the wheelhouse is lowered.

In order to improve the rigidity of the lifting arm or the two lifting arms against lateral forces, such as lateral wind forces, the lifting arm or each of the two lifting arms is preferably designed as a frame structure having two interconnected by cross braces, spaced apart side frame parts.

In order to reduce the footprint of the lifting device with the wheelhouse lowered further, the frame structures of the two lifting arms are advantageously different widths and fit with lowered wheelhouse and parallel alignment of their respective frame parts together, whereby they have overall dimensions when viewed in the lateral direction, which is smaller than the sum of their Individual dimensions are.

For lifting the wheelhouse is useful at least one hydraulic cylinder and preferably a pair of hydraulic cylinders whose cylinder tubes are hingedly connected to the structures and their piston rods articulated to the lift arm or one of the lift arms, or vice versa. The hydraulic cylinders are preferably located on top of the superstructures and are inclined at a shallow angle with respect to the horizontal, but suitably only so strong that the entire lifting device does not project beyond the roof of the wheelhouse.

On the one hand in the case of a leak in the hydraulic system to prevent unwanted lowering of the wheelhouse and on the other hand without mechanical supports inspection or To allow maintenance work below the raised wheelhouse, the at least one hydraulic cylinder advantageously has a locking device for mechanically locking its piston rod, which advantageously responds automatically on the one hand at a pressure drop in the hydraulic system and on the other hand manually activated in any position of the lifting device and the wheelhouse to the Lifting device and the wheelhouse safely hold in this position.

• Fig. 1 eine Seitenansicht eines Wasserfahrzeugs mit einem hubfähigen Steuerhaus in unterschiedlichen Hubstellungen;
• Fig. 2 eine vergrößerte perspektivische Ansicht einer Hubvorrichtung zum Anheben des Steuerhauses;
• Fig. 3a bis 3c Seitenansichten der Hubvorrichtung und des Steuerhauses in unterschiedlichen Hubstellungen entsprechend Fig. 1;
• Fig. 4a bis 4c Oberseitenansichten der Hubvorrichtung und des Steuerhauses in unterschiedlichen Hubstellungen entsprechend Fig. 3a bis 3c.

In the following the invention will be explained in more detail with reference to an embodiment shown in the drawing. Show it:

• Fig. 1 a side view of a watercraft with a liftable wheelhouse in different stroke positions;
• Fig. 2 an enlarged perspective view of a lifting device for lifting the wheelhouse;
• Fig. 3a to 3c Side views of the lifting device and the wheelhouse in different stroke positions accordingly Fig. 1 ;
• Fig. 4a to 4c Top views of the lifting device and the wheelhouse in different stroke positions accordingly Fig. 3a to 3c ,

The watercraft shown in the drawing is a seaworthy tugboat 2, which is mainly used in inland navigation to push one or more push barges in a pusher, but due to its seaworthiness in coastal shipping can be used as a tugboat, pusher or supplier.

How best in Fig. 1 shown, the pusher boat 2 has a hull 4 with a deck surrounded by a rail 6, deck structures in the form of a deckhouse 10 and in the direction of travel of the push boat 2 directly in front of the deckhouse 10 arranged wheelhouse 12, and designed for pushing push barrows front stem 14th ,

While the deckhouse 10 is welded to the deck 8, the wheelhouse 12 can, if necessary, by means of a lifting device 14 from a in Fig. 3a and 4a shown lowered position to over twice its height, that is to about 4.5 m, in the in Fig. 3c and 4c shown position can be raised to improve the view of the ship's master located in the wheelhouse 12 in the direction of travel on the push barges of the tow band away. To pass under a bridge, the wheelhouse 12 depending on the height of the bridge back to his in Fig. 3a and 4a shown lowered position or alternatively be lowered to an intermediate position, such as the in Fig. 3b and 4b shown position to avoid a collision between the wheelhouse 12 and the bridge.

Access to the wheelhouse 12 takes place in the lowered state from the deck 8 of the push boat 2, from which a door 16 of the wheelhouse 12 can be reached via a step 18. When the wheelhouse 12 is raised access to the wheelhouse 12 via a ladder 20 is possible depending on the height of the raised wheelhouse 12 either from deck 8 or from a roof 22 of the deckhouse 10 on a platform 24 in front of the door 16 of the wheelhouse 12 can be created as in Fig. 1 shown.

When lowered wheelhouse 12, which serves to raise and lower the wheelhouse 12 lifting device 14 above the flat roof 22 of the deckhouse 10 only a small height, so they do not exceed the also flat roof 28 of the lowered wheelhouse 12.

The hydraulically operated lifting device 14 essentially comprises two angled lifting arms 30, 32, which are hinged at one end to the roof 22 of the deckhouse 10 and at the other end to the wheelhouse 12, two connecting arms 30 and 32 connecting arm 34, and two to each other parallel hydraulic cylinder 36, by means of which the wheelhouse 12 is raised by pivoting the lifting arms 30 and 32.

How best in Fig. 2 1, each of the two lifting arms 30, 32 is formed by a frame construction, each comprising two angled spaced apart in a lateral distance, aligned in the direction of travel frame portions 38 and a plurality of crosswise between the frame members 38 arranged cross struts 40, which for stiffening the frame structures the lifting arms 30, 32 are used. The two frame parts 38 of each lifting arm 30, 32 are each made of elongated closed hollow profiles with rectangular cross-section.

Likewise best in Fig. 2 shown, the frame parts 38 of the frame construction of the lift arm 30 have a smaller lateral distance than the frame parts 38 of the frame construction of the lift arm 32, so that the lift arms 30, 32 with lowered wheelhouse 12 fit into each other when the lift arm 30 comes to rest within the lift arm 32, which is why the lift arm 30 is referred to as the inner lift arm and the lift arm 32 as an outer lift arm below.

In the inner lift arm 30, the frame parts 38 of the frame structure each consist of a first and a second rigidly interconnected legs 42, 44, wherein the two first legs 42 are articulated via first pivot joints 46 on the roof 22 of the deckhouse 10 and in the lowered position of Wheelhouse 12 are aligned parallel to the roof 22 of the deckhouse 10 and rest on this, and wherein the second leg 44 with the first leg 42 form an angle of 90 degrees and via second pivot joints 48 at the level of a horizontal floor 50 of the wheelhouse 12 at the vertical Rear wall 52 are hinged, wherein they extend in a lowered space between the rear wall 52 and a vertical, slightly recessed opposing front wall 54 of the deckhouse 10 in a direction parallel to the rear wall 52 and the front wall 54 downward with the control box.

The length of the first leg 42 corresponds approximately to the distance from the first pivot joints 46 to the rear wall 52 of the wheelhouse 12, while the length of the second leg 44 corresponds approximately to the height of the deckhouse 10.

In the outer lifting arm 32, the frame parts 38 of the frame structure each consist of a first, a second and a third leg 56, 58, 60. The first legs 56 are articulated via a first pivot joint 62 on the roof 22 of the deckhouse 10 and in the lowered position of the wheelhouse 12 aligned parallel to the roof 22, wherein they rest on this. The second legs 58 include with the first legs 56 at an angle of 90 degrees and extend in the lowered position of the wheelhouse 12 between the rear wall 52 and the opposite front wall 54 of the deckhouse 10 parallel to the second legs 44 of the inner lift arm 30 vertically bottom, while the third leg 60 with the second legs 58 include an angle of 90 degrees, on the opposite side as the first leg 56 over the second leg 58 and survive in the lowered position of the wheelhouse 12 parallel to the floor 50 and the deck 8 extend below the wheelhouse 12 in the direction of travel, being articulated with their front ends on the second pivot joints 64 on the floor 50 of the wheelhouse 12.

The length of the first leg 56 corresponds approximately to the distance from the first pivot joints 62 to the rear wall 52 of the wheelhouse 12, while the length of the second leg 58 corresponds approximately to the height of the deckhouse 10. The length of the third leg 60 corresponds approximately to the distance from the front wall 54 of the deckhouse 10 to the second pivot joint 64.

In both lift arms 30, 32, the frame parts 38 at the junctions of adjacent legs 42, 44; 56, 58; 58, 60 reinforced by gussets 66, which are welded onto the inner sides and the outer sides of the frame parts 38.

All pivot joints 46, 48, 62, 64 have a horizontal, aligned transversely to the direction of travel pivot axis. Seen in the direction of travel is the distance between the two pairs of first pivot joints 46, 62 on the roof 22 of the deckhouse 10 identical to the distance between the two pairs of second pivot joints 48, 64 on the rear wall 52 and under the bottom 50 of the wheelhouse 12. The pivot joints 42, 46, 62, 64 each consist of one connected to the deckhouse 10 and with the wheelhouse 12 bearing block, a bearing block on both sides embracing fork end of the adjacent leg and a running through aligned eyes of the fork end and the bearing block, secured in relation to the fork pivot pin.

The two connecting the lifting arms 30 and 32 links 34 are also made of a closed at the ends hollow profile with a rectangular cross-section. The links 34 are each connected via pivot joints 68, 70 with horizontal pivot axes with the adjacent legs 42 and 56 of the two lifting arms 30 and 32, wherein they rest against the outer sides of the legs 42 and against the inner sides of the legs 56. The pivot joint 68 between the rear end of each link 34 and the adjacent leg 42 of the lift arm 30 is located near its fork end, while the pivot joint 70 between the front end of each link 34 and the adjacent leg 56 of the lifting arm 32 approximately in the middle between the fork end and the connection with the second leg 60 of the lifting arm 32 is arranged. The handlebar 34 rests with the wheelhouse lowered 12 in a horizontal orientation on the roof 22 of the deckhouse 10 and substantially maintains its horizontal orientation while being lifted together with the lift arms 30, 32, as best shown in FIG Fig. 3a to 3c shown.

The two identical, arranged between the legs 42 of the inner lifting arm 30 hydraulic cylinder 36 each have a cylinder tube 72 and a piston rod 74 in a known manner. The pointing in the direction of travel front ends of the two cylinder tubes 72 are articulated via two juxtaposed pivot joints 76 on the roof 22 of the deckhouse 10, while pointing in the opposite direction ends of the two piston rods 74 articulated via pivot joints 78 on a rigidly connected to the lifting arm 30 rocker 80 are. The rocker 80 is attached to the lift arm 30 in the vicinity of its pivot joints 46 and stands at a lowered wheelhouse 12 slightly above the lift arm 30 via, as best in Fig. 3a shown, so that the hydraulic cylinder 36 are inclined slightly upwards against the direction of travel.

The hydraulic cylinders 36 are two single-acting hydraulic cylinders 36, which are fed by a hydraulic pump (not shown) of a hydraulic system of the pusher 2 for lifting the wheelhouse 12 together with hydraulic oil and in a power failure by manually opening a valve with a Can connect hydraulic tank of the hydraulic system, so that the hydraulic oil in the hydraulic cylinders 36 can be lowered to lower the wheelhouse 12 without the aid of the hydraulic pump in the hydraulic tank.

Each hydraulic cylinder 32 comprises a locking unit 82 surrounding the piston rod 74 in extension of the cylinder tube 72 for mechanically blocking the piston rod 74. By activating the locking unit 82, in a cylindrical housing 82 of the locking unit 82 which adjoins the cylinder tube 72 and is rigidly connected to the cylinder tube 72 Clamping jaws against the circumference of the piston rod 74 are pressed to clamp them in their respective extended position.

The locking unit 82 serves for a safety and speaks automatically in the event of a pressure drop in the hydraulic cylinder 36 due to a leak in the hydraulic system to clamp the piston rod 74 relative to the cylinder tube 72 and prevent unwanted lowering of the wheelhouse 12 until the leak is closed. On the other hand, however, the locking unit 82 can also be manually activated in any position of the wheelhouse 12, to prevent unintentional lowering of the wheelhouse 12 without additional mechanical support, for example, during maintenance and inspection work on the raised wheelhouse 12.

In order to fulfill these functions, the two hydraulic cylinders 36, on the one hand, and their locking units 82, on the other hand, communicate with the hydraulic pump through two separate hydraulic circuits of the hydraulic system.

When the wheelhouse 12 by means of the lifting device 14 from its lowered position ( Fig. 3a ) is raised, it moves in a horizontal direction first a little way away from the deckhouse in the direction of travel ( Fig. 3b ) and then moves back slightly against the direction of travel, so that the wheelhouse 12 in its highest position ( Fig. 3c ) is located just above the position in the lowered state.

By the link 34, the pairs of legs 42, 56 and 44, 58 during pivoting of the lifting arms 30, 32 are always parallel aligned with each other, as in the FIGS. 3a to 3c shown.

Claims (15)

Watercraft with superstructures and, arranged in front of the superstructure wheelhouse, and with a lifting device for lifting the wheelhouse, wherein the lifting device comprises at least one lift arm, which is connected by at least a first hinge with the superstructure and at least a second joint to the wheelhouse, characterized in that the second joint (48; 64) is arranged on a lower side (50) of the wheelhouse (12) or near the lower side (50) on a rear wall (52) of the wheelhouse (12). Vessel according to claim 1, characterized in that the wheelhouse (12) maintains its orientation when raised and lowered. Vessel according to one of the preceding claims, characterized in that the first joint (46; 62) is arranged on an upper side (22) of the superstructures (20). Vessel according to one of the preceding claims, characterized in that the lifting arm (30; 32) comprises at least two legs or pairs of legs (42, 44; 56, 58, 60) which enclose an angle with each other. Vessel according to claim 5, characterized in that the two legs or pairs of legs (42, 44, 56, 58) enclose an angle of approximately 90 degrees with each other, and in that, when the wheelhouse (12) is lowered, one of the legs or one of the pair of legs (42 ; 56) approximately horizontally above a portion of the structures (20) extends, while the other leg or the other leg pair (44; 58) extends approximately vertically between the wheelhouse (12) and the structures (209 down. Watercraft according to one of the preceding claims, characterized in that the lifting device (14) comprises two lifting arms (30, 32). Vessel according to Claim 6, characterized in that the two lifting arms (30, 32) are connected to the superstructure (20) by a first joint (46, 62) and to the wheelhouse (12) by a second joint (48, 64) and that in the direction of travel of the watercraft (2) the two first joints (46; 62) and the two second joints (48; 64) are each mounted at the same horizontal distance from each other on the superstructures (20) and the wheelhouse (12) are. A vessel according to claim 6 or 7, characterized in that one (32) of the two lifting arms (30; 32) comprises three legs or pairs of legs (56; 58; 60) connected to the adjacent leg (s) (58; 60; 58) each include an angle. Vessel according to claim 8, characterized in that the other lifting arm (30) comprises two legs or pairs of legs (42; 44) which enclose an angle with each other. Vessel according to claim 9, characterized in that the one leg or the one pair of legs (42) is connected to the superstructures (20) by the first joint (46), and that the other leg (s) (44) is connected by the second hinge (48) near the bottom (50) of the wheelhouse (12) with its rear wall (52). Watercraft according to one of claims 6 to 10, characterized in that the two lifting arms (30, 32) are interconnected by at least one link (34). Watercraft according to one of the preceding claims, characterized in that the lifting device (14) does not project beyond a roof (28) of the lowered wheelhouse (12). Vessel according to one of the preceding claims, characterized in that the lifting device (14) comprises at least one hydraulic cylinder (36) having a cylinder tube (72) pivotally connected to the superstructures (20) and a piston rod (30) pivotally connected to the lifting arm (30). 74), or vice versa, wherein the hydraulic cylinder (36) comprises a locking device (82) for mechanically locking the piston rod (74) and wherein the locking device (82) is automatically activated at a pressure drop in the hydraulic cylinder (36) and in any position the lifting device (14) and the wheelhouse (12) is manually activated. Lifting device for lifting a wheelchair in front of superstructures arranged in a control vessel of a watercraft, with at least one articulated with the superstructures and the wheelhouse lift arm, characterized in that the lifting arm (30; 32) is angled and that a front end of the lifting arm (30; 32) articulated with a bottom (50) of the wheelhouse (12) or near the bottom (50) with a rear wall (52) of the wheelhouse (12) is connectable. Lifting device according to claim 14, characterized in that it comprises two lifting arms (30; 32) each connected to the wheelhouse by a first articulation (46; 62) with the superstructures (20) and by a second articulation (48; 64). 12) are connectable, and that the two first joints (46; 62) and the two second joints (48; 64) each have the same horizontal distance from each other.

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