WO2008153498A1 - Device in connection with a ramp or any other covering element - Google Patents

Device in connection with a ramp or any other covering element Download PDF

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Publication number
WO2008153498A1
WO2008153498A1 PCT/SE2008/050706 SE2008050706W WO2008153498A1 WO 2008153498 A1 WO2008153498 A1 WO 2008153498A1 SE 2008050706 W SE2008050706 W SE 2008050706W WO 2008153498 A1 WO2008153498 A1 WO 2008153498A1
Authority
WO
WIPO (PCT)
Prior art keywords
ramp
jacks
covering element
turned
along
Prior art date
Application number
PCT/SE2008/050706
Other languages
French (fr)
Inventor
Hans SALÉN
Henrik Westermark
Original Assignee
Tts Ships Equipment Ab
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 Tts Ships Equipment Ab filed Critical Tts Ships Equipment Ab
Publication of WO2008153498A1 publication Critical patent/WO2008153498A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/14—Arrangement of ship-based loading or unloading equipment for cargo or passengers of ramps, gangways or outboard ladders ; Pilot lifts
    • B63B27/143—Ramps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/28—Loading ramps; Loading docks
    • B65G69/2805—Loading ramps; Loading docks permanently installed on the dock
    • B65G69/2811—Loading ramps; Loading docks permanently installed on the dock pivoting ramps
    • B65G69/2817—Loading ramps; Loading docks permanently installed on the dock pivoting ramps with fluid-operated means

Definitions

  • the present invention relates to a device at a turnably mounted ramp or another turnably mounted covering element at an opening and which is actuatable by a number of fluid piston cylinder jacks to be turned between a turned-out opened position and a turned-up closed position.
  • the turning motions of the ramp are controlled by means of a jack situated on each side of the ramp in the form of a hydraulic cylinder.
  • the dimensions of said driving cylinders are important as for ramps on greater vessels, which mean that the total width of ramp having the appur- tenant laterally positioned driving cylinders becomes great.
  • a device which in all essentials is characterized in that pair-wise fluid piston cylinder jacks are mounted on each side of said ramp/covering element and having mounting attachments displaced from each other as seen along the turning plane of the jacks and actuatable to turn the ramp/covering element exceeding 90° between a vertical end po- sition and a turned-down end position.
  • Figs. 1-4 show examples of the invention, Fig. 1 showing a ramp in turned-out driving position,
  • Fig. 4 showing a top view of a side part of the ramp and having laterally positioned pairs of hydraulic cylinders
  • Figs. 5-9 show examples of known drivings for different vessel ramps, and having the ramps turned to closed and open, respectively, positions.
  • the invention relates to a ramp, which is manoeuvred by jacks in the form of two hydraulic cylinders per ramp side. Till now, especially stern, side and bow ramps have been manoeuvred by one hydraulic cylinder per side or by winch/jigger winch and rope sheaves and wires placed on upper deck/lower deck.
  • the hydraulic cylinders should be of the same length and dimension for simple spare part handling. It gives fewer draw- ings to handle, the same accessories and thereby lower costs .
  • a said ramp 3 or covering element is actuatable by a number of fluid piston cylinder jacks 6, 7 to be turned between a turned-out opened position I and a turned-up closed position II the opening 5. See fig.l and fig. 3, respectively. In open position, it is enabled for vehicles and persons to drive and walk, respectively, between land 8 and the vessel 4 and the thereof cargo deck 9 via the ramp 3 above water 10.
  • pair-wise fluid piston cylinder jacks 6, 7 or more mounted on each side 11 of said ramp/covering element 3.
  • the mounting attachments 12, 13 and 14, 15, respectively, of said jacks are displaced from each other as seen along the turning plane 16 thereof.
  • the double pairs of jacks 6, 7 are arranged and dimensioned in such a way that they together are actuatable to turn the ramp/covering element 3 a distance S exceeding 90°, between a said vertical end position II and a turned-down downward leaning end position I.
  • Jacks in the form of pair-wise hydraulic cylin- ders 6, 7 are mounted in line with each other at mutual distance A, B from each other and with one of the jacks 6 situated obliquely above the other jack 7, substantially parallel to each other.
  • One of the hydraulic cylinders 6 in the respec- tive pair of jacks 6, 7 is mounted closest to said opening 5 by the fixed mounting 14 thereof and closest to the outer end 3A of the ramp by the ramp mounting 12 thereof.
  • the two hydraulic cylinders 6, 7 in the respective pair on each side 11, 11 of the ramp/covering element 3 are mounted at sub- stantially equal distance B and A, respectively, from each other at the fixed mountings 14, 15 thereof and at the ramp mountings 12, 13 thereof, respectively, as seen along the length extension 17 of the ramp and of the appurtenant vessel.
  • the two hydraulic cylinders 6, 7 in the respective pair are in that connection mounted at closer distance from the mounting end 3B of the pivot joint 2 of the ramp/covering element than the outer free turnable end 3A thereof.
  • connection at least some one of said pivot mountings 12, 13 is connected movable to the ramp/covering element 3 along the length extension thereof.
  • the connection is formed by a track along which steer- ings for one end of the respective hydraulic cylinder is mova- bly actuatable. However, this is not shown in the drawings.
  • a number of stops are in that connection also arranged along said track to in desired positions be able to stop the displacement of the hydraulic cylinders along the track.
  • the mountings 12, 13 and 14, 15, respectively, for the said hydraulic cylinders 6, 7 may be situated at substantially equal distance C, D, as seen from the ramp 3 and from the fixed mounting-carrying element 22 thereof, respectively, on projecting mounting fasteners 18, 19, 20, 21 therefor.
  • the ramp 3 having the appurtenant hydraulically driven hydraulic cylinders 6, 7 may freely be arranged at stem, at stern 23 and/or at side of a vessel 4 in question.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Actuator (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

The present invention relates to a device (1) at a turnably mounted ramp (3) or some other turnably mounted covering element at an opening (5) and which is actuatable by a number of fluid piston cylinder jacks (6, 7) to be turned between a turned-out opened position (I) and a turned-up closed position (II). According to the invention, pair-wise fluid piston cylinder jacks (6, 7) are mounted on each side of said ramp/covering element (3) and having mounting attachments (12- 15) displaced from each other as seen along the turning plane of the jacks and actuatable to turn the ramp/covering element (3) exceeding 90° between a vertical end position and a turned- down end position (I).

Description

Device in connection with a ramp or any other covering element
The present invention relates to a device at a turnably mounted ramp or another turnably mounted covering element at an opening and which is actuatable by a number of fluid piston cylinder jacks to be turned between a turned-out opened position and a turned-up closed position. Usually, the turning motions of the ramp are controlled by means of a jack situated on each side of the ramp in the form of a hydraulic cylinder. The dimensions of said driving cylinders are important as for ramps on greater vessels, which mean that the total width of ramp having the appur- tenant laterally positioned driving cylinders becomes great.
There is often a lack of space at the side of the ramps, which are desired to make as wide as the width of the vessel allows. In order to manage to turn the heavy ramps, one unfortunately has to choose great driving cylinders having great dimensions, not at least on that occasion laterally.
A thought is then to instead of one single great driving cylinder besides the ramp be able to split up the driving on a plurality of smaller driving cylinders. It is known by, for instance, JP 2003343512 to arrange laterally situated double hydraulic cylinders to drive ropes, which in turn are arranged to actuate a ramp to be able to writhe around a vertical pivot joint. However, nothing is mentioned of how to proceed to solve the driving arrangement to obtain a complete driving . Therefore, the main object of the present invention is primarily to by simple and efficiently working means be able to solve said problems, especially at a turnably mounted ramp for a vessel but also other covering elements on board a vessel or on other vehicles or ashore.
Said object is attained by means of a device according to the present invention, which in all essentials is characterized in that pair-wise fluid piston cylinder jacks are mounted on each side of said ramp/covering element and having mounting attachments displaced from each other as seen along the turning plane of the jacks and actuatable to turn the ramp/covering element exceeding 90° between a vertical end po- sition and a turned-down end position.
The present invention is described below in the form of a preferred embodiment example, reference being made to the accompanying drawings, in which
Figs. 1-4 show examples of the invention, Fig. 1 showing a ramp in turned-out driving position,
Fig. 2 showing the ramp elevated to an intermediate position,
Fig. 3 showing the ramp elevated to a closed stowing position,
Fig. 4 showing a top view of a side part of the ramp and having laterally positioned pairs of hydraulic cylinders, and
Figs. 5-9 show examples of known drivings for different vessel ramps, and having the ramps turned to closed and open, respectively, positions.
The invention relates to a ramp, which is manoeuvred by jacks in the form of two hydraulic cylinders per ramp side. Till now, especially stern, side and bow ramps have been manoeuvred by one hydraulic cylinder per side or by winch/jigger winch and rope sheaves and wires placed on upper deck/lower deck.
Advantages of a "Dual cylinder arrangement ": - Increased instantaneous spectra thanks to separated attachments of the hydraulic cylinders.
- The hydraulic cylinders should be of the same length and dimension for simple spare part handling. It gives fewer draw- ings to handle, the same accessories and thereby lower costs .
- Decreased space requirement laterally of the ramp in comparison with single cylinder arrangements . Because the driveway width of the ramp now corresponds to the entire width of the hold, there is a lack of space for housing the actuating cylinders.
- Lower cost for the manufacture of cylinders in standard dimensions in comparison with extremely great cylinder dimensions. It has turned out over the years that the ramps be- come wider and thereby heavier and heavier. This leads to the fact that the cylinder dimensions increase to dimensions rarely occurring in the production and on the market, and thereby results in high prices.
A device 1 at a ramp 3 preferably turnably mounted around a horizontal mounting shaft 2 or another turnably mounted covering element on board a vessel 4, another vehicle or ashore at an opening 5, which can be exposed and closed, respectively, thereby, is shown as example in fig. 1. A said ramp 3 or covering element is actuatable by a number of fluid piston cylinder jacks 6, 7 to be turned between a turned-out opened position I and a turned-up closed position II the opening 5. See fig.l and fig. 3, respectively. In open position, it is enabled for vehicles and persons to drive and walk, respectively, between land 8 and the vessel 4 and the thereof cargo deck 9 via the ramp 3 above water 10.
According to the present invention, there are pair-wise fluid piston cylinder jacks 6, 7 or more mounted on each side 11 of said ramp/covering element 3. In that connec- tion, the mounting attachments 12, 13 and 14, 15, respectively, of said jacks are displaced from each other as seen along the turning plane 16 thereof.
The double pairs of jacks 6, 7 are arranged and dimensioned in such a way that they together are actuatable to turn the ramp/covering element 3 a distance S exceeding 90°, between a said vertical end position II and a turned-down downward leaning end position I.
Jacks in the form of pair-wise hydraulic cylin- ders 6, 7 are mounted in line with each other at mutual distance A, B from each other and with one of the jacks 6 situated obliquely above the other jack 7, substantially parallel to each other.
One of the hydraulic cylinders 6 in the respec- tive pair of jacks 6, 7 is mounted closest to said opening 5 by the fixed mounting 14 thereof and closest to the outer end 3A of the ramp by the ramp mounting 12 thereof. Preferably, the two hydraulic cylinders 6, 7 in the respective pair on each side 11, 11 of the ramp/covering element 3 are mounted at sub- stantially equal distance B and A, respectively, from each other at the fixed mountings 14, 15 thereof and at the ramp mountings 12, 13 thereof, respectively, as seen along the length extension 17 of the ramp and of the appurtenant vessel. The two hydraulic cylinders 6, 7 in the respective pair are in that connection mounted at closer distance from the mounting end 3B of the pivot joint 2 of the ramp/covering element than the outer free turnable end 3A thereof. In that connection, at least some one of said pivot mountings 12, 13 is connected movable to the ramp/covering element 3 along the length extension thereof. The connection is formed by a track along which steer- ings for one end of the respective hydraulic cylinder is mova- bly actuatable. However, this is not shown in the drawings. A number of stops are in that connection also arranged along said track to in desired positions be able to stop the displacement of the hydraulic cylinders along the track.
Furthermore, the mountings 12, 13 and 14, 15, respectively, for the said hydraulic cylinders 6, 7 may be situated at substantially equal distance C, D, as seen from the ramp 3 and from the fixed mounting-carrying element 22 thereof, respectively, on projecting mounting fasteners 18, 19, 20, 21 therefor. The ramp 3 having the appurtenant hydraulically driven hydraulic cylinders 6, 7 may freely be arranged at stem, at stern 23 and/or at side of a vessel 4 in question.
Maybe not so much force is gained in comparison with letting pair-wise hydraulic cylinders 6, 7 replace single hydraulic cylinders having one hydraulic cylinder 100 on each side of a ramp 3; 300 if it is estimated that in all essentials as much hydraulic fluid is used. What is gained is, in addition to safety and that it is possible to utilize significantly more inexpensive and lighter standard hydraulic cylinder with the same supply of spare parts, that it is possible to significantly save space at the sides of the ramp. Up to approx. 0,5 m in space saving has been calculated to be gained by arranging pair-wise hydraulic cylinders in longitudinal direction according to what has been indicated above and approx. 500 kg of weight saving.
The invention is naturally not limited to the embodiments described above and shown in the accompanying draw¬ ings. Modifications are feasible, particularly as for the nature of the different parts, or by usage of equivalent technique, without departing from the protection area of the invention, such as it is defined in the claims.

Claims

1. A device (1) at turnably mounted ramp (3) or another turnably mounted covering element at an opening (5) and which is actuatable by a number of fluid piston cylinder jacks (6, 7) to be turned between a turned-out opened position (I) and a turned-up closed position (II), characterized in that pair-wise fluid piston cylinder jacks (6, 7) are mounted on each side of said ramp/covering element and having mounting attachments (12-15) displaced from each other as seen along the turning plane (16) of the jacks and actuatable to turn the ramp/covering element (3) exceeding 90° between a vertical end position (II) and a turned-down end position (I) .
2. Device according to claim 1, characterized in that pair-wise fluid piston cylinder jacks (6, 7), formed as hydraulic cylinders, are mounted in line with each other at mutual distance (A, B) .
3. Device according to claim 2, characterized in that one of the jacks (6) in the respective pair is mounted closest to said opening (5) by a fixed mounting (14) and closest to the outer free turnable end (3A) of the ramp by a ramp mounting (12).
4. Device according to claim 3, characterized in that the two jacks (6, 7) in the respective pair are mounted at substantially equal distance (A, B) from each other at their fixed mountings (14, 15) and at their ramp mountings (12, 13), respectively, as seen along the length extension (17) of the ramp (3) and of the appurtenant vessel (4).
5. Device according to any one of claims 2-4, characterized in that the two jacks (6, 7) in the respective pair are mounted closer to the mounting end (3B) of the pivot joint (2) of the ramp/covering element than the outer free turnable end (3A) thereof.
6. Device according to any one of claims 2-5, characterized in that the mountings (12, 13 and 14, 15, respectively,) for the said jacks (6, 7) are situated at substan- tially equal distance (C, D) as seen from the driveway surface (3A) of the ramp (3) and from the fixed mounting-carrying element (22) of the hydraulic cylinders (6, 7), respectively.
7. Device according to any one of claims 2-6, characterized in that at least some one of said pivot mountings (12, 13) is connected movable to the ramp/covering element along the length extension thereof.
8. Device according to claim 7, characterized in that the connection is formed of a track along which steerings for one end of the respective jacks is movably actuatable.
9. Device according to claim 8, characterized in that a number of stops are arranged along said track to in de- sired positions stop the displacement of the jacks along the track.
10. Device according to any one of the above claims, characterized in that the ramp (3) having the appurte- nant hydraulically driven hydraulic cylinder jacks (6, 7) are arranged at stem, stern (23) and/or side of a vessel (4).
PCT/SE2008/050706 2007-06-13 2008-06-12 Device in connection with a ramp or any other covering element WO2008153498A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0701441A SE531317C2 (en) 2007-06-13 2007-06-13 Device for ramp or other covering element
SE0701441-8 2007-06-13

Publications (1)

Publication Number Publication Date
WO2008153498A1 true WO2008153498A1 (en) 2008-12-18

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010102420A2 (en) * 2009-03-13 2010-09-16 Mueller Peter A Lowering and securing means on a vessel
WO2011014114A1 (en) * 2009-07-28 2011-02-03 Tts Ships Equipment Ab A length changeable ship ramp
CN103552859A (en) * 2013-11-15 2014-02-05 振石集团恒石纤维基业有限公司 Vehicle loading and unloading bridging device
CN105129030A (en) * 2015-08-10 2015-12-09 广船国际有限公司 Device for entering ship supplies into cabin
CN106143807A (en) * 2016-07-29 2016-11-23 广船国际有限公司 A kind of equipment enters cabin platform assembly
EP3168132A1 (en) 2015-11-13 2017-05-17 AMARE s.r.l. Tiltable and retractable gangway for boats

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592990A (en) * 1982-06-30 1984-01-09 Nippon Marine Eng Kk Ramp device for ship
US5241722A (en) * 1991-01-31 1993-09-07 Mcdonnell Douglas Corporation Ramp system
WO2001068442A1 (en) * 2000-03-17 2001-09-20 Tts Ships Equipment Ab Device at a loading ramp on ships
JP2003343512A (en) * 2002-05-28 2003-12-03 Kayaba Ind Co Ltd Differential fluid pressure circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592990A (en) * 1982-06-30 1984-01-09 Nippon Marine Eng Kk Ramp device for ship
US5241722A (en) * 1991-01-31 1993-09-07 Mcdonnell Douglas Corporation Ramp system
WO2001068442A1 (en) * 2000-03-17 2001-09-20 Tts Ships Equipment Ab Device at a loading ramp on ships
JP2003343512A (en) * 2002-05-28 2003-12-03 Kayaba Ind Co Ltd Differential fluid pressure circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; AN 2004-017183 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010102420A2 (en) * 2009-03-13 2010-09-16 Mueller Peter A Lowering and securing means on a vessel
WO2010102420A3 (en) * 2009-03-13 2011-09-01 Mueller Peter A Lowering and securing means on a vessel
WO2011014114A1 (en) * 2009-07-28 2011-02-03 Tts Ships Equipment Ab A length changeable ship ramp
CN102548838A (en) * 2009-07-28 2012-07-04 Tts海运公司 A length changeable ship ramp
US8402584B2 (en) 2009-07-28 2013-03-26 Tts Marine Ab Length changeable ship ramp
CN102548838B (en) * 2009-07-28 2015-04-01 Tts海运公司 A length changeable ship ramp
CN103552859A (en) * 2013-11-15 2014-02-05 振石集团恒石纤维基业有限公司 Vehicle loading and unloading bridging device
CN105129030A (en) * 2015-08-10 2015-12-09 广船国际有限公司 Device for entering ship supplies into cabin
EP3168132A1 (en) 2015-11-13 2017-05-17 AMARE s.r.l. Tiltable and retractable gangway for boats
CN106143807A (en) * 2016-07-29 2016-11-23 广船国际有限公司 A kind of equipment enters cabin platform assembly
CN106143807B (en) * 2016-07-29 2018-03-27 广船国际有限公司 A kind of equipment enters cabin platform assembly

Also Published As

Publication number Publication date
SE0701441L (en) 2008-12-14
SE531317C2 (en) 2009-02-24

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