EP2014857B1 - Secured hatch - Google Patents
Secured hatch Download PDFInfo
- Publication number
- EP2014857B1 EP2014857B1 EP08004329A EP08004329A EP2014857B1 EP 2014857 B1 EP2014857 B1 EP 2014857B1 EP 08004329 A EP08004329 A EP 08004329A EP 08004329 A EP08004329 A EP 08004329A EP 2014857 B1 EP2014857 B1 EP 2014857B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- shock
- axis
- chassis
- damping
- 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.)
- Active
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 6
- 239000006262 metallic foam Substances 0.000 claims abstract description 3
- 239000000806 elastomer Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 abstract description 31
- 239000006263 elastomeric foam Substances 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 23
- 239000000463 material Substances 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000004417 patella Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
- E05F5/022—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops specially adapted for vehicles, e.g. for hoods or trunks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/22—Manhole covers, e.g. on tanks; Doors on armoured vehicles or structures
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D11/00—Additional features or accessories of hinges
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/21—Brakes
- E05Y2201/212—Buffers
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/262—Type of motion, e.g. braking
- E05Y2201/264—Type of motion, e.g. braking linear
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/504—Application of doors, windows, wings or fittings thereof for vehicles for armoured vehicles
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/546—Tailboards, tailgates or sideboards opening upwards
Definitions
- the technical sector of the present invention is that of doors and hinges and more particularly that of devices for damping a shock exerted on the door.
- the hardware may come knocking the door during its movement.
- the resistance of the door then ensures the safety of the operator. To date there is no device provided to withstand such shocks without the risk of breaking the door.
- the patent DE-19912557 describes a rod for adjusting the opening angle of a hatch but this rod does not include any damping means.
- the FR-2578017 discloses a gas spring for opening a vehicle tailgate. It also describes a rod with damping means.
- the patent GB-511868 describes a device for adjusting the opening angle of a car windshield.
- the joints are not elastic joints but patches in which a spring means allows apply a portion of the patella against his seat.
- the present invention addresses these various problems by providing a door capable of withstanding a shock on the door, whatever its direction, ensuring sufficient energy absorption to ensure the holding of the door and thus the protection of the operator .
- the subject of the invention is a secured hatch comprising a door that can be opened relative to the frame by rotation about an axis, said axis passing through at least one bearing integral with the frame and at least one hinge integral with the door, comprising at least one damping link. interposed between the frame and the door in a direction substantially perpendicular to the door, said link comprising a first end secured to the frame and a second end secured to the door, characterized in that the damping link comprises two sliding parts relative to one another; to the other and compressing between them a damping pad as they approach one another, the two sliding parts of the damping link being fixed together with a pin calibrated to break with an effort determined.
- the damping link comprises at each of its ends an elastic hinge.
- the damping pad consists of elastomer or metal foam.
- the invention also relates to the application of a secured hatch to the protection of an operator in an armored vehicle against shocks that may be caused by the movements in site or in the field of a turret or a weapon.
- An advantage of the hatch according to the invention is to provide protection for the operator in the event of failure of the control system of the mobile equipment.
- Another advantage of the hatch is to allow to withstand a force coming from different directions.
- Another advantage of the hatch is to dissipate the energy of the shock to limit the risk of rupture and / or injury.
- Another advantage of the hatch lies, when using intermediate bearings, in the division of the energy of the shock on a larger number of damping cushions.
- the frame 1 of an equipment provided with a hatch is partially shown the frame 1 of an equipment provided with a hatch according to one embodiment of the invention.
- the frame has an opening la to allow an operator to pass the head or bust for observation.
- the chassis 1 is the bodywork of a vehicle, for example a military vehicle, and said opening is a manhole allowing the driver or the head of the vehicle to leave the head to drive with direct vision or to perceive his environment live. This is generally preferable to seeing through viewfinders or episcopes.
- the opening is closed by a door 2 here shown in three distinct positions 2a, 2b, 2c and allows by its movement to close or release said opening 1a.
- position 2a the door is closed and protects the opening.
- position 2b the door is semi-open and partially releases the opening.
- position 2c the door is fully open and releases the opening 1a more completely.
- the operator can take out the head and / or the bust through the opening la.
- This articulation comprises an axis 3, at least one bearing 4, 5 and at least one hinge 8, 9 or 10.
- the axis 3 is held in position by bearings 4, 5, 6, 7 integral with the frame 1.
- the door 2 is fixed on the axis 3 by means of the hinges 8, 9, 10 while allowing its rotation around said axis 3.
- the figure 2 also illustrates the arrangement of damping cushions 11, 12, 13, 14, 15 or 16 of the movement of the door. For better efficiency damping, is interposed a cushion cushion along the axis 3 between each bearing 4, 5, 6 or 7 secured to the frame and a hinge 8, 9 or 10 integral with the door 2.
- the damping cushions are intended primarily to support a shock is exerted in the plane of the door 2. Such a shock is caused by a moving object from striking the door 2 in a direction D1 or D2.
- such a shock may be caused by the rotation of a turret bearing to meet the door 2 remained in the open position.
- the door 2 will tend to move to the right in the plane of the figure.
- This will be cushioned by the compression of the cushion 12 between the hinge 8 and the bearing 6, the cushion 14 between the hinge 9 and the bearing 7, the cushion 16 between the hinge 10 and the bearing 5.
- the cushions 11, 13 and 15 are not solicited in this case.
- shock in the direction D2 it is the cushions 11, 13 and 15 which are compressed between, respectively, the hinge 8 and the bearing 4, the hinge 9 and the bearing 6, the hinge 10 and the bearing 7.
- the figure 3 partially illustrates the articulation shown in section along the axis 3.
- the axis 3 passes through an end bearing 4 and a hinge 8. So that the rotational movement allowing the opening of the door 2 is possible , the hinge 8 has a game allowing it to rotate about the axis 3. This game can be provided at the level of the bearing 4. For the damping function is assured, it is necessary that the hinge 8 can translate along the axis 3.
- the axis 3 is preferably stopped in translation relative to the bearing 4, for example by a shoulder 3a.
- An intermediate bearing, such as the bearing 6, does not provide any function in the rotation of the door 2, but only a stop function in translation of the adjacent damping cushions 12, 13 and advantageously has a clearance of 6. much larger in relation to axis 3.
- the figure 3 still shows an alternative embodiment using damping cushions 11, 12, 13 having a particular dome shape.
- damping cushions 11, 12, 13 having a particular dome shape.
- This particular arrangement makes it possible to take advantage of the advantageous damping properties of the material constituting these cushions when this material is stressed in shear and no longer in compression, as is the case with the embodiment according to the invention. figure 2 .
- the device according to the invention makes it possible to damp an impact coming from a direction transverse to the plane of the door, such as, for example, the direction D 0 represented on FIG. figure 1 .
- This case corresponds for example to a fallout of the tube of the weapon (barrel) on the door 2 disposed in the open position 2b or 2c.
- the device previously described at the joint is completed by one (or more) link 17 according to the invention.
- the figure 1 indicates the positioning of the rod 17 relative to the chassis 1 and the door 2.
- the link has a substantially flat shape and comprises fastening means at each of its ends 18, 19 to the frame and the door.
- the first end 18 is integral with the frame 1 and the second end 19 is integral with the door 2.
- the rod 17 is advantageously placed at the lateral ends of the door 2 in order to free up the passage for the operator.
- the attachment points of the rod are chosen so as to place said rod in a direction substantially perpendicular to the plane of the door 2, in order to oppose its closing movement or, if appropriate, opening.
- the end 19 of the rod 17 is advantageously fixed to the door 2.
- a means (not shown) ensures the positioning of the end 19 of the rod 17 relative to the frame 1.
- each end 18, 19 has a tube 28, 29 complementary to an axis 30 secured to the frame 1.
- a similar axis 31 is provided at the end 19, integral with the door 2.
- the connection between the tube 28 or 29 and its attachment axis 30 or 31 is such that rotation is possible.
- the tube 28 or 29 is advantageously connected to the end 18 or 19 by an elastic articulation 20 or 21.
- This elastic articulation is made for example by means of an elastomer bonded between the outer diameter of the tube 28 or 29 and the internal diameter of the end 18 or 19.
- the main function of this elastic hinge is to allow the rod 17, by deformation of the elastomer, to support a possible displacement of the door 2 during an impact in the plane of the door (Direction D1 or D2).
- the main function of the rod 17 is to damp a shock in a direction transverse to the plane of the door 2, for example D0. Such a shock tends to bring the two ends 18 and 19 closer to one another.
- the rod 17 must dampen the shock and dissipate the maximum energy of this shock.
- the link 17 consists of two parts 22 and 23 of complementary shapes in order to slide telescopically relative to each other.
- a first means for damping the shock along the axis of the link 17 is constituted by a damping pad 24 interposed between the two parts 22 and 23 so as to be compressed between these two parts 22 and 23 as they come together.
- a second means of damping the impact on the rod 17 is constituted by a pin 25 calibrated to break beyond a given breaking force. This pin passes through the two parts 22 and 23 and secures them.
- a shock on the hatch in any direction is divided into two components: a first component in the plane of the door 2 which is damped by the device comprising the damping cushions 11, 12, 13, 14 , 15, 16 present at the joint between the door 2 and the frame 1, a second component substantially perpendicular to the plane of the door 2 which is damped by the rod 17 along its axis.
- All the elements involved in damping, damping cushions 11, 12, 13, 14, 15, 16, elastic joints 20, 21, buffer 24, cotter pin 25 are deformable. These deformations can be elastic and / or plastic. In order to dissipate energy, plastic deformation is preferable. Another advantage of components to Plastic deformation is to provide, by measuring the amplitude of the remanent deformation, a measure of the amplitude of the shock suffered.
- the materials used can be of different types. For example, elastomers, but also metal materials used for their elastic properties, in the form of springs or spring washers. These metals can be massive or shaped rods or spiral cables or any other equivalent form.
- Another possibility, offering great plasticity characteristics is the use of foam metals. This foam can be obtained by compaction of filings, wire, chips or wire mesh. It is also possible to envisage the use of structured sheet metals, for example of the honeycomb type.
- the device in the preferential use of protection of an operator passing the head in a hatch located near a mobile / rotating equipment, the device is a backup in case of failure of the control system said material. Its use remains exceptional and maintenance after use is acceptable. This therefore allows the use of consumables: pin 24 and shock absorbers plastic deformation, which are intended to be replaced after use.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vibration Dampers (AREA)
- Materials For Medical Uses (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
Description
Le secteur technique de la présente invention est celui des portes et charnières et plus particulièrement celui des dispositifs permettant d'amortir un choc exercé sur la porte.The technical sector of the present invention is that of doors and hinges and more particularly that of devices for damping a shock exerted on the door.
Il est connu de pratiquer une ouverture dans le châssis d'un équipement afin de permettre à un opérateur de passer la tête ou le buste aux fins d'observation de l'environnement extérieur. Lorsque cette ouverture n'est pas utilisée, elle peut être obstruée par une porte. Lors de son utilisation, la porte est ouverte et forme une proéminence à l'extérieur du châssis. L'opérateur passant la tête et/ou le buste vient lui aussi dépasser à l'extérieur du châssis. Il est fréquent qu'un-matériel mobile, monté sur ledit équipement, vienne au cours de son mouvement, occuper l'espace dans lequel se trouve déjà la porte ouverte ou bien l'opérateur en position d'observation. A titre illustratif, on cite par exemple une tourelle ou un système d'arme qui lors de leur rotation risque de venir heurter la porte ou l'opérateur. Afin d'éviter un choc entre ledit matériel mobile et la porte ou l'opérateur, il est connu d'intégrer des sécurités dans le système de pilotage dudit matériel, interdisant son mouvement dans l'espace occupé par la porte lorsque celle-ci est ouverte.It is known to practice an opening in the chassis of an equipment to allow an operator to pass the head or the bust for the purpose of observation of the external environment. When this opening is not used, it may be obstructed by a door. When in use, the door is open and forms a prominence outside the frame. The operator passing the head and / or the bust also protrudes outside the chassis. It is common that mobile equipment mounted on said equipment, comes during its movement, occupy the space in which is already the open door or the operator in the observation position. By way of illustration, mention may be made, for example, of a turret or a weapon system which during their rotation risks striking the door or the operator. In order to avoid a collision between said mobile equipment and the door or the operator, it is known to integrate safety devices in the control system of said equipment, prohibiting its movement in the space occupied by the door when it is opened.
Dans l'hypothèse d'une absence ou d'une défaillance desdites sécurités, le matériel peut venir heurter la porte lors de son mouvement. La résistance de la porte assure alors la sécurité de l'opérateur. Il n'existe pas, à ce jour, de dispositif prévu pour supporter de tels chocs sans risquer la rupture de la porteIn the event of an absence or a failure of said securities, the hardware may come knocking the door during its movement. The resistance of the door then ensures the safety of the operator. To date there is no device provided to withstand such shocks without the risk of breaking the door.
Le
Le
Le brevet
Aucun de ces brevets ne décrit une biellette constituée de deux parties coulissantes.None of these patents discloses a rod consisting of two sliding parts.
La présente invention répond à ces différents problèmes en proposant une trappe capable de supporter un choc sur la porte, quelle que soit sa direction, en assurant une absorption d'énergie suffisante pour garantir la tenue de la porte et ainsi la protection de l'opérateur.The present invention addresses these various problems by providing a door capable of withstanding a shock on the door, whatever its direction, ensuring sufficient energy absorption to ensure the holding of the door and thus the protection of the operator .
L'invention a pour objet une trappe sécurisée comprenant une porte ouvrable relativement au châssis par rotation autour d'un axe, ledit axe traversant au moins un palier solidaire du châssis et au moins une charnière solidaire de la porte, comprenant au moins une biellette amortissante intercalée entre le châssis et la porte selon une direction sensiblement perpendiculaire à la porte, ladite biellette comprenant une première extrémité solidaire du châssis et une seconde extrémité solidaire de la porte, caractérisée en ce que la biellette amortissante comprend deux parties coulissantes l'une par rapport à l'autre et comprimant entre elles un tampon amortisseur lorsqu'elles se rapprochent l'une de l'autre, les deux parties coulissantes de la biellette amortissante étant fixées ensemble à l'aide d'une goupille calibrée pour se rompre à un effort déterminé.The subject of the invention is a secured hatch comprising a door that can be opened relative to the frame by rotation about an axis, said axis passing through at least one bearing integral with the frame and at least one hinge integral with the door, comprising at least one damping link. interposed between the frame and the door in a direction substantially perpendicular to the door, said link comprising a first end secured to the frame and a second end secured to the door, characterized in that the damping link comprises two sliding parts relative to one another; to the other and compressing between them a damping pad as they approach one another, the two sliding parts of the damping link being fixed together with a pin calibrated to break with an effort determined.
Selon une caractéristique de l'invention, la biellette amortissante comprend à chacune de ses extrémités une articulation élastique.According to a feature of the invention, the damping link comprises at each of its ends an elastic hinge.
Selon une autre caractéristique de l'invention, le tampon amortisseur est constitué d'élastomère ou de mousse métallique.According to another characteristic of the invention, the damping pad consists of elastomer or metal foam.
L'invention concerne également l'application d'une trappe sécurisée à la protection d'un opérateur dans un véhicule blindé contre des chocs pouvant être occasionnés par les mouvements en site ou en gisement d'une tourelle ou d'une arme.The invention also relates to the application of a secured hatch to the protection of an operator in an armored vehicle against shocks that may be caused by the movements in site or in the field of a turret or a weapon.
Un avantage de la trappe selon l'invention est de fournir une protection de l'opérateur en cas de défaillance du système de pilotage du matériel mobile.An advantage of the hatch according to the invention is to provide protection for the operator in the event of failure of the control system of the mobile equipment.
Un autre avantage de la trappe est de permettre de supporter un effort provenant de différentes directions.Another advantage of the hatch is to allow to withstand a force coming from different directions.
Un autre avantage de la trappe est de dissiper l'énergie du choc afin de limiter les risques de rupture et/ou de blessure.Another advantage of the hatch is to dissipate the energy of the shock to limit the risk of rupture and / or injury.
Un autre avantage de la trappe réside, lorsque l'on utilise des paliers intermédiaires, dans la division de l'énergie du choc sur un nombre plus important de coussins amortisseurs.Another advantage of the hatch lies, when using intermediate bearings, in the division of the energy of the shock on a larger number of damping cushions.
D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement de la description détaillée donnée ci-après à titre indicatif en relation avec des dessins sur lesquels :
- la
figure 1 présente une vue latérale de la trappe, - la
figure 2 présente une vue de dessus de la trappe, - la
figure 3 présente une vue en coupe selon l'axe de rotation de l'articulation, - la
figure 4 présente une vue en perspective de la biellette, et - la
figure 5 présente une vue en coupe de la biellette selon son axe.
- the
figure 1 has a side view of the hatch, - the
figure 2 presents a view from above of the hatch, - the
figure 3 has a sectional view along the axis of rotation of the joint, - the
figure 4 has a perspective view of the rod, and - the
figure 5 has a sectional view of the rod along its axis.
Sur la
L'ouverture la est fermée par une porte 2 ici représentée dans trois positions distinctes 2a, 2b, 2c et elle permet par son mouvement de fermer ou de libérer ladite ouverture 1a. Dans la position 2a, la porte est fermée et protège l'ouverture la. Dans la position 2b, la porte est semi-ouverte et libère partiellement l'ouverture la. Dans la position 2c, la porte est entièrement ouverte et libère plus complètement l'ouverture 1a. Dans les deux positions 2b et 2c, l'opérateur peut sortir la tête et/ou le buste au travers de l'ouverture la. Le mouvement de la porte 2 par rapport au châssis 1 est rendu possible par la présence d'une articulation. Cette articulation comprend un axe 3, au moins un palier 4, 5 et au moins une charnière 8, 9 ou 10.The opening is closed by a door 2 here shown in three
Comme illustré plus en détail sur la
La
On a décrit la partie du dispositif chargé d'amortir un choc provenant d'une direction située dans le plan de la porte 2, soit d'une direction D1 ou D2, telles que représentées sur la
Sur ce même principe, il est possible de multiplier les biellettes 17, afin de répartir le choc et d'augmenter la capacité amortissante, ceci conduisant à améliorer la résistance de la trappe à un choc.On the same principle, it is possible to multiply the
L'extrémité 19 de la biellette 17 est avantageusement fixée à la porte 2. Afin de permettre plusieurs positions d'ouverture de la porte 2, tout en conservant une longueur constante à la biellette 17, un moyen (non représenté) assure le positionnement de l'extrémité 19 de la biellette 17 relativement au châssis 1.The
Les
On voit de ce qui précède qu'un choc sur la trappe selon une direction quelconque se répartit selon deux composantes : une première composante dans le plan de la porte 2 qui est amortie par le dispositif comprenant les coussins amortisseurs 11, 12, 13, 14, 15, 16 présents au niveau de l'articulation entre la porte 2 et le châssis 1, une seconde composante sensiblement perpendiculaire au plan de la porte 2 qui est amortie par la biellette 17 le long de son axe.It can be seen from the above that a shock on the hatch in any direction is divided into two components: a first component in the plane of the door 2 which is damped by the device comprising the damping cushions 11, 12, 13, 14 , 15, 16 present at the joint between the door 2 and the frame 1, a second component substantially perpendicular to the plane of the door 2 which is damped by the
Tous les éléments participant à l'amortissement, coussins amortisseurs 11, 12, 13, 14, 15, 16, articulations élastiques 20, 21, tampon amortisseur 24, goupille calibrée 25 sont déformables. Ces déformations peuvent être élastiques et/ou plastiques. Afin de dissiper de l'énergie, une déformation plastique est préférable. Un autre avantage de composants à déformation plastique est de fournir, par mesure de l'amplitude de la déformation rémanente, une mesure de l'amplitude du choc subi. Les matériaux utilisés peuvent être de différents types. On cite, par exemple, les élastomères, mais aussi les matériaux métalliques utilisés pour leurs propriétés élastiques, sous forme de ressorts ou de rondelles élastiques. Ces métaux peuvent être massifs ou mis en forme de boudins ou encore de câbles en spirale ou tout autre forme équivalente. Une autre possibilité, offrant de grande caractéristiques de plasticité est l'utilisation de métaux en mousse. Cette mousse peut être obtenue par compactage de limaille, de fil, de copeaux ou de grillage métallique. On peut aussi envisager l'utilisation de métaux en feuilles structurés par exemple de type nid d'abeille.All the elements involved in damping, damping cushions 11, 12, 13, 14, 15, 16,
Il est important de noter, que dans l'utilisation préférentielle de protection d'un opérateur passant la tête dans une trappe située à proximité d'un matériel mobile/tournant, le dispositif est un moyen de secours en cas de défaillance du système de pilotage dudit matériel. Son utilisation reste exceptionnelle et une maintenance après utilisation est acceptable. Ceci autorise donc l'utilisation d'éléments consommables : goupille 24 et amortisseurs à déformation plastique, qui sont destinés à être remplacé après utilisation.It is important to note that in the preferential use of protection of an operator passing the head in a hatch located near a mobile / rotating equipment, the device is a backup in case of failure of the control system said material. Its use remains exceptional and maintenance after use is acceptable. This therefore allows the use of consumables:
Claims (4)
- A secured hatch comprising a door (2) that can be opened with respect to the chassis (1) by being made to rotate around a pin (3), said pin (3) passing through at least one bearing (4, 5, 6, 7) integral with the chassis (1) and at least one hinge (8, 9, 10) integral with the door (2), such hatch comprising at least one shock-absorbing connecting rod (17) positioned between the chassis (1) and the door (2) in a substantially perpendicular direction to the door (2), said connecting rod (17) comprising a first end (18) integral with the chassis (1) and a second end (19) integral with the door (2), characterised in that the shock-absorbing connecting rod (17) comprises two parts (22, 23) sliding with respect to one another and compressing between them a shock-absorbing buffer (24) when they are brought closer together, the two sliding parts (22, 23) of the shock-absorbing connecting rod (17) being fixed together by means of a calibrated pin (25) so as to break under a predetermined load.
- A secured hatch according to Claim 1, characterised in that the shock-absorbing connecting rod (17) comprises an elastic joint (20, 21) at each one of its ends (18, 19).
- A secured hatch according to Claim 1 or 2, characterised in that the shock-absorbing buffer (24) is formed of elastomer or metal foam.
- The application of a secured hatch according to any one of the above Claims to the protection of an operator in an armoured vehicle against impacts that can be caused by the elevation or azimuth movements of a turret or weapon.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602004031990T DE602004031990D1 (en) | 2004-10-05 | 2004-10-05 | Secured flap |
AT08004329T ATE503073T1 (en) | 2004-10-05 | 2004-10-05 | SECURED FLAP |
EP08004329A EP2014857B1 (en) | 2004-10-05 | 2004-10-05 | Secured hatch |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04292361A EP1645834B1 (en) | 2004-10-05 | 2004-10-05 | Secure hatch |
EP08004329A EP2014857B1 (en) | 2004-10-05 | 2004-10-05 | Secured hatch |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04292361A Division EP1645834B1 (en) | 2004-10-05 | 2004-10-05 | Secure hatch |
EP04292361.5 Division | 2004-10-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2014857A1 EP2014857A1 (en) | 2009-01-14 |
EP2014857B1 true EP2014857B1 (en) | 2011-03-23 |
Family
ID=34931432
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04292361A Active EP1645834B1 (en) | 2004-10-05 | 2004-10-05 | Secure hatch |
EP08004329A Active EP2014857B1 (en) | 2004-10-05 | 2004-10-05 | Secured hatch |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04292361A Active EP1645834B1 (en) | 2004-10-05 | 2004-10-05 | Secure hatch |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP1645834B1 (en) |
AT (2) | ATE460636T1 (en) |
DE (2) | DE602004031990D1 (en) |
ES (2) | ES2342284T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2937671B1 (en) * | 2008-10-29 | 2010-12-17 | Nexter Systems | DAMPING DEVICE OF AN OPENING OF A MILITARY VEHICLE |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1348582A (en) * | 1964-04-10 | |||
GB511868A (en) | 1938-02-26 | 1939-08-25 | Beaton & Son Ltd G | Improvements in or relating to vehicle front windscreens |
US4623132A (en) | 1985-02-27 | 1986-11-18 | Fichtel & Sachs Industries, Inc. | Gas spring counterbalance system |
CA2018625A1 (en) * | 1990-06-08 | 1991-12-08 | Markus Dainat | Hinge |
IT1291030B1 (en) * | 1997-02-14 | 1998-12-14 | Iveco Fiat | MILITARY VEHICLE |
DE19912557A1 (en) | 1999-03-19 | 2000-09-21 | Krauss Maffei Wegmann Gmbh & C | Armored vehicle hatch |
-
2004
- 2004-10-05 AT AT04292361T patent/ATE460636T1/en not_active IP Right Cessation
- 2004-10-05 DE DE602004031990T patent/DE602004031990D1/en active Active
- 2004-10-05 ES ES04292361T patent/ES2342284T3/en active Active
- 2004-10-05 EP EP04292361A patent/EP1645834B1/en active Active
- 2004-10-05 AT AT08004329T patent/ATE503073T1/en not_active IP Right Cessation
- 2004-10-05 EP EP08004329A patent/EP2014857B1/en active Active
- 2004-10-05 DE DE602004025938T patent/DE602004025938D1/en active Active
- 2004-10-05 ES ES08004329T patent/ES2363453T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP1645834A1 (en) | 2006-04-12 |
EP1645834B1 (en) | 2010-03-10 |
EP2014857A1 (en) | 2009-01-14 |
ES2342284T3 (en) | 2010-07-05 |
ATE503073T1 (en) | 2011-04-15 |
ATE460636T1 (en) | 2010-03-15 |
DE602004031990D1 (en) | 2011-05-05 |
ES2363453T3 (en) | 2011-08-04 |
DE602004025938D1 (en) | 2010-04-22 |
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