Classifications

• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
  • E01D15/00—Movable or portable bridges; Floating bridges
  • E01D15/24—Bridges or similar structures, based on land or on a fixed structure and designed to give access to ships or other floating structures

Definitions

• the invention relates to a loading and / or unloading device for ferry systems with at least one, in particular one-part ramp, which can be swiveled around a horizontal axis on the land side and can be guided into the respective working position by means of lifting devices for the purpose of loading and / or unloading is.
• German patent 3437673 discloses a method for loading and unloading a railway freight ferry ship located in a ferry basin, as well as an arrangement on the land and ship side for carrying out the method.
• the rail freight ferry is equipped with several decks which have corresponding track arrangements.
• the decks can be loaded and unloaded via a multi-day loading ramp, the individual ramps of which can be moved independently of one another into a loading and unloading position for the associated deck.
• a disadvantage of this arrangement is that, although the ramps can be connected to the ship, due to the rigid arrangement during ship movements and / or impacts, they are unable to safely absorb larger impacts. As a result, damage must be expected here.
• the invention has for its object to further develop the loading and / or unloading device described in the generic part of the first claim that in addition to the resilient evasion of the loading and / or unloading device during ship movements and major impacts when mooring the ship no damage to the ramp or the components that interact with it can be safely compensated.
• This object is achieved according to the invention in that the onshore displacement of the ramp is formed from longitudinally displaceable bearings provided on both sides of the ramp end and that at least one length compensation device connected to the ramp and the onshore support region is arranged outside the bearing.
• the combination of the pivot bearing in conjunction with the hydraulic cylinder which acts as a damping and length-compensating device, ensures safe evasion of the ramp even in the event of major impacts when mooring a ferry boat, without causing significant damage to the ramp itself or to the components interacting with it.
• the displacement path can be up to 3 m. This applies in particular in cooperation with the existing, in particular hydraulically damping bumpers on the ramp, which - without causing the ramp to evade - can also elastically absorb shocks from swell, heel or the like.
• the bumpers provided on the sea side can, for example, safely absorb contact forces of 200 p without the length compensation device being actuated. At the same time, they serve as a docking and centering aid for the area of the ferry to be docked by being used to pull the respective area.
• Figure 1 shows a ferry pier 1, which is formed from two independently operable ramps 2, 3.
• the ramp 2 is provided for the vehicle transport, while the ramp 3 is equipped with rails 4 and is designed for combined rail and vehicle traffic.
• both ramps 2, 3 are lowered onto the corresponding decks 6, 7.
• lifting towers 8 are provided, which are provided with lifting devices, not shown.
• the ramp 3 is shifted on the land side in such a way that it can bump horizontally, which, on the one hand, when the ferry 5 is docked and, on the other hand, can arise due to its movements during loading and unloading.
• longitudinally displaceable slide bearings 10 are provided on both sides of the ramp 3 in its rear region 9, which in this case are designed as rotary bearings in order to be able to follow pivoting movements of the ramp 3 about the horizontal axis 11 without constraints.
• Guides 12, 13 are provided above and below the rotary bearings 10, which are sealed in a corresponding manner (not shown).
• a shock-absorbing hydraulic cylinder 14 is arranged below the ramp 3, which is shifted on the one hand in the area 15 below the ramp and on the other hand in the shore-side support area 16 of the same. In this case, the displacement distance a is 2.5 m, the end position being shown in dashed lines.
• Hydraulically damping bumpers 18 are provided on the free end of the ramp 17, which on the one hand elastically absorb lighter impacts caused by waves or heeling and take over and in with larger impacts, such as may occur when the ferry 5 is docked Compensate for interaction with the hydraulic cylinder 14 and the pivot bearings 10 elastically, without causing damage to the ramp 3 or corresponding components.
• a predetermined contact pressure for example 200 Mp, must be exerted on the bumper 18 in advance.
• FIG. 2 shows a cross section through the land-side storage area 9.
• the ramp 3 together with rails 4 and the pivot bearings 10 with guides 12, 13 can be seen.
• the ramp 3 can be pivoted about the horizontal axis 11 in order in this way to be able to cope with different water and / or auxiliary states.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Ship Loading And Unloading (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6433501

Family Applications (1)

Country Status (5)

Families Citing this family (2)

Family Cites Families (5)

• 1991
  • 1991-06-08 DE DE19914118898 patent/DE4118898C1/de not_active Expired - Lifetime
• 1992
  • 1992-03-04 WO PCT/EP1992/000482 patent/WO1992022489A1/de not_active Application Discontinuation
  • 1992-03-04 EP EP19920905932 patent/EP0587569A1/de not_active Withdrawn
• 1993
  • 1993-10-15 FI FI934558A patent/FI934558A/fi not_active Application Discontinuation
  • 1993-12-07 NO NO934449D patent/NO934449D0/no unknown
  • 1993-12-07 NO NO934449A patent/NO934449L/no unknown

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events