EP0048199A1 - System for opening and closing hatch covers - Google Patents

System for opening and closing hatch covers Download PDF

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Publication number
EP0048199A1
EP0048199A1 EP81401393A EP81401393A EP0048199A1 EP 0048199 A1 EP0048199 A1 EP 0048199A1 EP 81401393 A EP81401393 A EP 81401393A EP 81401393 A EP81401393 A EP 81401393A EP 0048199 A1 EP0048199 A1 EP 0048199A1
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EP
European Patent Office
Prior art keywords
panel
hatch
pivoting arm
panels
storage station
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP81401393A
Other languages
German (de)
French (fr)
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EP0048199B1 (en
Inventor
Kikuo Yamada
Kiyoshi Yokohama Park Town Building Onodera
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mac Gregor International SA
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Mac Gregor International SA
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Publication date
Application filed by Mac Gregor International SA filed Critical Mac Gregor International SA
Publication of EP0048199A1 publication Critical patent/EP0048199A1/en
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Publication of EP0048199B1 publication Critical patent/EP0048199B1/en
Expired legal-status Critical Current

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    • 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
    • B63B19/19—Hatch covers foldable
    • B63B19/197—Hatch covers foldable actuated by fluid pressure

Definitions

  • the present invention generally relates and essentially relates to a device for opening and closing hatch covers in particular, but not exclusively, of ships as well as the various applications and uses resulting from its implementation and the systems, assemblies, apparatus, ships or other vehicles, buildings, equipment and installations provided with such devices. More particularly, the invention relates to a device for opening and closing a hatch cover of the type composed of at least three panels foldable together in the form of an accordion at the location or storage station in the position of opening.
  • the present invention aims to solve the various problems of this kind encountered in the devices of the prior art for opening and closing hatch covers of the folding accordion type and in particular to eliminate the aforementioned drawbacks.
  • the main object of the present invention is to create a device for opening and closing hatch covers of the folding accordion type, in which the number and types of parts or structural parts are significantly reduced, thus making the whole construction simple and less expensive.
  • a device for opening and closing hatch covers of the folding accordion type, consisting of at least three panels each having end edge portions hinged to that of adjacent panels and intended for be folded together in the form of an accordion in a storage station with the first panel, which is located closest to the storage station in the closed position of the hatch, provided with elements forming articulated arms each at the storage station storage.
  • This device comprises a pivoting arm having one end articulated to a support table adjacent to the storage station and being intended to be moved by pivoting between a horizontal waiting or inactive position located below horizontal studs or tenons provided on at least one lateral surface of the odd number panels counted from said first panel, and a vertical tilting position in which the pivoting arm will have tilted each odd number panel in a vertical position; means for actuating said pivoting arm, such as hydraulic cylinders, provided on the bridge in the vicinity of said support table and having their active end connected to said pivoting arm; and drive or control means, such as an endless chain, connected to the last panel which is farthest from the first panel and intended to move said last panel in reciprocating movement between a hatch closing position and a position of storage.
  • the device according to the invention is characterized in that the aforementioned pivoting arm has a telescopic structure so as to allow its length to be varied selectively between its end connected to the aforementioned support table and its opposite end.
  • a hatch cover 20 of the folding accordion type consisting of a plurality of panels (for example six as shown in the drawing) 11,12, 13,14 , 15 and 16 placed on the hatch coaming 17 and the device 10 according to the present invention.
  • Each of the panels 11, 12, 13, 14 and 15 is connected, to adjacent panels, respectively by means of articulation joints or hinges 23a, 23b, 23c, 23d and 23e.
  • the storage station 18 is placed in the vicinity of the left end of the hatch coaming 17. In the hatch closing position of the panels, as indicated in FIG.
  • the panel 11 (called “first panel” below), closest to the storage station 18, is provided at its end on the left, at least one arm element 21 which is articulated by one end thereof to the storage station 18 by means of a pivot axis 22. Consequently, the first panel 11 can pivot in the direction clockwise rotation about the pivot axis 22 from the horizontal position as shown in Figure 1 to the vertical stored position.
  • Each of the panels 11, 13 and 15 of odd number, counted to the right from the first panel 11, is respectively provided with a horizontal stud or pin 4A, 4B and 4C, each of which projects outwards from at least one side edge of each panel.
  • the last panel that is to say the sixth panel 16, is provided with a coupling or connecting member 5 which hangs from at least one lateral edge of this panel.
  • each of the horizontal studs or tenons 4A, 4B, 4C can be respectively provided with an appropriate coaxial roller.
  • the third panel 13, the fifth panel 15 and the sixth panel 16 are each provided respectively with a wheel 24A, 24B and 24C which all roll on and along a guide rail (not shown) provided on the coaming d hatch 17.
  • the device 10 comprises a pivoting arm 1 having one end articulated to a support table 9 by means of a horizontal axis 6, which support table 9 is placed on the bridge 19 in the vicinity of the storage station 18.
  • the pivoting arm 1 consists of a tubular element 31 having its left end articulated to the support table 9 by means of the horizontal axis 6 and a sliding element 32 of telescopic structure inserted so sliding in the tubular element 31 from the right end thereof.
  • a means for actuating this telescopic structure such as a hydraulic cylinder 25 with cylinder and piston, is provided in the tubular element 31 in the vicinity of the left end thereof.
  • An active end 25W of the hydraulic cylinder 25, and for example of its piston rod, is connected to the sliding element 32. Consequently, the sliding element 32 will slide along the tubular element 31 under the action of the cylinder hydraulic 25 so that the distance between the horizontal axis 6 and the right end of the sliding element 32 is adjusted as desired.
  • a hydraulic cylinder 2 for example of the cylinder and piston type, having one end articulated to a yoke 26 provided on the bridge 19, is connected by its other end, that is to say by its active end 2W, to the tubular element 31 of the pivoting arm 1. Consequently, the pivoting arm 1 will move in reciprocating motion under the action of the hydraulic cylinder 2 between a horizontal position represented in FIGS. 1 and 2 and a vertical position represented in FIG. 3 More particularly, the vertical position or height of the horizontal axis 6 is chosen so that the pivoting arm 1, in the horizontal position, will extend from the horizontal axis 6 towards the hatch coaming 17 by being at a level below that of the horizontal studs or tenons 4A, 4B and 4C.
  • the horizontal position of the swivel arm 1 is a standby or inactive position in which the swivel arm 1 of telescopic structure is extended or extended to a level located below the horizontal studs or tenons 4A, 4B and 4C.
  • the vertical position of the pivoting arm 1, as shown in FIGS. 3, 5 and 7, is a position in which the pivoting arm 1 will force each of the panels of odd number 11, 13 and 15 to pivot from the horizontal position to the vertical storage position.
  • the sliding element 32 of the pivoting arm 1 with telescopic structure is long enough to extend to the right respectively beyond the horizontal studs 4A, 4B and 4C of the panels of odd number 11, 13 and 15 when the sliding element 32 is pushed to the right, as indicated in FIG. 2, by the action of the hydraulic cylinder 25.
  • an endless chain 3 passes over a pair of chain wheels 7 and 8 located respectively at both ends of the coaming hatch 17. Either of the two chain wheels 7 and 8 is connected to a suitable drive motor means (not shown).
  • This control means is of the reversible type. Latching means and appropriate locking or blocking means are provided between the output shaft or driving the control means and the chain wheel 7 or 8 mounted thereon.
  • guide chain wheels and necessary play or slack take-up chain wheels can be provided for the endless chain.
  • the upper strand 3U of the endless chain 3 is located opposite the underside of each of the panels 11 to 16 and is connected to the coupling or connecting member 5 linked pendantly to the last panel 16. Consequently , the sixth panel 16 will be moved together with the other panels along the guide rail on the hatch coaming 17 by the operation of the endless chain 3.
  • the connecting member 5, linked hanging from the last panel 16, will pull the upper strand 3U of the endless chain 3 to the left.
  • the movement of the upper strand 3U to the left is carried out without difficulty since an appropriate toothed locking mechanism or similar unidirectional or unidirectionally disengageable transmission or coupling member is provided on the driving chain wheel 8.
  • the control cylinder 25, to actuate the telescopic structure 32 is actuated so as to retract the sliding element 32 inside the tubular element 31 of the pivoting arm 1 thereby reducing the length of the pivoting arm 1 as shown in FIG. 4.
  • the pivoting arm 1 will be brought back to the horizontal position without being hindered by the horizontal stud 4B of the third panel 13 which is located at the location adjacent to the storage station as shown in Figure 4.
  • each panel will not be returned to the hatch closed position, since the sixth panel 16 is firmly held in the position shown in Figure 4 by the endless chain 3.
  • control cylinder 25 to actuate the telescopic structure, is actuated again so as to increase the length of the pivoting arm 1 and to place the projecting end 32 thereof below the horizontal stud 4B.
  • the hydraulic cylinder 2 is actuated to rotate the pivoting arm counterclockwise around the horizontal axis 6, thereby bringing the third panel 13 into the vertical storage position in one single movement as indicated in FIG. 5.
  • the fourth panel 14 is folded against the third panel 13, the following panels 15 and 16 being pulled to the position adjacent to the storage station 18.
  • pivoting arm 1 is in contact with the horizontal stud 4B during the pulling movement of the fourth and third panel 14 and 13 and it is in contact with the horizontal stud 4A during the pulling movement of the second and first panels 12 and 11 and it will pivot slowly while supporting the weight of the panels, so that the panels are successively pulled at their speed properly adjusted fall or descent.
  • each panel is brought from its position placed above the hatch coaming to the storage position in a single movement without any panel being held in an intermediate position. any and it is therefore possible to eliminate unstable positions, sudden or violent rolling and a false operation of the panels.
  • the advantages of the present invention lie in the fact that it is not necessary to stop or control or regulate the operation of each panel due to the presence of the horizontal studs 4A, 4B, 4C by turning the pivoting arm 1 in the horizontal position and in that the hydraulic oil circuit is simplified to supply the hydraulic cylinder 2 and the control cylinder 25 for operate the telescopic structure as well as the fact that the entire system works smoothly and safely.

Abstract

L'invention concerne un dispositif (10) en manoeuvre de panneaux (11-16) d'écoutille (17) articulés les uns aux autres de façon à être repliables en accordéon dans une station de rangement (18) attenante à une extrémité de l'écoute, le premier panneau (11) étant articulé à cette extrémité. Le dispositif comprend une chaîne sans fin (3) s'étendant le long de l'hiloire d'écoutille (17) et sélectivement accouplable avec un moyen d'entraînement pour tirer les panneaux de la position d'ouverture à la position de fermeture, ainsi qu'un bras pivotant (1) télescopiquement extensible et rétractable, articulé à ladite extrémité d'écoutille et oscillant entre une position verticale relevée et une position horizontale abaissée en dessous du niveau de goujons (4) s'étendant latéralement en saillie de chaque panneau. Le bras pivotant est ainsi sélectivement extensible pour venir en contact au goujon du panneau le plus proche de ladite extrémité d'écoutille. L'invention est applicable aux panneaux d'écoutille de navire.The invention relates to a device (10) for operating hatch covers (11-16) (17) hinged together so as to be foldable in accordion fashion in a storage station (18) adjoining one end of the listening, the first panel (11) being articulated at this end. The device comprises an endless chain (3) extending along the hatch coaming (17) and selectively coupling with a driving means for pulling the panels from the open position to the closed position, as well as a telescopically extendable and retractable pivoting arm (1), articulated at said hatch end and oscillating between a raised vertical position and a lowered horizontal position below the level of studs (4) extending laterally projecting from each sign. The pivoting arm is thus selectively extendable to come into contact with the stud of the panel closest to said hatch end. The invention is applicable to ship hatch covers.

Description

La présente invention concerne généralement et a essentiellement pour objet un dispositif d'ouverture et de fermeture de panneaux d'écoutille notamment, mais non exclusivement, de navire ainsi que les diverses applications et utilisations résultant de sa mise en oeuvre et les systèmes, ensembles, appareils, navires ou autres véhicules, bâtiments, équipements et installations pourvus de tels dispositifs. Plus particulièrement, l'invention vise un dispositif d'ouverture et de fermeture d'une couverture d'écoutille du type composé d'au moins trois panneaux repliables ensemble en forme d'accordéon à l'emplacement ou station de rangement en position d'ouverture.The present invention generally relates and essentially relates to a device for opening and closing hatch covers in particular, but not exclusively, of ships as well as the various applications and uses resulting from its implementation and the systems, assemblies, apparatus, ships or other vehicles, buildings, equipment and installations provided with such devices. More particularly, the invention relates to a device for opening and closing a hatch cover of the type composed of at least three panels foldable together in the form of an accordion at the location or storage station in the position of opening.

Dans l'état connu de la technique antérieure, il existe des panneaux d'écoutille du type repliable en accordéon, se composant d'un certain nombre de panneaux, tandis que des barres de torsion et des moyens de commande hydraulique sont souvent prévus à l'intérieur des panneaux adjacents à des joints articulés particuliers, de façon que tous les panneaux puissent être repliés ensemble automatiquement. Cependant, les tuyauteries et raccords ou agencements à l'intérieur des panneaux deviennent ainsi compliqués et coûteux. Lorsque des moyens d'actionnement hydraulique sont prévus à l'extérieur des panneaux, tout le mécanisme devient d'autant plus compliqué qu'il y a un plus grand nombre de panneaux. Beaucoup de rails ou chemins de guidage et de rampes accélératrices sont nécessaires en augmentant ainsi les frais de fabrication et en rendant l'entretien difficile et incommode.In the known state of the prior art, there are hatch covers of the folding accordion type, consisting of a number of panels, while torsion bars and hydraulic control means are often provided at the rear. interior of the panels adjacent to particular articulated joints, so that all the panels can be folded together automatically. However, the pipes and fittings or arrangements inside the panels thus become complicated and expensive. When hydraulic actuation means are provided for outside the panels, the whole mechanism becomes all the more complicated as there are a greater number of panels. Lots of guide rails or paths and accelerating ramps are required, thereby increasing manufacturing costs and making maintenance difficult and inconvenient.

La présente invention vise à résoudre les divers problèmes de ce genre rencontrés dans les appareils de la technique antérieure pour ouvrir et fermer des panneaux d'écoutille du type repliable en accordéon et notamment à supprimer les inconvénients précités.The present invention aims to solve the various problems of this kind encountered in the devices of the prior art for opening and closing hatch covers of the folding accordion type and in particular to eliminate the aforementioned drawbacks.

La présente invention a principalement pour but de créer un dispositif pour ouvrir et fermer des panneaux d'écoutille du type repliable en accordéon, dans lequel le nombre et les types de pièces ou parties de structure sont sensiblement réduits en rendant ainsi toute la construction simple et moins coûteuse.The main object of the present invention is to create a device for opening and closing hatch covers of the folding accordion type, in which the number and types of parts or structural parts are significantly reduced, thus making the whole construction simple and less expensive.

Conformément à la présente invention, il est prévu un dispositif pour ouvrir et fermer des panneaux d'écoutille du type repliable en accordéon, se composant d'au moins trois panneaux ayant chacun des portions de bord extrêmes articulées à celle de panneaux adjacents et destinés à être repliés ensemble en forme d'accordéon dans une station de rangement en ayant le premier panneau, qui est situé le plus près de la station de rangement en position fermée de l'écoutille, pourvu d'éléments formant bras articulés chacun à la station de rangement. Ce dispositif comporte un bras pivotant ayant une extrémité articulée à une table de support adjacente à la station de rangement et étant destiné à être déplacé par pivotement entre une position d'attente ou inactive horizontale située en dessous de goujons ou tenons horizontaux prévus sur au moins une surface latérale des panneaux de numéros impairs comptés à partir dudit premier panneau, et une position de basculement verticale dans laquelle le bras pivotant aura basculé chaque panneau de numéro impair en position verticale; des moyens pour actionner ledit bras pivotant, tels que des vérins hydrauliques, prévus sur le pont au voisinage de ladite table de support et ayant leur extrémité active reliée audit bras pivotant; et des moyens d'entraînement ou de commande, tels que chaîne sans fin, reliés au dernier panneau qui est le plus éloigné du premier panneau et destinés à mouvoir ledit dernier panneau en mouvement alternatif entre une position de fermeture d'écoutille et une position de rangement. Le dispositif conforme à l'invention est caractérisé en ce que le bras pivotant précité possède une structure télescopique de façon à permettre de faire varier sélectivement sa longueur entre son extrémité reliée à la table de support précitée et son extrémité opposéeoIn accordance with the present invention, a device is provided for opening and closing hatch covers of the folding accordion type, consisting of at least three panels each having end edge portions hinged to that of adjacent panels and intended for be folded together in the form of an accordion in a storage station with the first panel, which is located closest to the storage station in the closed position of the hatch, provided with elements forming articulated arms each at the storage station storage. This device comprises a pivoting arm having one end articulated to a support table adjacent to the storage station and being intended to be moved by pivoting between a horizontal waiting or inactive position located below horizontal studs or tenons provided on at least one lateral surface of the odd number panels counted from said first panel, and a vertical tilting position in which the pivoting arm will have tilted each odd number panel in a vertical position; means for actuating said pivoting arm, such as hydraulic cylinders, provided on the bridge in the vicinity of said support table and having their active end connected to said pivoting arm; and drive or control means, such as an endless chain, connected to the last panel which is farthest from the first panel and intended to move said last panel in reciprocating movement between a hatch closing position and a position of storage. The device according to the invention is characterized in that the aforementioned pivoting arm has a telescopic structure so as to allow its length to be varied selectively between its end connected to the aforementioned support table and its opposite end.

L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement à la lecture de la description explicative qui va suivre en se reportant aux dessins schématiques annexés donnés uniquement à titre d'exemple non limitatif illustrant un mode de réalisation spécifique actuellement préféré de l'invention, et dans lesquels :

  • La figure 1 est une vue de côté en élévation représentant le système de panneaux d'écoutille pourvu du dispositif conforme à la présente invention.
  • La figure 2 est une vue en perspective, à échelle agrandie, montrant une partie essentielle du dispositif conforme à la présente invention.
  • La figure 3 est une vue latérale en élévation illustrant la première phase de fonctionnement du dispositif selon la figure 1.
  • La figure 4 est une vue de côté en élévation montrant la position d'attente ou inactive pour la seconde phase de fonctionnement du dispositif de la figure 1.
  • La figure 5 est une vue de côté en élévation montrant la seconde phase de fonctionnement du dispositif de la figure 1.
  • La figure 6 est une vue latérale en élévation montrant la position d'attente ou inactive pour la troisième phase du fonctionnement du dispositif de la figure 1,et
  • La figure 7 est une vue de côté en élévation montrant la dernière phase du fonctionnement du dispositif de la figure 1.
The invention will be better understood and other objects, characteristics, details and advantages thereof will appear more clearly on reading the explanatory description which will follow, referring to the appended schematic drawings given solely by way of nonlimiting example illustrating a currently preferred specific embodiment of the invention, and in which:
  • Figure 1 is a side elevational view showing the hatch cover system provided with the device according to the present invention.
  • Figure 2 is a perspective view, on an enlarged scale, showing an essential part of the device according to the present invention.
  • FIG. 3 is a side elevation view illustrating the first phase of operation of the device according to FIG. 1.
  • FIG. 4 is a side elevation view showing the standby or inactive position for the second operating phase of the device in FIG. 1.
  • FIG. 5 is a side elevation view showing the second operating phase of the device in FIG. 1.
  • FIG. 6 is a side elevation view showing the standby or inactive position for the third phase of the operation of the device in FIG. 1, and
  • FIG. 7 is a side elevation view showing the last phase of the operation of the device in FIG. 1.

En se référant à la figure 1, il y est représenté une couverture d'écoutille 20 du type repliable en accordéon, se composant d'une pluralité de panneaux (par exemple six tels que représentés dans le dessin) 11,12, 13,14,15 et 16 posés sur l'hiloire d'écoutille 17 et le dispositif 10 conforme à la présente invention. Chacun des panneaux 11,12,13,14 et 15 est relié, à des panneaux adjacents, respectivement au moyen de joints d'articulation ou charnières 23a,23b,23c,23d et 23e. La station de rangement 18 est placée au voisinage de l'extrémité de gauche de l'hiloire d'écoutille 17. Dans la position de fermeture d'écoutille des panneaux, telle qu'indiquée sur la figure 1, le panneau 11 (appelé "premier panneau" ci-après), le plus proche de la station de rangement 18, est pourvu, à son extrémité de gauche, d'au moins un élément formant bras 21 qui est articulé par une extrémité de celui-ci à la station de rangement 18 au moyen d'un axe de pivot 22. Par conséquent, le premier panneau 11 peut pivoter dans le sens de rotation inverse des aiguilles d'une montre autour de l'axe de pivot 22 depuis la position horizontale telle que représentée sur la figure 1 jusqu'à la position verticale rangée. Chacun des panneaux 11,13 et 15 de numéro impair, compté vers la droite depuis le premier panneau 11, est pourvu respectivement d'un goujon ou tenon horizontal 4A,4B et 4C, dont chacun fait saillie vers l'extérieur à partir d'au moins un bord latéral de chaque panneau. Le dernier panneau, c'est-à-dire le sixième panneau 16, est pourvu d'un organe d'accouplement ou de liaison 5 qui pend d'au moins un bord latéral de ce panneau. Si cela est nécessaire, chacun des goujons ou tenons horizontaux 4A,4B,4C peut être respectivement pourvu d'un galet coaxial approprié. Le troisième panneau 13, le cinquième panneau 15 et le sixième panneau 16 sont munis respectivement chacun d'une roue 24A,24B et 24C qui toutes roulent sur et le long d'un rail de guidage (non représenté) prévu sur l'hiloire d'écoutille 17.Referring to Figure 1, there is shown a hatch cover 20 of the folding accordion type, consisting of a plurality of panels (for example six as shown in the drawing) 11,12, 13,14 , 15 and 16 placed on the hatch coaming 17 and the device 10 according to the present invention. Each of the panels 11, 12, 13, 14 and 15 is connected, to adjacent panels, respectively by means of articulation joints or hinges 23a, 23b, 23c, 23d and 23e. The storage station 18 is placed in the vicinity of the left end of the hatch coaming 17. In the hatch closing position of the panels, as indicated in FIG. 1, the panel 11 (called "first panel" below), closest to the storage station 18, is provided at its end on the left, at least one arm element 21 which is articulated by one end thereof to the storage station 18 by means of a pivot axis 22. Consequently, the first panel 11 can pivot in the direction clockwise rotation about the pivot axis 22 from the horizontal position as shown in Figure 1 to the vertical stored position. Each of the panels 11, 13 and 15 of odd number, counted to the right from the first panel 11, is respectively provided with a horizontal stud or pin 4A, 4B and 4C, each of which projects outwards from at least one side edge of each panel. The last panel, that is to say the sixth panel 16, is provided with a coupling or connecting member 5 which hangs from at least one lateral edge of this panel. If necessary, each of the horizontal studs or tenons 4A, 4B, 4C can be respectively provided with an appropriate coaxial roller. The third panel 13, the fifth panel 15 and the sixth panel 16 are each provided respectively with a wheel 24A, 24B and 24C which all roll on and along a guide rail (not shown) provided on the coaming d hatch 17.

Le dispositif 10 conforme à l'invention comprend un bras pivotant 1 ayant une extrémité articulée à une table de support 9 au moyen d'un axe horizontal 6, laquelle table de support 9 est placée sur le pont 19 au voisinage de la station de rangement 18.The device 10 according to the invention comprises a pivoting arm 1 having one end articulated to a support table 9 by means of a horizontal axis 6, which support table 9 is placed on the bridge 19 in the vicinity of the storage station 18.

Comme cela est indiqué sur la figure 2, le bras pivotant 1 consiste en un élément tubulaire 31 ayant son extrémité de gauche articulée à la table de support 9 au moyen de l'axe horizontal 6 et un élément coulissant 32 de structure télescopique inséré de façon coulissante dans l'élément tubulaire 31 depuis l'extrémité de droite de celui-ci. Un moyen pour actionner cette structure télescopique, tel qu'un vérin hydraulique 25 à cylindre et à piston, est prévu dans l'élément tubulaire 31 au voisinage de l'extrémité de gauche de celui-ci. Une extrémité active 25W du vérin hydraulique 25, et par exemple de sa tige de piston, est reliée à l'élément coulissant 32. Par conséquent, l'élément coulissant 32 glissera le long de l'élément tubulaire 31 sous l'action du vérin hydraulique 25 de façon que la distance, entre l'axe horizontal 6 et l'extrémité de droite de l'élément coulissant 32, soit réglée à volonté. Un vérin hydraulique 2, par exemple du type à cylindre et à piston, ayant une extrémité articulée à une chape 26 prévue sur le pont 19, est relié par son autre extrémité, c'est-à-dire par son extrémité active 2W, à l'élément tubulaire 31 du bras pivotant 1. En conséquence, le bras pivotant 1 se déplacera en mouvement alternatif sous l'action du vérin hydraulique 2 entre une position horizontale représentée sur les figures 1 et 2 et une position verticale représentée sur la figure 3. Plus particulièrement, la position verticale ou en hauteur de l'axe horizontal 6 est choisie de façon que le bras pivotant 1, dans la position horizontale, s'étendra depuis l'axe horizontal 6 en direction de l'hiloire d'écoutille 17 en étant à un niveau situé en dessous de celui des goujons ou tenons horizontaux 4A,4B et 4C. La position horizontale du bras pivotant 1 est une position d'attente ou inactive dans laquelle le bras pivotant 1 de structure télescopique est allongé ou en extension à un niveau situé en dessous des goujons ou tenons horizontaux 4A, 4B et 4C. La position verticale du bras pivotant 1, telle que représentée sur les figures 3, 5 et 7, est une position dans laquelle le bras pivotant 1 forcera chacun des panneaux de numéro impair 11,13 et 15 à pivoter depuis la position horizontale jusqu'à la position verticale de rangement. L'élément coulissant 32 du bras pivotant 1 à structure télescopique est suffisamment long pour s'étendre vers la droite respectivement au-delà des goujons horizontaux 4A,4B et 4C des panneaux de numéro impair 11,13 et 15 lorsque l'élément coulissant 32 est repoussé vers la droite, comme cela est indiqué sur la figure 2, par l'action du vérin hydraulique 25.As indicated in FIG. 2, the pivoting arm 1 consists of a tubular element 31 having its left end articulated to the support table 9 by means of the horizontal axis 6 and a sliding element 32 of telescopic structure inserted so sliding in the tubular element 31 from the right end thereof. A means for actuating this telescopic structure, such as a hydraulic cylinder 25 with cylinder and piston, is provided in the tubular element 31 in the vicinity of the left end thereof. An active end 25W of the hydraulic cylinder 25, and for example of its piston rod, is connected to the sliding element 32. Consequently, the sliding element 32 will slide along the tubular element 31 under the action of the cylinder hydraulic 25 so that the distance between the horizontal axis 6 and the right end of the sliding element 32 is adjusted as desired. A hydraulic cylinder 2, for example of the cylinder and piston type, having one end articulated to a yoke 26 provided on the bridge 19, is connected by its other end, that is to say by its active end 2W, to the tubular element 31 of the pivoting arm 1. Consequently, the pivoting arm 1 will move in reciprocating motion under the action of the hydraulic cylinder 2 between a horizontal position represented in FIGS. 1 and 2 and a vertical position represented in FIG. 3 More particularly, the vertical position or height of the horizontal axis 6 is chosen so that the pivoting arm 1, in the horizontal position, will extend from the horizontal axis 6 towards the hatch coaming 17 by being at a level below that of the horizontal studs or tenons 4A, 4B and 4C. The horizontal position of the swivel arm 1 is a standby or inactive position in which the swivel arm 1 of telescopic structure is extended or extended to a level located below the horizontal studs or tenons 4A, 4B and 4C. The vertical position of the pivoting arm 1, as shown in FIGS. 3, 5 and 7, is a position in which the pivoting arm 1 will force each of the panels of odd number 11, 13 and 15 to pivot from the horizontal position to the vertical storage position. The sliding element 32 of the pivoting arm 1 with telescopic structure is long enough to extend to the right respectively beyond the horizontal studs 4A, 4B and 4C of the panels of odd number 11, 13 and 15 when the sliding element 32 is pushed to the right, as indicated in FIG. 2, by the action of the hydraulic cylinder 25.

En se reportant de nouveau à la figure 1, sur au moins un côté de l'hiloire d'écoutille, une chaîne sans fin 3 passe sur une paire de roues à chaîne 7 et 8 situées respectivement aux deux extrémités de l'hiloire d'écoutille 17. L'une ou l'autre des deux roues à chaîne 7 et 8 est reliée à un moyen moteur de commande approprié (non représenté). Ce moyen de commande est du type réversible. Des moyens d'encliquetage et des moyens de verrouillage ou de blocage appropriés sont prévus entre l'arbre de sortie ou menant des moyens de commande et la roue à chaîne 7 ou 8 montée sur celui-ci. De même, des roues à chaîne de guidage et des roues à chaîne de rattrapage de jeu ou de mou nécessaires (non représentées) peuvent être prévues pour la chaîne sans fin. Le brin supérieur 3U de la chaîne sans fin 3 est situé en regard de la face inférieure de chacun des panneaux 11 à 16 et est relié à l'organe d'accouplement ou de liaison 5 lié de façon pendante au dernier panneau 16. Par conséquent, le sixième panneau 16 sera déplacé conjointement avec les autres panneaux le long'du rail de guidage sur l'hiloire d'écoutille 17 par le fonctionnement de la chaîne sans fin 3.Referring again to Figure 1, on at least one side of the hatch coaming, an endless chain 3 passes over a pair of chain wheels 7 and 8 located respectively at both ends of the coaming hatch 17. Either of the two chain wheels 7 and 8 is connected to a suitable drive motor means (not shown). This control means is of the reversible type. Latching means and appropriate locking or blocking means are provided between the output shaft or driving the control means and the chain wheel 7 or 8 mounted thereon. Likewise, guide chain wheels and necessary play or slack take-up chain wheels (not shown) can be provided for the endless chain. The upper strand 3U of the endless chain 3 is located opposite the underside of each of the panels 11 to 16 and is connected to the coupling or connecting member 5 linked pendantly to the last panel 16. Consequently , the sixth panel 16 will be moved together with the other panels along the guide rail on the hatch coaming 17 by the operation of the endless chain 3.

En cours de fonctionnement pour ouvrir les panneaux depuis la position de fermeture d'écoutille telle que représentée sur la figure 1, le bras pivotant 1 en position horizontale d'attente ou inactive aura l'élément coulissant 32 repoussé suffisamment vers la droite pour être placé en dessous du goujon horizontal 4A du premier panneau 11 Puis, quand le bras pivotant 1 est entraîné en rotation dans le sens inverse de rotation des aiguilles d'une montre (figure 1) autour de l'axe horizontal 6 par l'action du vérin hydraulique 2, le bras pivotant 1 forcera le premier panneau 11 à pivoter dans le sens inverse de rotation des aiguilles d'une montre autour de l'axe de pivot 22 en amenant ainsi le premier panneau 11 dans la position verticale de rangement en une seule opération. A ce moment, le second panneau 12 est replié contre le premier panneau 11 et les panneaux restants 13 à 16 sont tirés vers la station de rangement 18 comme cela est indiqué sur la figure 3. A ce moment, l'organe de liaison 5, lié de façon pendante au dernier panneau 16, tirera le brin supérieur 3U de la chaîne sans fin 3 vers la gauche. Le mouvement du brin supérieur 3U vers la gauche est exécuté sans difficulté puisqu'un mécanisme d'encliquetage à dents approprié ou un organe analogue de transmission ou d'accouplement unidirectionnel ou unidirectionnellement désaccouplable, est prévu sur la roue à chaîne menante 8.During operation to open the panels from the hatch closing position as shown in Figure 1, the pivoting arm 1 in the horizontal standby or inactive position will have the sliding element 32 pushed enough to the right to be placed below the horizontal stud 4A of the first panel 11 Then, when the pivoting arm 1 is rotated in the opposite direction of clockwise rotation (FIG. 1) around the horizontal axis 6 by the action of the jack hydraulic 2, the pivoting arm 1 will force the first panel 11 to pivot anticlockwise around the pivot axis 22 thereby bringing the first panel 11 into the vertical storage position in a single surgery. At this time, the second panel 12 is folded against the first panel 11 and the remaining panels 13 to 16 are pulled towards the storage station 18 as indicated in FIG. 3. At this time, the connecting member 5, linked hanging from the last panel 16, will pull the upper strand 3U of the endless chain 3 to the left. The movement of the upper strand 3U to the left is carried out without difficulty since an appropriate toothed locking mechanism or similar unidirectional or unidirectionally disengageable transmission or coupling member is provided on the driving chain wheel 8.

Après que les premier et second panneaux 11 et 12 aient été amenés et érigés dans la position de rangement, le vérin de commande 25, pour actionner la structure télescopique 32, est actionné de façon à rétracter l'élément coulissant 32 à l'intérieur de l'élément tubulaire 31 du bras pivotant 1 en réduisant ainsi la longueur du bras pivotant 1 comme cela est montré sur la figure 4. Ensuite, le bras pivotant 1 sera ramené à la position horizontale sans être gêné par le goujon horizontal 4B du troisième panneau 13 qui est situé à l'emplacement adjacent à la station de rangement comme cela est indiqué sur la figure 4. A ce moment, chaque panneau ne sera pas ramené à la position de fermeture d'écoutille, puisque le sixième panneau 16 est fermement maintenu dans la position représentée sur la figure 4 par la chaîne sans fin 3. Puis, le vérin de commande 25, pour actionner la structure télescopique, est actionné de nouveau de façon à accroître la longueur du bras pivotant 1 et à placer l'extrémité saillante 32 de celui-ci en dessous du goujon horizontal 4B. Après cela, le vérin hydraulique 2 est actionné pour faire pivoter le bras pivotant dans le sens inverse de rotation des aiguilles d'une montre autour de l'axe horizontal 6, en amenant ainsi le troisième panneau 13 dans la position verticale de rangement en un seul mouvement comme cela est indiqué sur la figure 5. A ce moment, le quatrième panneau 14 est replié contre le troisième panneau 13, les panneaux suivants 15 et 16 étant tirés jusqu'à la position attenante à la station de rangement 18.After the first and second panels 11 and 12 have been brought and erected in the storage position, the control cylinder 25, to actuate the telescopic structure 32, is actuated so as to retract the sliding element 32 inside the tubular element 31 of the pivoting arm 1 thereby reducing the length of the pivoting arm 1 as shown in FIG. 4. Then, the pivoting arm 1 will be brought back to the horizontal position without being hindered by the horizontal stud 4B of the third panel 13 which is located at the location adjacent to the storage station as shown in Figure 4. At this time, each panel will not be returned to the hatch closed position, since the sixth panel 16 is firmly held in the position shown in Figure 4 by the endless chain 3. Then, the control cylinder 25, to actuate the telescopic structure, is actuated again so as to increase the length of the pivoting arm 1 and to place the projecting end 32 thereof below the horizontal stud 4B. After that, the hydraulic cylinder 2 is actuated to rotate the pivoting arm counterclockwise around the horizontal axis 6, thereby bringing the third panel 13 into the vertical storage position in one single movement as indicated in FIG. 5. At this time, the fourth panel 14 is folded against the third panel 13, the following panels 15 and 16 being pulled to the position adjacent to the storage station 18.

Ensuite, après raccourcissement de la longueur du bras pivotant par l'action du vérin de commande 25 sur la structure télescopique comme cela est indiqué sur la figure 6, le bras pivotant 1 est retourné à la position horizontale. De nouveau, la longueur du bras pivotant 1 est augmentée ou rallongée par l'action du vérin de commande 25, de sorte que l'extrémité saillante 32 du bras pivotant 1 est placée en dessous du goujon horizontal 4C du cinquième panneau 15. Puis, le vérin hydraulique 2 est actionné de façon à faire tourner le bras pivotant 1 dans le sens inverse de rotation des aiguilles d'une montre ou vers le haut autour du goujon horizontal 6, en amenant ainsi le cinquième panneau 15 en un seul mouvement dans la position vertical de rangement, le sixième panneau 16 étant replié contre le cinquième panneau 15, en terminant ainsi le rangement de tous les panneaux comme cela est indiqué sur la figure 7. Comme cela a été mentionné précédemment, tous les six panneaux sont amenés dans la position de rangement en répétant trois fois l'opération d'érection telle qu'illustrée par la figure 3. La présente invention peut évidemment être appliquée à une couverture d'écoutille ayant un nombre impair de panneau.Then, after shortening the length of the pivoting arm by the action of the control cylinder 25 on the telescopic structure as indicated in FIG. 6, the pivoting arm 1 is returned to the horizontal position. Again, the length of the pivoting arm 1 is increased or lengthened by the action of the control cylinder 25, so that the projecting end 32 of the pivoting arm 1 is placed below the horizontal stud 4C of the fifth panel 15. Then, the hydraulic cylinder 2 is actuated so as to rotate the pivoting arm 1 anticlockwise or upward around the horizontal stud 6, thereby bringing the fifth panel 15 in one movement to the position vertical storage, the sixth panel 16 being folded against the fifth panel 15, thus completing the storage of all the panels as shown in Figure 7. As mentioned above, all six panels are brought into position storage by repeating three times the erection operation as illustrated in Figure 3. The present invention can obviously be applied to a hatch cover having an odd number of panels.

Pour amener tous les panneaux dans la position de fermeture d'écoutille depuis la position de rangement, tous les panneaux 11 à 16 sont tirés le long de l'hiloire d'écoutille 17 dans l'ordre inverse de succession des opérations par rapport à ce qui a été décrit ci-dessus, par l'action de la chaîne sans fin 3. Cela signifie que les sixième et cinquième panneaux 16 et 15 sont d'abord tirés depuis la station de rangement jusque sur l'hiloire d'écoutille 17 par l'action de la chaîne sans fin 3 comme cela est montré sur la figure 7. Pendant cette opération de halage, le bras pivotant 1 tournera lentement dans le sens de rotation des aiguilles d'une montre autour de l'axe 6 en ayant sa surface supérieure en contact avec le goujon horizontal 4C du cinquième panneau 15, de façon à empêcher ainsi une chute ou descente violente des deux panneaux 15 et 160To bring all the panels into the hatch closing position from the storage position, all the panels 11 to 16 are pulled along the hatch coaming 17 in the reverse order of the sequence of operations with respect to this. which has been described above, by the action of the endless chain 3. This means that the sixth and fifth panels 16 and 15 are first pulled from the storage station to the hatch coaming 17 by the action of the endless chain 3 as shown in FIG. 7. During this hauling operation, the pivoting arm 1 will rotate slowly in the direction of rotation of the needles of a watch around the axis 6 having its upper surface in contact with the horizontal stud 4C of the fifth panel 15, so as to prevent a violent fall or descent of the two panels 15 and 160

D'une manière similaire, le bras pivotant 1 est en contact avec le goujon horizontal 4B pendant le mouvement de traction des quatrième et troisième panneau 14 et 13 et il est en contact avec le goujon horizontal 4A durant le mouvement de traction des second et premier panneaux 12 et 11 et il pivotera lentement tout en supportant le poids des panneaux, de sorte que les panneaux sont successivement tirés en ayant leur vitesse de chute ou de descente convenablement ajustée.Similarly, the pivoting arm 1 is in contact with the horizontal stud 4B during the pulling movement of the fourth and third panel 14 and 13 and it is in contact with the horizontal stud 4A during the pulling movement of the second and first panels 12 and 11 and it will pivot slowly while supporting the weight of the panels, so that the panels are successively pulled at their speed properly adjusted fall or descent.

Comme cela a été décrit ci-dessus, tout le dispositif devient extrêmement simplifié et comprend seulement un groupe d'organes composé du bras pivotant 1 et de la chaîne sans fin 3 en tant qu'élément composant du dispositif de chaque côté de l'écoutille, toutes autres parties ou pièces étant supprimées. Par conséquent, les espèces et nombre de parties ou pièces sont sensiblement réduits, de sorte que non seulement le coût de construction est rendu minimal mais le fonctionnement et l'entretien sont également facilités en réduisant ainsi sensiblement le temps et la main- d'oeuvre impliqués par le fonctionnement. En outre, conformément à la présente invention, chaque panneau est amené de sa position placée au-dessus de l'hiloire d'écoutille jusqu'à la position de rangement en un seul mouvement sans qu'aucun panneau ne soit maintenu dans une position intermédiaire quelconque et il est donc possible d'éliminer des positions instables, à roulement brutal ou violent et une fausse manoeuvre des panneaux. Les avantages de la présente invention résident également dans le fait qu'il n'est pas nécessaire d'arrêter ou de contrôler ou régler le fonctionnement de chaque panneau en raison de la présence des goujons horizontaux 4A,4B,4C en retournant le bras pivotant 1 dans la position horizontale et en ce que le circuit hydraulique d'huile est simplifié pour alimenter le vérin hydraulique 2 et le vérin de commande 25 pour actionner la structure télescopique ainsi que dans le fait que le système entier fonctionne d'une façon douce et sûre.As described above, the whole device becomes extremely simplified and only includes a group of members made up of the swivel arm 1 and the endless chain 3 as a component of the device on each side of the hatch , all other parts or pieces being deleted. As a result, the cash and number of parts or parts are significantly reduced, so that not only is the cost of construction minimized but operation and maintenance are also facilitated thereby significantly reducing the time and labor involved in the operation. Furthermore, in accordance with the present invention, each panel is brought from its position placed above the hatch coaming to the storage position in a single movement without any panel being held in an intermediate position. any and it is therefore possible to eliminate unstable positions, sudden or violent rolling and a false operation of the panels. The advantages of the present invention also lie in the fact that it is not necessary to stop or control or regulate the operation of each panel due to the presence of the horizontal studs 4A, 4B, 4C by turning the pivoting arm 1 in the horizontal position and in that the hydraulic oil circuit is simplified to supply the hydraulic cylinder 2 and the control cylinder 25 for operate the telescopic structure as well as the fact that the entire system works smoothly and safely.

Claims (3)

1.- Dispositif pour ouvrir et fermer une couverture d'écoutille du type repliable en accordéon, se composant d'au moins trois panneaux ayant chacun une portion de bord extrême articulée respectivement à celles de panneaux adjacents et destinés à être repliés ensemble en forme d'accordéon dans une station de rangement, le premier panneau, qui est situé le plus près de ladite station de rangement en position fermée de l'écoutille, étant pourvu d'éléments formant bras articulés chacun à la station de rangement, ledit dispositif comprenant un bras pivotant ayant une extrémité articulée à une table de support voisine de la station de rangement et destiné à être déplacé par pivotement alternativement entre une position horizontale d'attente ou inactive en dessous de goujons horizontaux prévus sur au moins une face latérale des panneaux de numéros impairs comptés à partir dudit premier panneau et une position verticale de basculement dans laquelle le bras pivotant aura basculé chaque panneau de numéro impair en position verticale, des moyens pour actionner ledit bras pivotant, tels que des vérins hydrauliques, prévus sur le pont au voisinage de ladite table de support et ayant leur extrémité active reliée audit bras pivotant, et des moyens de commande, tels que chaine sans fin, reliés au dernier panneau qui est le plus éloigné dudit premier panneau et forçant ledit dernier panneau à se mouvoir alternativement entre une position de fermeture d'écoutille et une position de rangement, ledit dispositif étant caractérisé en ce que ledit bras pivotant (1) possède une structure télescopique, de façon à permettre une variation sélective de sa longueur entre son extrémité (6) reliée à ladite table de support (9) et son extrémité opposée (32).1.- Device for opening and closing a hatch cover of the folding accordion type, consisting of at least three panels each having an extreme edge portion articulated respectively to those of adjacent panels and intended to be folded together in a d shape accordion in a storage station, the first panel, which is located closest to said storage station in the closed position of the hatch, being provided with arms forming elements each articulated at the storage station, said device comprising a swivel arm having one end articulated to a support table adjacent to the storage station and intended to be moved by pivoting alternately between a horizontal standby or inactive position below horizontal studs provided on at least one lateral face of the number panels odd counted from said first panel and a vertical tilting position in which the pivoting arm will have tilted each panel of odd number in vertical position, means for actuating said pivoting arm, such as hydraulic jacks, provided on the bridge in the vicinity of said support table and having their active end connected to said pivoting arm, and control means, such as endless chain, connected to the last panel which is furthest from said first panel and forcing said last panel to move alternately between a hatch closing position and a storage position, said device being characterized in that said pivoting arm ( 1) has a telescopic structure, so as to allow a selective variation of its length between its end (6) connected to said support table (9) and its opposite end (32). 2.- Dispositif selon la revendication 1, caractérisé en ce que chaque bras pivotant précité (1) est, d'une part, extensible jusqu'à une longueur lui permettant d'entrer en contact avec un goujon (4) d'un panneau quelconque (11-16) qui est proche de la station de rangement précitée (18) et, d'autre part, rétractable jusqu'à une longueur si courte qu'il ne soit plus en contact avec un tel goujon.2.- Device according to claim 1, characterized in that each aforementioned pivoting arm (1) is, on the one hand, extendable to a length allowing it to come into contact with a stud (4) of a panel any one (11-16) which is close to the aforementioned storage station (18) and, on the other hand, retractable to a length so short that it is no longer in contact with such a stud. 3.- Dispositif selon la revendication 2, caractérisé en ce que la chaine sans fin précitée (3) s'étend le long de l'hiloire d'écoutille (17) et est reliée à des moyens d'entraînement réversibles par l'intermédiaire de moyens d'accouplement unidirectionnels automatiquement désaccouplables.3.- Device according to claim 2, characterized in that the aforementioned endless chain (3) extends along the hatch coaming (17) and is connected to reversible drive means via unidirectional coupling means which are automatically uncouplable.
EP81401393A 1980-09-12 1981-09-07 System for opening and closing hatch covers Expired EP0048199B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP55125911A JPS5751593A (en) 1980-09-12 1980-09-12 Opening and closing apparatus for hatch lid
JP125911/80 1980-09-12

Publications (2)

Publication Number Publication Date
EP0048199A1 true EP0048199A1 (en) 1982-03-24
EP0048199B1 EP0048199B1 (en) 1985-04-10

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ID=14921959

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EP81401393A Expired EP0048199B1 (en) 1980-09-12 1981-09-07 System for opening and closing hatch covers

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US (1) US4357982A (en)
EP (1) EP0048199B1 (en)
JP (1) JPS5751593A (en)
DE (1) DE3169842D1 (en)
ES (1) ES505431A0 (en)
NO (1) NO813101L (en)
YU (1) YU219381A (en)

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FI110178B (en) * 1998-03-09 2002-12-13 Macgregor Fin Oy A cargo hatch swing device that covers the cargo hold of the cargo ship
CN100363230C (en) * 2003-11-15 2008-01-23 浙江现代船舶设计研究有限公司 Light self folding hatch cover
WO2010017399A2 (en) 2008-08-06 2010-02-11 SafePro, L.P. Safety hatch system and egress method
US8353855B2 (en) 2008-09-10 2013-01-15 Ingrao Jason V Therapeutic system
WO2010151892A1 (en) 2009-06-26 2010-12-29 SafePro, L.P. Integrated safety rail protection system
CN103693167B (en) * 2013-12-26 2016-10-05 上海德瑞斯华海船用设备有限公司 The headstock gear of hatch board
CN104880329A (en) * 2014-02-27 2015-09-02 中国矿业大学 Automatic telescoping cover plate of horizontal excavation support testing stand
CN113277005A (en) * 2021-04-26 2021-08-20 中船澄西船舶修造有限公司 Folding side-moving combined hatch cover

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FR1429896A (en) * 1965-04-12 1966-02-25 Von Tell Trading Co Ab Control device for closing with folding panels of cargo holds or the like
FR2032561A5 (en) * 1969-04-30 1970-11-27 Rosendahl Arvid
DE2421902A1 (en) * 1973-05-08 1974-11-28 Kvaerner Brug As DEVICE FOR MOVING AND FOLDING HATCH COVERS DIVIDED IN SECTIONS, INTERMEDIATE DECK AND THE LIKE
DE2712882A1 (en) * 1977-03-24 1978-09-28 Thomas Dipl Ing Dip Hinckeldey Folding panel manhole cover opening system - has pairs of wheeled panels folded in sequence by one pair of levers
FR2410596A2 (en) * 1977-11-30 1979-06-29 Mac Gregor International Sa Multi-leaved hatch cover operating appts. - has hydraulic jack to fold each cover pair in stowed position (NL 13.6.78)

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US3107722A (en) * 1960-10-04 1963-10-22 Von Tell Trading Co Ab Hatch covers having hydraulic means for moving the sections
DE1456289A1 (en) * 1965-04-05 1968-12-05 Von Tell Trading Co Ab Actuating device on folding covers for cargo spaces
NO124822B (en) * 1965-05-07 1972-06-12 Kvaerner Brug As
NL6703476A (en) * 1967-03-03 1968-09-04
US3811396A (en) * 1973-04-18 1974-05-21 Kvaerner Brug As Folding cover system for hatches
JPS5225395A (en) * 1975-08-20 1977-02-25 Ishikawajima Harima Heavy Ind Co Ltd Hatch cover
IN149160B (en) * 1976-12-09 1981-09-26 Mac Gregor International Sa
JPS5438092A (en) * 1977-08-29 1979-03-22 Kiyokutou Matsuku Guregoo Kk Opening and closing device for hatch cover

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Publication number Priority date Publication date Assignee Title
FR1429896A (en) * 1965-04-12 1966-02-25 Von Tell Trading Co Ab Control device for closing with folding panels of cargo holds or the like
FR2032561A5 (en) * 1969-04-30 1970-11-27 Rosendahl Arvid
DE2421902A1 (en) * 1973-05-08 1974-11-28 Kvaerner Brug As DEVICE FOR MOVING AND FOLDING HATCH COVERS DIVIDED IN SECTIONS, INTERMEDIATE DECK AND THE LIKE
DE2712882A1 (en) * 1977-03-24 1978-09-28 Thomas Dipl Ing Dip Hinckeldey Folding panel manhole cover opening system - has pairs of wheeled panels folded in sequence by one pair of levers
FR2410596A2 (en) * 1977-11-30 1979-06-29 Mac Gregor International Sa Multi-leaved hatch cover operating appts. - has hydraulic jack to fold each cover pair in stowed position (NL 13.6.78)

Also Published As

Publication number Publication date
NO813101L (en) 1982-03-15
JPS5751593A (en) 1982-03-26
ES8300605A1 (en) 1982-11-01
EP0048199B1 (en) 1985-04-10
ES505431A0 (en) 1982-11-01
YU219381A (en) 1984-06-30
DE3169842D1 (en) 1985-05-15
US4357982A (en) 1982-11-09

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