EP3051049A1 - Automatische öffnungs-/schliessvorrichtung einer klappe - Google Patents

Automatische öffnungs-/schliessvorrichtung einer klappe Download PDF

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Publication number
EP3051049A1
EP3051049A1 EP16153401.1A EP16153401A EP3051049A1 EP 3051049 A1 EP3051049 A1 EP 3051049A1 EP 16153401 A EP16153401 A EP 16153401A EP 3051049 A1 EP3051049 A1 EP 3051049A1
Authority
EP
European Patent Office
Prior art keywords
platform
ladder
hatch
passage
scale
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
EP16153401.1A
Other languages
English (en)
French (fr)
Other versions
EP3051049B1 (de
Inventor
Yvan Barra
Gerard Cavagne
Cedric Lacroix
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.)
Campenon Bernard Centre Est
Original Assignee
Campenon Bernard Regions SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Campenon Bernard Regions SAS filed Critical Campenon Bernard Regions SAS
Publication of EP3051049A1 publication Critical patent/EP3051049A1/de
Application granted granted Critical
Publication of EP3051049B1 publication Critical patent/EP3051049B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/01—Trap-doors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/002—Workplatforms, railings; Arrangements for pouring concrete, attached to the form
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/006—Devices for preventing access
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
    • E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
    • E06C9/08—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G2001/155—Platforms with an access hatch for getting through from one level to another
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G2011/067—Integrated forms comprising shuttering skin, bracing or strutting arrangements, workplatforms and railings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/10—Steps or ladders specially adapted for scaffolds

Definitions

  • the invention relates to a device for opening a hatch, in particular a hatch covering a passage formed in a platform, and adapted for access by an operator to said platform. It will find its application in the field of construction, and more particularly in the field of the construction of works or buildings in which we use banches or scaffolding provided with such platforms.
  • platforms are often used, for example associated with a formwork box, or a scaffolding. Such platforms can be mounted on formwork panels. They are generally intended for one or more operators to circulate in order to assemble the form panels between them or to pour the concrete between the panels and monitor this operation.
  • a platform is generally supported by frames and has one or more through-passages formed in the platform.
  • the passage is covered by a hatch, and it allows operators to access the platform using a ladder disposed under said passage.
  • the hatch covers the passage formed in the platform to prevent an operator falls into the passage when traveling on the platform.
  • the hatch is generally articulated on the platform so that it can switch between a closed position and an open position when an operator is on the ladder to access the platform via the pass.
  • the operator For an operator to join the platform, he climbs the ladder and opens the hatch and crosses the passage to access the platform. Regularly, the operator escalates the ladder by having his hands loaded with materials and / or tools, and keeping a hand, if not both hands hooked to the amounts of the ladder. Thus, the operator usually pushes the hatch with his head wearing a hard hat.
  • the hatch is generally made of a solid material, for example, wood, resin, or polyurethane. It has a mass of up to ten kilograms. Furthermore, the hatch may also include a type of "door closer" system for the hatch closes after the access of the operator to the platform and prevent the hatch remains open.
  • the return spring is configured to be connected between the ladder and the platform.
  • the device comprises a damper provided with the return spring and configured to be disposed at a lower end of the ladder intended to be disposed at a bearing plane, the damper being configured to be in contact with the support plane when no force is exerted on the ladder.
  • the connecting element comprises a cable having a first end intended to be fixed to the scale, and the second end intended to be arranged on the articulation.
  • the device comprises a pulley configured to be fixed under the platform.
  • the cable connects the ladder to the hinge through the throat of the pulley.
  • the device comprises a counterweight cooperating with the hinge and the second end of the cable so as to contribute to the restoring force of the return spring to go up the ladder to the platform and keep the hatch closed in the absence an application of a force exerted on the scale.
  • the platform extends along a longitudinal axis
  • the hinge is configured so that the hatch rotates about an axis substantially parallel to the longitudinal axis to arrange the hatch to the first closed position or to the second opening position.
  • the platform extends along the longitudinal axis, and the hinge is configured so that the hatch rotates about an axis substantially perpendicular to the longitudinal axis to arrange the hatch to the first closed position or in the second open position.
  • the platform extends along the longitudinal axis
  • the device comprises sliding means configured so that the hatch slides on the platform to arrange the hatch to the first closed position or the second position opening.
  • a formwork blank comprising a circulation platform provided with a hatch configured to cover a through passage, said hatch being hinged to the platform so as to pass from a first closed position to a second position. opening of the passage adapted for the access of an operator to the traffic platform via a ladder.
  • the formwork further comprises an opening device according to one of the embodiments mentioned above.
  • the opening / closing device is advantageously configured so that that the transverse axis is substantially parallel to the longitudinal axis.
  • the transverse axis is substantially perpendicular to the longitudinal axis.
  • the shuttering panel has an additional circulation platform disposed above the traffic platform, said additional platform being provided with an additional hatch configured to cover an additional through passage, adapted for the access of an operator of the platform to the additional platform via a ladder.
  • the projection of the additional passage on the platform is offset relative to the passage along the longitudinal axis of the platform.
  • Most construction sites include formwork panels and / or scaffolding with platforms for receiving operators to perform various operations, such as pouring concrete, assembling banches, etc. Operators access a platform using a ladder via a passage covered by a hatch.
  • the figures 1 and 2 represent a perspective view of a device 10 for opening and closing a door 11 covering a passage 12 formed in a circulation platform 13.
  • the opening / closing device is intended to be mounted on the platform 13 which is assembled at the upper level of a formwork box B.
  • the platform 13 is generally based on wood or metal.
  • the frame of the platform may comprise metal longitudinal members extending longitudinally relative to the platform, on which a panel, for example, of wood can be arranged and fixed.
  • the platform 13 extends longitudinally along an axis (Ox), and is arranged substantially horizontally.
  • the platform 13 also includes the through passage 12 adapted for an operator to access the platform by climbing a scale 16 made available for this purpose.
  • the opening / closing device is intended to cooperate with the scale 16 positioned under the through passage 12.
  • the scale 16 is a standard scale used in construction sites. It comprises two longitudinal uprights 16 1 , connected by at least two steps 16 2 extending along a transverse axis (D). Generally, this type of ladder is made of a strong material, and it is configured to support the weight of an operator who can carry heavy materials or tools.
  • the hatch 11 is articulated on the platform 13, and it is configured to pass from a first closed position 14 ( figure 1 ) at a second open position 15 ( figure 2 ).
  • the hatch 11 has a rectangular shape whose dimensions are greater than those of the passage 12 also having a rectangular shape.
  • the opening / closing device 10 of the hatch 11 comprises a displacement guide 17 of the scale 16.
  • the guide 17 is configured to guide a movement of the scale 16 from top to bottom, or vice versa.
  • the guide 17 may comprise two hollow cylindrical sections 17 1 , preferably made of steel.
  • the hollow cylindrical sections 17 1 are configured so that the longitudinal uprights 16 1 can slide inside said profiles 17 1 .
  • the cross section of the profiles 17 1 has the same geometric shape as the cross section of the longitudinal uprights 16 1 of the scale 16.
  • the uprights 16 1 have a rectangular or circular cross section
  • the dimensions of the cross section of the profiles 17 1 are substantially larger than the dimensions of the cross section of the uprights 16 1 to allow the latter to slide in the cylindrical sections 17 1 .
  • the guide 17 is configured to be fixed under the platform 13 so as to have the ladder 16 under the passage 12 of the platform 13.
  • Each cylindrical section 17 1 may comprise an assembly part 25 of the profile 17 1 on the platform 13.
  • the assembly part 25 can be fixed on the profile 17 1 by screwing, bolting, welding or any other usual means allowing a solid mechanical connection between the cylindrical section 17 1 and the assembly part 25.
  • the part of assembly 25 forms with the profile 17 1 in one piece.
  • the profile 17 1 and the assembly part 25 can be made from a steel sheet or plate.
  • the connecting piece 25 has the shape of a strip of a steel plate folded in the shape of "L".
  • the connecting piece 25 has a transverse base connected by a bend to a longitudinal plate.
  • the base of the assembly part 25 extends parallel to the cross section of the cylindrical section 17 1
  • said longitudinal plate extends parallel to the generating line of the cylindrical section 17 1 .
  • the connecting pieces 25 are shaped so that when a ladder 16 is disposed in the guide 17, the longitudinal uprights 16 1 of the ladder 16 are arranged between the longitudinal plates of the connecting pieces 25 and in the same plane as said pieces.
  • Such a guide 17 advantageously avoids annoying an operator when climbing the ladder 16.
  • the longitudinal plate preferably comprises a hole for fixing the assembly part 25, and therefore the guide 17 on the platform 13.
  • the fixing hole is intended to be arranged opposite a fixing lug provided in the platform 13, so as to assemble the guide 17 on the platform 13, using a screw, a bolt, a nut, or any other means of 'assembly.
  • the opening / closing device of the hatch 11 comprises a hinge 19 intended to be mounted under the platform 13 and to be assembled integrally with the hatch 11.
  • the hinge 19 is assembled on the platform 13 by means of screws or bolts.
  • the hinge 19 is mounted under the platform 13, for example, on an attachment lug of the platform 13.
  • the hinge 19 is pivotally mounted under the platform 13 so as to be able to pivot about an axis ( Ox ') preferably parallel to the longitudinal axis (Ox).
  • the pivoting of the articulation 19 is actuated by a connecting element 20 of the opening / closing device 10.
  • the connecting element 20 is advantageously configured to be fixed at one of its ends to the scale 16, and to cooperate with the hinge 19 so that when the ladder 16 deviates from the platform 13, the connecting element 20 actuates the hinge 19 to move the hatch 11 from the first closed position 14 to the second opening position 15.
  • a fastener 26 is assembled on a longitudinal upright 16 1 of the ladder 16.
  • the fastener 26 is disposed below the displacement guide 17 so as not to hinder the translational movement of the ladder 16 to through said guide 17.
  • the piece 26 may be a fixing ring configured to be assembled around one of the longitudinal uprights 16 1 .
  • the fastener 26 preferably comprises a first plate 26 1 intended to be assembled at a first end M of the connecting element 20.
  • the end M can be likened to an attachment point.
  • the point M belonging to the connecting element 20 is fixed on the first plate 26 1 of the fastener 26, and thus the point M can be considered as being attached to the scale 16.
  • the connecting element 20 has a second end N mounted on the articulation 19.
  • the end N of the connecting element 20 is configured so as to transform the translational movement of the first end M into a pivoting movement of the joint 19.
  • the ladder 16 when the ladder 16 deviates from the platform 13, in particular when an operator presses the ladder to climb it, the ladder 16 carries with it the point M of the connecting element 20 towards the low. This translational movement of the point M causes the second end N to actuate the joint 19 by rotating it about the axis (Ox '). This allows the hatch 11 to be opened.
  • the opening / closing device 10 comprises a return spring 18 configured to exert a restoring force on the scale 16 to bring it back to the platform 13.
  • the return spring 18 contributes mainly to the closing operation of the flap 11.
  • the return spring 18 is configured to exert a force Fr having a direction opposite to the direction of the force Fa applied to the scale 16 when an operator escalates the ladder.
  • the force Fa corresponds mainly to the weight of the operator and the equipment he carries, as well as the weight of the ladder 16.
  • the stiffness of the return spring 18 is chosen so as to allow a translational movement of the ladder, the platform 13 towards, for example, a bearing plane (P).
  • the support plane (P) is preferably in contact with the lower ends of the uprights 16 1 so as to allow stability of the ladder 16.
  • the stiffness of the return spring 18 is chosen so that the spring 18 supports at least the weight of the scale.
  • the spring 18 is able to reduce the scale 16, when the latter does not undergo any force, and maintain it in a position of equilibrium above the support plane (P).
  • the return spring 18 makes it possible to move the hatch 11 from the second open position 15 to the first closed position 14, in particular when the operator leaves the ladder, or towards the support plane (P). either to the platform 13 via the passage 12.
  • the spring 18 is configured to keep the scale 16 in an initial position where the ends M and N are arranged in equilibrium positions.
  • the connecting element 20 is static and is not able to actuate the articulation 19.
  • the hatch 11 remains advantageously closed to prevent the fall of an operator traveling on the platform 13, in the passage 12.
  • the scale 16 comprises an end-of-stroke system configured to limit the stroke of the scale 16 in the displacement guide 17.
  • at least one of the uprights 16 1 of the scale 16 comprises, at its upper end, a lug 27.
  • the lug 27 is shaped so as not to pass through the hollow cylindrical sections 17 1 of the guide 17, and abut on the guide at the end of the scale stroke 16.
  • the element 27 stops the travel of the ladder 16 via the guide 17, and advantageously avoids the disengagement of the ladder 16 from the guide 17.
  • the location of the lug 27 in the scale 16 and relative to the guide 17 is chosen so as to allow a sufficient stroke of the scale 16 allowing the articulation 19 to be actuated by the connecting element 20.
  • the lug 27 can also be used to provide a scale stability 16, which can be suspended (disposed above the support plane (P)) while an operator is climbing the ladder. scale 16.
  • the elements 18, 19, 20, 26, 27 of the device 10 can be installed at a single longitudinal upright 16 1 of the scale 16 are also described.
  • said elements of the device 10 can be doubled, and equip the other longitudinal upright, to provide better stability and mechanical strength of the device.
  • the opening / closing device 10 advantageously allows easy opening of a hinged door on a platform equipped with a ladder.
  • the device according to the invention allows the operator to open the hatch automatically, simply by scaling the ladder to access the platform via a passage covered by the hatch.
  • the operator avoids the use of physical effort to push the hatch and open it. Indeed, the operator usually pushes the hatch with his head wearing a hard hat, since his hands are usually occupied.
  • the clever device according to the invention therefore makes it possible to reduce the risk of a work accident that may occur when the operator wants to join the platform, and the risk of the appearance of musculoskeletal disorders (MSD) in an operator working regularly. on this type of hatch.
  • MSD musculoskeletal disorders
  • the device according to the invention advantageously allows an automatic closing of the hatch after the operator has left the ladder.
  • Such automatic closure prevents an omission of the open hatch by a first operator, which can be a risk of falling for a second operator running on the platform.
  • the ingenious device of the invention allows an operator to easily and securely open a hatch covering a passage formed in a platform.
  • this device is easily achievable, and moreover, adaptable to any type of platform provided with a passage covered by a hatch and having a ladder.
  • platforms used in the field of building and construction works. It is sufficient to provide elements and assembly parts for arranging the opening / closing device under the platform, so as to cooperate with the scale of the platform.
  • Those skilled in the art will be able to adapt the assembly parts and the device according to the dimensions and the type of the platform or the ladder.
  • the return spring 18 is configured to be connected between the ladder 16 and the platform 13. As illustrated in FIGS. figures 1 and 2 the spring 18 extends longitudinally between two ends 18 1 and 18 2 which may have, for example, the shape of a hook. End 18 1 may be attached to an assembly member 28 having an attachment lug.
  • the connecting element 28 is preferably arranged under the platform 13.
  • the connecting element 28 is fixed under the platform 13, using a screw, or a bolt, etc.
  • the second end 18 2 of the spring 18 can be mounted on the fastener 26 which is integral with the scale 16.
  • the first plate 26 1 may comprise an ear intended to receive the hook, or the 'end 18 2 of the spring 18.
  • the part 26 may include a second plate 26 2 so that the end 18 2 is fixed thereon ( figures 1 and 2 ).
  • the arrangement of the return spring 18 according to this embodiment is advantageously easy to achieve. Indeed, the fastener 26 is used in an optimized manner and serves both to be assembled with the connecting element 20 and to be connected to one end of the return spring 18.
  • the opening / closing device 10 comprises a damper 21 provided with the return spring 18.
  • the damper 21 is intended to be mounted at the lower end of the scale 16.
  • the damper 21 is configured to be disposed at a lower end 16i of the scale 16.
  • the scale is intended to be disposed at a support plane (P).
  • the damper 21 is configured to be in contact with the support plane (P) when no force is exerted on the scale 16.
  • the damper 21 extends along an axis (OX 21 ) parallel to the longitudinal uprights 16 1 .
  • the damper 21 comprises a body 210 of cylindrical shape, provided with a compression chamber 211 inside which a piston 212 can slide to move in translation from top to bottom and vice versa.
  • the cross section of the body 210 has the same geometric shape as the cross section of the longitudinal uprights 16 1 of the scale 16.
  • the cross section of the body 210 has dimensions larger than the transverse dimensions of the uprights 16 1 , so that they can slide in the body 210.
  • the damper 21 comprises the return spring 18 extending longitudinally along the axis (OX 21 ) bearing at one end on the front face of an abutment wall 213, which is integral with the lower end of the body 210 The spring 18 is also supported at its other end on the lower part of the piston 212.
  • the piston 212 slides along the axis (OX 21 ), which is generally the axis of revolution of the cylindrical shape of the compression chamber 211. Said sliding occurs from top to bottom during the compression of the piston. damper 21, especially when a force Fa is applied to one of the longitudinal uprights 16 1 which bears on the piston 212. The upright 16 1 is then likened to the piston rod 212.
  • the damper 21 is provided with a support pad 214 on the plane (P).
  • the shoe 214 is movably connected to the wall 213.
  • the shoe 214 may have a rectangular shape, and preferably has dimensions greater than the dimensions of the cross section of the shock absorber 21.
  • the damper 21 advantageously comprises a telescopic rod 215, extending longitudinally along the axis (OX 21 ) from the wall 213 to the pad 214.
  • the rod 215 adjusts the height between the damper 21 of the plane of support (P).
  • the skid assembly 214 and rod 215 advantageously make it possible to offer a stable seat to the damper 21 receiving the ladder 16.
  • the connecting element 20 is advantageously formed by a rod pivotally mounted at its ends at the points M and N. Said rod extends longitudinally between the points M and N, and it is preferentially steel.
  • the connecting element 20 may also comprise a cable 31 having a first end 31e intended to be attached to the scale 16, for example at the point M ( figure 4a ).
  • the second end 31a of the cable 31 is intended to be assembled on the hinge 19, for example on the point N.
  • the opening / closing device 10 comprises a pulley 32 configured to be fixed under the platform 13.
  • the pulley 32 is disposed under the platform 13, so that the cable 31 connects the ladder 16 and the hinge 19 through the groove of the pulley 32.
  • the pulley 32 advantageously makes it possible to transfer the translation movement downwards, of the scale 16 and of the point M of the cable 31, in a tensioning force Ft of the end 31a of the cable 31 at the point N. According to this embodiment, the cooperation between the cable 31, the pulley 32 and the hinge 19 is more efficient, and the opening device is more compact and easy to assemble.
  • the opening / closing device 10 advantageously comprises a system based on a counterweight 33.
  • the counterweight 33 is intended to cooperate with the hinge 19 and the second end 31a of the cable 31.
  • the counterweight 33 contributes advantageously to the return force of the spring 18 to go up the ladder 16 to the platform 13 and keep the hatch 11 closed in the absence of a force Fa applied to the scale 16.
  • an actuating rod 34 cooperates with the hinge 19 to move the hatch from an open position to the closed position or vice versa.
  • the rod 34 extends longitudinally under the platform 13 along a preferably vertical axis to the platform 13.
  • the rod 34 has in its lower end, an eyelet for receiving the end 31 of the cable 31.
  • the other end 31e of the cable is fixed on the connecting piece 26 at the point M.
  • the cable connects the piece 26 and the rod 34 through the groove of the pulley 32.
  • the counterweight 33 is arranged projecting from the rod 34 between the articulation 19 and the eyelet receiving the end 31a of the cable 31.
  • the counterweight 33 advantageously enables the return spring 18 to be assisted in its function of returning the scale 16 and closing the hatch 11.
  • the counterweight 33 can also replace the spring 18.
  • the arms 41, 42, 43 are preferably longitudinal metal plates.
  • the first arm may be pivotally articulated at a point Q disposed in the connecting member 28.
  • the connecting member 28 may include an eyelet for receiving a conventional joining means for pivotally articulating a end of the arm 41 at the point Q of the element 28.
  • the arm 41 is hinged to pivot with the platform 13.
  • the second arm 42 can be pivotally articulated at the point M of the connecting element 26 included in the scale 16.
  • the third arm 43 is assembled on the hinge 19, preferably pivotally, so as to cooperate with this articulation to actuate the opening or closing of the hatch 11.
  • first 41, second 42 and third arm 43 are interconnected pivotally at a hinge point S belonging neither to the scale 16 nor to the platform 13, so that when the scale 16 s 13 away from the platform 13, the ladder 16 drives the second arm 42.
  • the arm 42 drives the hinge point S, for example towards the support plane (P), by pulling on the third arm 43 to actuate the articulation 19.
  • the actuation of the joint then makes it possible to move the hatch 11 from the first closed position 14 to the second open position 15.
  • the scissor mechanism 40 acts so that the pivot point S is driven towards the platform 13.
  • the third arm 43 is pushed towards the platform 13 to actuate the articulation 19.
  • the actuation of the hinge 19 then makes it possible to move the hatch 11 from the second open position 15 to the first closed position 14.
  • a scissor mechanism advantageously allows slow opening and closing of the hatch.
  • a slow opening of the hatch makes it possible to alert an operator on the platform of the operation of opening the hatch.
  • the security of the operators working on the platform is improved.
  • a slow closure of the hatch avoids a violent impact between the hatch and the platform, thus avoiding degradation and rapid wear of these elements.
  • the hinge 19 is configured so that the hatch 11 rotates about an axis (Ox ') substantially parallel to the longitudinal axis (Ox).
  • the hatch 11 is articulated on the platform 13 so as to pivot about an axis (Ox ') substantially parallel to the longitudinal axis (Ox) of the platform 13.
  • the passage 12 is delimited by two longitudinal sides and two transverse sides of a rectangle.
  • longitudinal side is meant a side extending along the longitudinal axis (Ox).
  • the hatch 11 can be hinged to the platform by means of a hinge assembled integrally on the hatch with screws or bolts, or any other usual means of attachment.
  • the hinge may also be formed by a strip of the body of the hatch 11.
  • the axis of rotation (Ox ') is preferably disposed over the entire length of the longitudinal side, proximal to the panel B. In other words, the joint 19 is extruded along said longitudinal side of the hatch 11.
  • the hinge 19 is configured so that the hatch 11 rotates about an axis (Ox ") substantially perpendicular to the longitudinal axis (Ox) to have the hatch 11 at the first closed position 14 or at the second open position 15.
  • the opening / closing device advantageously remains flexible regarding the direction and the opening mechanism of the hatch.
  • the opening / closing device 10 comprises sliding means 50 configured so that the hatch 11 slides on the platform 13 to arrange the hatch 11 at the first closed position 14 or at the second open position 15.
  • the drive means may comprise, for example, a driving pulley actuated by the articulation 19 and mounted on the platform 13, and one or more return pulleys fixed on the hatch 11 and on the platform 13.
  • the different pulleys are connected between them by a belt.
  • the present invention also relates to a formwork panel comprising a platform provided with one of the opening / closing devices as described above.
  • formwork box B comprises the circulation platform 13 provided with the hatch 11 configured to cover the passage 12 through.
  • the hatch 11, as previously described, is hinged to the platform 13 so as to move from a first closed position 14 to a second open position.
  • the passage 12 is adapted for the access of an operator to the traffic platform 13 via the ladder 16.
  • the panel B further comprises an opening / closing device 10 according to one of the embodiments described above.
  • the formwork board B comprises a platform 13 extending along the longitudinal axis (Ox).
  • the scale (16) has steps (16 2) extending along a transverse axis (D).
  • the ladder 16, the hatch 11, and the opening / closing device 10 are then arranged so that the transverse axis (D) is substantially parallel to the longitudinal axis (Ox).
  • the ladder 16, the hatch 11, and the opening / closing device 10 are arranged so that the transverse axis (D) is substantially perpendicular to the longitudinal axis (Ox).
  • FIG. figure 7 formwork board B as described above.
  • the panel B further comprises an additional circulation platform 13 1 disposed above the traffic platform 13.
  • the additional 13 platform 1 is provided with an additional trap January 11 configured to cover an additional 1 passage 12 therethrough adapted to access an operator of the platform 13 to the platform 13 additional 1 via an additional scale 16 '.
  • the projection 12 2 of the additional passage 12 1 on the platform 13 is offset relative to the passage 12 along the longitudinal axis (Ox) of the platform 13.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
EP16153401.1A 2015-01-30 2016-01-29 Schalung oder gerüst bestehend aus eine automatische öffnungs-/schliessvorrichtung einer klappe Active EP3051049B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1550754A FR3014463B1 (fr) 2015-01-30 2015-01-30 Dispositif d'ouverture/fermeture automatique d'une trappe

Publications (2)

Publication Number Publication Date
EP3051049A1 true EP3051049A1 (de) 2016-08-03
EP3051049B1 EP3051049B1 (de) 2021-04-28

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EP16153401.1A Active EP3051049B1 (de) 2015-01-30 2016-01-29 Schalung oder gerüst bestehend aus eine automatische öffnungs-/schliessvorrichtung einer klappe

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EP (1) EP3051049B1 (de)
FR (1) FR3014463B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109050793A (zh) * 2018-07-06 2018-12-21 浙江海洋大学 一种回弹式船舶舱口盖限位装置
US11920397B1 (en) 2022-10-28 2024-03-05 Tie Down, Inc. Hatch lift assist device

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BE1023581B1 (nl) * 2015-08-25 2017-05-09 Teplux Bvba Inrichting voor het afdekken van een trapopening
CN114439291B (zh) * 2022-01-25 2024-04-26 中铁三局集团建筑安装工程有限公司 柱式检查坑现浇混凝土轨道立柱及施工方法
FR3138159B1 (fr) * 2022-07-19 2024-08-16 Sateco Sa Structure pliable de sécurisation pour un chantier de construction

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FR2789420A1 (fr) * 1999-02-05 2000-08-11 Altrad Dev Plate-forme d'echafaudage avec trappe d'acces pour la construction de paroi verticale
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CN109050793A (zh) * 2018-07-06 2018-12-21 浙江海洋大学 一种回弹式船舶舱口盖限位装置
US11920397B1 (en) 2022-10-28 2024-03-05 Tie Down, Inc. Hatch lift assist device

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