Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
  • B63B25/24—Means for preventing unwanted cargo movement, e.g. dunnage
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
  • B63B25/28—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for deck loads
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
  • B63B19/12—Hatches; Hatchways
  • B63B19/14—Hatch covers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
  • B63B25/28—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for deck loads
  • B63B2025/285—Means for securing deck containers against unwanted movements

Definitions

• the object of the present invention is an arrangement for supporting containers to be transported on the deck of a cargo ship, which arrangement comprises hatch covers to be placed on top of the cargo compartments of the cargo ship, on top of which hatch covers containers are transported, as well as lashing bridges that are transverse to the cargo ship, which are fixed to the transverse members between the cargo compartments, and on which lashing bridges the containers are supported with lashing bars, and which hatch covers are disposed between the lashing bridges in such a way that they can be lifted off and lowered back into their positions.
• each lashing bar is fixed at one of its ends to one corner of a container and at the other end to a turnbuckle, which in turn is fixed at its other end to a lashing bridge.
• the fixing is tightened by rotating the turnbuckle.
• Lashing bridges known in the art are, in their dimensions, of the type that the support structures of them on the member between the cargo compartments are relatively narrow compared to the width of the member below the lashing bridge (in other words, the structure of the bridge is short in the longitudinal direction of the ship). The reason is the space reserved for the hatch cover in a conventional structure - the hatch cover rests supported on the same member.
• Known lashing bridge arrangements are presented, for example, in the following patents: KR20070115383 and EP0815004.
• the aim of the current invention is to achieve a better arrangement than before for supporting containers to be transported on the deck of a cargo ship.
• the arrangement according to the invention is characterized in that the ratio of the greatest width of the support structures of a lashing bridge disposed on a transverse member to the width of the transverse member is at least 0.8 at one or more points of the lashing bridge.
• One preferred embodiment of the arrangement according to the invention is characterized in that the ratio of the greatest width of the support structures of a lashing bridge disposed on a transverse member to the width of the transverse member is at least 1 at one or more points of the lashing bridge.
• Another preferred embodiment of the arrangement according to the invention is characterized in that at the point of the support structures of the lashing bridge the necessary recesses are made in the hatch cover that is compatible with the lashing bridge.
• a lashing bridge can be made to be more lightweight than before and at the same time it is possible to reduce the harmful tendency of a lashing bridge to vibrate.
• the structure is inexpensive to fabricate, and also implementation of lashing bridges that are higher than before becomes possible with a structure according to the invention.
• Fig. 1 presents part of a conventional lashing bridge, a hatch cover and a container stack when two lashing bars are connected.
• Fig. 2 presents a whole conventional lashing bridge and one stack of containers stacked on top of a hatch cover.
• Fig. 3 presents a conventional lashing bridge and containers supported on it, as viewed in the transverse direction of the ship.
• Fig. 4 presents a lashing bridge according to the invention and containers supported on it, as viewed in the transverse direction of the ship.
• Fig. 5 presents an axonometric and greatly simplified view of the recesses of the hatch covers and the support structures of the lashing bridge that extend into them.
• Figs. 1-3 present prior art, so that these are not described in much detail here. The purpose of them is to illustrate the current state of the art.
• Fig. 1 thus presents a part of a lashing bridge 1, on which some of the containers 5 are supported with lashing bars 6.
• a container stack is on top of the hatch cover 4.
• Containers are also transported in the cargo compartments below the hatch covers.
• Lashing bridges are of different heights.
• the container stack exerts large forces in the lashing bars 6 fixed to the containers and onwards into the lashing bridge 1. These forces are transmitted into the hull of the ship (into the transverse member 2) via the structures of the lashing bridge.
• the lashing bridge 1 extends from one side of the ship to the other, i.e. the ends of the lashing bridge rest on a longitudinal member of the ship or on the frame structures of the side.
• the lashing bridge is supported on top of the transverse member 2 between the cargo compartments.
• the invention is limited to that part of the lashing bridge that is situated in the area between the cargo compartments and the hatch covers.
• Fig. 3 presents a lashing bridge 1 as viewed in the transverse direction of the ship. It is seen in it that the largest width of the lashing bridge is clearly narrower than the transverse member 2 between the cargo compartments 3.
• Fig. 4 presents a solution according to the invention.
• the width L of the lashing bridge is greater than before.
• the support structures of a lashing bridge are as wide as possible, particularly for transmitting forces in the longitudinal direction of the ship into transverse member 2.
• the width of the transverse member, on top of which the lashing bridge is supported, that is between the cargo compartments 3 is marked with the letter B.
• the invention is characterized in that L/B is at least 0.8.
• the support structures of the lashing bridge are as wide as, or even wider than, the width B of the transverse member, in other words L/B ⁇ 1.
• a conventional hatch cover cannot be installed into its position, because a suitable bearing surface for it will not remain on the transverse member 2.
• recesses 7 are made in the hatch cover at the point of the support structures of the lashing bridge.
• the support structures of the lashing bridge which are disposed at the point of the recesses of the hatch cover, can simultaneously function as guide pillars when lifting the hatch cover with a crane.
• these structures can function as horizontal limiters of a hatch cover, i.e. the support structures keep the hatch cover in the correct location on the hatch coaming as the ship makes way and when the ship inclines.
• a hatch cover is shorter in length, in which case it must be provided with e.g. support brackets (not presented in the figures) that extend over the transverse member 2.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Ocean & Marine Engineering (AREA)
• Ship Loading And Unloading (AREA)
• Bridges Or Land Bridges (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=52394765

Family Applications (1)

Country Status (9)

Cited By (3)

Families Citing this family (2)

Citations (4)

Family Cites Families (12)

• 2013
  • 2013-08-08 FI FI20135823A patent/FI124778B/fi not_active IP Right Cessation
  • 2013-08-16 EP EP13891178.9A patent/EP3030481B1/en not_active Not-in-force
  • 2013-08-16 WO PCT/FI2013/050806 patent/WO2015018968A1/en active Application Filing
  • 2013-08-16 SG SG11201600453PA patent/SG11201600453PA/en unknown
  • 2013-08-16 JP JP2016532707A patent/JP6424378B2/ja active Active
  • 2013-08-16 CN CN201380078853.0A patent/CN105873819B/zh active Active
  • 2013-08-16 DK DK13891178.9T patent/DK3030481T3/da active
  • 2013-08-21 KR KR1020130099071A patent/KR102130177B1/ko active IP Right Grant
• 2014
  • 2014-07-15 TW TW103124267A patent/TWI688518B/zh active

Patent Citations (5)

Non-Patent Citations (1)

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