WO2004043778A1 - Hanging structure for maintenance of overhanging surfaces of ships - Google Patents

Hanging structure for maintenance of overhanging surfaces of ships Download PDF

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Publication number
WO2004043778A1
WO2004043778A1 PCT/HR2003/000056 HR0300056W WO2004043778A1 WO 2004043778 A1 WO2004043778 A1 WO 2004043778A1 HR 0300056 W HR0300056 W HR 0300056W WO 2004043778 A1 WO2004043778 A1 WO 2004043778A1
Authority
WO
WIPO (PCT)
Prior art keywords
ship
hanging structure
line
platform
roller
Prior art date
Application number
PCT/HR2003/000056
Other languages
French (fr)
Inventor
Marko Bekavac
Original Assignee
Marko Bekavac
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marko Bekavac filed Critical Marko Bekavac
Priority to AU2003276486A priority Critical patent/AU2003276486A1/en
Publication of WO2004043778A1 publication Critical patent/WO2004043778A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C5/00—Equipment usable both on slipways and in dry docks
    • B63C5/02—Stagings; Scaffolding; Shores or struts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
    • E04G3/243—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons following the outside contour of a building
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C5/00—Equipment usable both on slipways and in dry docks
    • B63C5/02—Stagings; Scaffolding; Shores or struts
    • B63C2005/025—Stagings, or scaffolding, i.e. constructions providing temporary working platforms on slipways, in building or repair docks, or inside hulls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C5/00—Equipment usable both on slipways and in dry docks
    • B63C5/02—Stagings; Scaffolding; Shores or struts
    • B63C2005/025—Stagings, or scaffolding, i.e. constructions providing temporary working platforms on slipways, in building or repair docks, or inside hulls
    • B63C2005/027—Stages, platforms, or seats suspended adjacent ship hulls on cables, chains, or the like, e.g. boatswain's chairs

Definitions

  • the invention relates to a hanging structure aimed to maintenance of outer surfaces of ships, especially their bows and sterns, and specially on large ships of particularly leaned bow and stern, preventing the crews to wash and maintenance such ships properly.
  • the ship Following grinding and cutting, that is, replacing, of certain parts of the hull, the ship will never again be a compact unit, whereby she will loose significantly in her quality and value and will never again satisfy the hydro-dynamic requirements by which she was built.
  • the essence of the invention is a hanging structure aimed to maintenance of outer surfaces of ship hulls, comprising platform and lines, by which it is possible to reach so far unreachable parts of ship's bow and stern, especially with large ships.
  • the structure consists of two platforms connected in a T-shape structure, hung by lines at the outer side of the ship's hull. Lines and other ancillary equipment may be used for other purposes on board the ship, unrelated to the hanging structure.
  • the entire structure is designed simple, easy to dismantle and store at a proper location.
  • Figure 1 shows assembled hanging structure aimed to performing works at the ship's bow.
  • Figure 2. shows a detail of the Figure 1.
  • the hanging structure aimed to maintenance of ship hull outer surfaces, Figures 1 and 2, consists of platforms A and B, of various lengths and widths, made of various materials, mutually connected to form a T shape.
  • the hanging structure is hung from and fixed to the ship hull's outer surface by several lines.
  • Platform A has the console 1 to which there is fixed the guard rail 5.
  • the guard rail 5 consists of two end poles with rings 8 and one middle pole with ring 9.
  • the end poles 6 are mounted slightly towards the inside of the platform, while the middle pole 7 is slightly shifted from the centre, that is, from the T-shape joint. All three pools are connected with a safety line 10 that is put through the ring at the middle pole and fixed to both end poles.
  • Below the console 1 at its both shorter sides, there are fixed rings 2 and 3 for tying the line, and at the middle of the longer side there is the ring 4.
  • Platform B has the console 11 on which there is mounted the guard rail 12.
  • the guard rail has the vertical pole 13, that is connected to the middle pole 7 at the console 1 with the line 14.
  • the roller 16 At the beginning of the console 11, at its longer outer side, there is the roller 16, firmly fixed to the platform.
  • the roller is protected by the frame 17 which is firmly fixed to the roller.
  • the frame is to prevent the ship's mooring line 21 from its bed at the roller.
  • On the roller there is a permanent lubrication device.
  • At the longer lateral sides of the console 11 there are mounted baskets 18 where paint containers and other tools and ancillary maintenance materials are kept.
  • an additional roller is placed, independent of the very structure, hung from the outer side of the ship and firmly fixed by two steel ropes (one to the bow and the other to the stern).
  • the ship's mooring line is then loosened and moved to the wished position. After this, the roller is released to hang freely at the ship's side, where the hanging structure is to be used.
  • the line that is run under the ship is also moved to adequate position, opposite from the hanging structure.
  • the structure is fitted with air, water, electricity and other connections, and a sufficient number of baskets 18 is fitted to the outer side of the platform B, to enable keeping paint and other items required in cleaning and maintenance of the ship.
  • gun no. 32 of sufficient length to make the painted surface as large as possible without moving the hanging structure.
  • Each crew member working on the hanging structure is to be provided with: protective clothing, safety harness connected to the ship's deck or another floating vessel, permanent radio connection with the ship or a rescue boat, and two lifebelts floating freely in the water and connected to the ship or other vessel.
  • This invention makes a practical and useful structure that enables quick, efficient and economical cleaning and maintenance of large vessels.
  • the hanging structure with its ancillary and fitted elements enables the crew to reach the so far unapproachable parts of the ship's bow and stern.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Spray Control Apparatus (AREA)

Abstract

The hanging structure aimed to maintenance of outer surfaces of ship hull is T-shaped and an independent structure for cleaning and maintenance of large waterborne vessels (ships), in particular their so far unapproachable bow and stern parts, by their crews. It comprises all elements required for efficient, safe and quick cleaning. After use, it can be easily stored at a proper place in the ship. Certain part of the structure can be used to other purposes, independent from the hanging structure, as well. The Hanging structure comprises the platform (A) and the platform (B), mutually firmly connected, that may be of various lengths and widths and made of various materials. The hanging structure is hung from and fixed to the ship’s hull by means of several lines, used for its lifting and moving. On the platforms there are guard rails and baskets for keeping of paint containers and other working accessories. On the platform (B) there is fixed the roller (16) over which there is passed the line (21) that pushes the structure towards the ship’s hull.

Description

HANGING STRUCTURE FOR MAINTENANCE OF OVERHANGING SURFACES OF SHIPS
INVENTION DESCRIPTION
1. FIELD OF APPLICATION
The invention relates to a hanging structure aimed to maintenance of outer surfaces of ships, especially their bows and sterns, and specially on large ships of particularly leaned bow and stern, preventing the crews to wash and maintenance such ships properly.
In the International Patent Classification it is classified as Section B - Performing operations; transporting. Class B 63 - Ships or other waterborne vessels; related equipment. Subclass B 63 B - Ships or other waterborne vessels; equipment for shipping. Main group 59/00 - Hull protection peculiar to vessels. Subgroup 59/06 - Cleaning devices for hulls.
2. TECHNICAL PROBLEM
Professionals are well familiar with the problems encountered by ship crews and owners regarding cleaning and maintenance of hull outer surfaces, especially of unreachable parts of the bow and the stern. The problems are related to rusting, dewiness, dripping and leaking, especially at plate welds and other joints. The situation is even worse when this happens with plates behind which there are ballast tanks. All this causes damages to ships. This requires constructing a hanging scaffold connected to the ship, that would enable the crew an easy approach to unapproachable surfaces of the bow and the stern, for the purpose of regular cleaning and maintenance, regardless of where the ship is situated.
3. STATE OF THE ART
In the past, while the ship was in a port, a car-crane or similar could have been brought along the ship to do the cleaning and maintenance of the bow and the stem. Today, unfortunately, this cannot be done in ports efficiently for several reasons.
Today, maintenance and cleaning of parts of the bow and the stern hard to approach is performed in ports or dry docks where long hand cranes and other structures on dry or floating docks can be used. All such systems are quite expensive because they depend on other service providers' equipment and labour.
Regular maintenance by the ship's crew is therefore preferred.
Following grinding and cutting, that is, replacing, of certain parts of the hull, the ship will never again be a compact unit, whereby she will loose significantly in her quality and value and will never again satisfy the hydro-dynamic requirements by which she was built.
4. DISCLOSURE OF THE INVENTION
The essence of the invention is a hanging structure aimed to maintenance of outer surfaces of ship hulls, comprising platform and lines, by which it is possible to reach so far unreachable parts of ship's bow and stern, especially with large ships. The structure consists of two platforms connected in a T-shape structure, hung by lines at the outer side of the ship's hull. Lines and other ancillary equipment may be used for other purposes on board the ship, unrelated to the hanging structure. The entire structure is designed simple, easy to dismantle and store at a proper location.
5. ILLUSTRATION DESCRIPTIONS
Figure 1. shows assembled hanging structure aimed to performing works at the ship's bow. Figure 2. shows a detail of the Figure 1.
6. DETAILED DESCRIPTION OF AN INVENTION EMBODIMENT
The hanging structure aimed to maintenance of ship hull outer surfaces, Figures 1 and 2, consists of platforms A and B, of various lengths and widths, made of various materials, mutually connected to form a T shape. The hanging structure is hung from and fixed to the ship hull's outer surface by several lines.
Platform A has the console 1 to which there is fixed the guard rail 5. The guard rail 5 consists of two end poles with rings 8 and one middle pole with ring 9. The end poles 6 are mounted slightly towards the inside of the platform, while the middle pole 7 is slightly shifted from the centre, that is, from the T-shape joint. All three pools are connected with a safety line 10 that is put through the ring at the middle pole and fixed to both end poles. Below the console 1 , at its both shorter sides, there are fixed rings 2 and 3 for tying the line, and at the middle of the longer side there is the ring 4.
Platform B has the console 11 on which there is mounted the guard rail 12. The guard rail has the vertical pole 13, that is connected to the middle pole 7 at the console 1 with the line 14. At the beginning of the console 11, at its longer outer side, there is the roller 16, firmly fixed to the platform. The roller is protected by the frame 17 which is firmly fixed to the roller. The frame is to prevent the ship's mooring line 21 from its bed at the roller. On the roller there is a permanent lubrication device. At the longer lateral sides of the console 11 , there are mounted baskets 18 where paint containers and other tools and ancillary maintenance materials are kept.
Before passing the ship's mooring line 21 over the roller 16 and mounting the protective frame 17 on theroller, there should be mounted "monkey ladders" 19 with rungs 20, of sufficient length. The ladders are by one end fixed to the forecastle 31 or deck 30, whereas the lowest rung is passed through platform B of the hanging structure, the platform resting by its weight on the rung. For this very reason, the guard rail 12 is not fixed, this enabling the hanging structure freely to slide through the last opening of the ladders, the one on which it rests. When the hanging structure is positioned as required, the safety pole 15, at the lower end by the roller, is inserted into the console and fixed with a bolt and a nut. The ship's mooring line 21 is placed over the roller 16. As the line passes over the roller, it pushes the hanging structure towards the ship's hull. About the middle of the mooring line, there is tied a weight large enough to easily sink with the line below the ship, enabling pulling the mooring-line by a winch and fitting its eye to a bitt or another part of the ship firm enough, at the opposite side of the ship. The position of the hanging structure is controlled by lines 9, fixed by shackles to adequate rings at the hanging structure.
To the Platform A there are fixed five lines: the hanging lines 22 fixed to rings 8 of the guard rail 5; the hanging line 23 fixed to the ring 2; and the line 24 fixed to the ring 3, used for adjusting at the bow and the stern, tied at the ship's forecastle or deck. The fifth line 25 is fixed by shackle to ring 4 at the under side of the platform and is to stabilise the hanging structure when in the desired position. The line 24 is passed under the ship and pulled by winch as required.
To the platform B, to adequate rings and by means of shackles, there are connected four lines: lines 26 and 27 that maintain the height, where the line 26 is fixed to the ship's bow or deck, and the line 27 is passed under the ship to its opposite side, so that the back part of the hanging structure, if there is tendency of rising, can be lowered into horizontal position. Lines 28 and 29 are run from the side of the ship to the bow and the stern, and enable maintaining the hanging structure position by adjustments from the ship's deck. The above described hanging structure can be adjusted by means of lines both vertically and horizontally, approaching this way the unapproachable parts of the bow and the stem for cleaning and maintenance. After use, all lines van be detached from the hanging structure, used for other purposes or stored.
If the hanging structure is to be moved fore or aft, an additional roller is placed, independent of the very structure, hung from the outer side of the ship and firmly fixed by two steel ropes (one to the bow and the other to the stern). The ship's mooring line is then loosened and moved to the wished position. After this, the roller is released to hang freely at the ship's side, where the hanging structure is to be used. The line that is run under the ship is also moved to adequate position, opposite from the hanging structure. In order to make the crew members working on the hanging structure as independent of the rest of the crew as possible, the structure is fitted with air, water, electricity and other connections, and a sufficient number of baskets 18 is fitted to the outer side of the platform B, to enable keeping paint and other items required in cleaning and maintenance of the ship. For painting, it should be used gun no. 32 of sufficient length, to make the painted surface as large as possible without moving the hanging structure.
Each crew member working on the hanging structure is to be provided with: protective clothing, safety harness connected to the ship's deck or another floating vessel, permanent radio connection with the ship or a rescue boat, and two lifebelts floating freely in the water and connected to the ship or other vessel.
7. INVENTION APPLICATION
This invention makes a practical and useful structure that enables quick, efficient and economical cleaning and maintenance of large vessels.
The hanging structure with its ancillary and fitted elements enables the crew to reach the so far unapproachable parts of the ship's bow and stern.

Claims

PATENT CLAIMS
Hanging structure aimed to maintenance of outer surfaces of ship hull, especially of large waterborne vessels and the so far unapproachable parts of ships' bows and sterns, wh ere in , it comprises two platforms, (A) and (B), mutually firmly connected in a T shape; the platform (A) comprises the console (1) with guard rails (5) and rings for tying the lines that maintain the structure in the required position; the platform (B) comprises the console (11) with guard rail (12), the roller (16) with protective frame (17) and safety pole (15) and rings for tying the lines that maintain the structure in the required position.
The hanging structure as claimed in Claim 1, wh e re in , to the platform (A) there are tied five lines: the hanging line (22) tied to the rings (8) of the guard rail (5), the hanging line (23) tied to the ring
(2) and the line (24) passed under the ship and pulled by winch, connected to the ring
(3) and used to adjust the hanging structure fore and aft, and tied to the ship forecastle or deck, and the fifth line (25) tied to the ring (4) at the underside of the platform and used to stabilise the hanging structure in a given position.
The hanging structure as claimed in Claims 1 and 2, wh ere in , to the platform (B), to adequate rings near the roller, there are tied by means of shackles four lines: lines (26) and (27), used to maintain the vertical position of the hanging structure, where the line (26) is tied to the ship's bow or deck and the line (27) is passed under the ship to its opposite side, so that the back side of the hanging structure, if there is tendency of rising, can be lowered into horizontal position; lines (28) and (29) are run from the side of the ship to the bow and the stern, and enable maintaining the hanging structure position by adjustments from the ship's deck.
4. The hanging structure as claimed in Claim 1, wh e re in , the roller (16) is firmly fixed to the outer side of the console (11), and the protective frame (17) is firmly fixed to the roller (16).
5. The hanging structure as claimed in Claims 1 and 4, wh e re in , the ship's mooring line (21) is placed over the roller (16) by which line the hanging structure is pushed towards the ship's hull, while the protective frame (17) prevents slipping of the line, which line passes over the roller that is equipped with its own lubrication device.
6. The hanging structure as claimed in Claim 1, wh ere i n , it is equipped with an additional roller, independent of the hanging structure, hung by the side of the hull and fixed by two steel ropes (one to the bow and the other to the stern), used to move the hanging structure fore and aft.
PCT/HR2003/000056 2002-11-13 2003-11-10 Hanging structure for maintenance of overhanging surfaces of ships WO2004043778A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003276486A AU2003276486A1 (en) 2002-11-13 2003-11-10 Hanging structure for maintenance of overhanging surfaces of ships

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HRP20020895A 2002-11-13
HR20020895A HRP20020895A2 (en) 2002-11-13 2002-11-13 Hanging structure aimed to maintenance of outer surfaces of ships

Publications (1)

Publication Number Publication Date
WO2004043778A1 true WO2004043778A1 (en) 2004-05-27

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ID=32310063

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HR2003/000056 WO2004043778A1 (en) 2002-11-13 2003-11-10 Hanging structure for maintenance of overhanging surfaces of ships

Country Status (3)

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AU (1) AU2003276486A1 (en)
HR (1) HRP20020895A2 (en)
WO (1) WO2004043778A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020107423B3 (en) * 2020-03-18 2021-03-25 Neptun Ship Design Gmbh Process for the assembly of lightweight balconies on a vertical wall, work platform for welding and assembly work and lightweight balconies for implementing the process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1506114A (en) * 1921-05-06 1924-08-26 Donaggio Alfredo Ship scaffold
US4421205A (en) * 1982-02-01 1983-12-20 The United States Of America As Represented By The Secretary Of The Navy Magnetic ship's hog line holder
US4921070A (en) * 1986-01-09 1990-05-01 Magill Alan R Temporary suspended access equipment - a builder's cradle
GB2280468A (en) * 1993-07-30 1995-02-01 Henry Thomas Reed Suspended platform scaffolding
US20020041794A1 (en) * 2000-10-05 2002-04-11 Roger Bostelman Suspended dry dock platform

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1506114A (en) * 1921-05-06 1924-08-26 Donaggio Alfredo Ship scaffold
US4421205A (en) * 1982-02-01 1983-12-20 The United States Of America As Represented By The Secretary Of The Navy Magnetic ship's hog line holder
US4921070A (en) * 1986-01-09 1990-05-01 Magill Alan R Temporary suspended access equipment - a builder's cradle
GB2280468A (en) * 1993-07-30 1995-02-01 Henry Thomas Reed Suspended platform scaffolding
US20020041794A1 (en) * 2000-10-05 2002-04-11 Roger Bostelman Suspended dry dock platform

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020107423B3 (en) * 2020-03-18 2021-03-25 Neptun Ship Design Gmbh Process for the assembly of lightweight balconies on a vertical wall, work platform for welding and assembly work and lightweight balconies for implementing the process

Also Published As

Publication number Publication date
AU2003276486A1 (en) 2004-06-03
HRP20020895A2 (en) 2004-08-31

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