EP4368808A1 - Höhenzugangsvorrichtung mit verformungskompensation - Google Patents

Höhenzugangsvorrichtung mit verformungskompensation Download PDF

Info

Publication number
EP4368808A1
EP4368808A1 EP23202836.5A EP23202836A EP4368808A1 EP 4368808 A1 EP4368808 A1 EP 4368808A1 EP 23202836 A EP23202836 A EP 23202836A EP 4368808 A1 EP4368808 A1 EP 4368808A1
Authority
EP
European Patent Office
Prior art keywords
cover
ladder
panel
contact elements
rungs
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.)
Pending
Application number
EP23202836.5A
Other languages
English (en)
French (fr)
Inventor
Christian PELSER
Charles Coutier
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.)
Coutier Industrie SARL
Original Assignee
Coutier Industrie SARL
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 Coutier Industrie SARL filed Critical Coutier Industrie SARL
Publication of EP4368808A1 publication Critical patent/EP4368808A1/de
Pending legal-status Critical Current

Links

Images

Classifications

    • 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

Definitions

  • the present invention relates to the field of access to height of installations such as porticos or parts of buildings such as roofs, floors or passageways.
  • a height access device generally comprises a ladder having two uprights between which rungs extend, and an access locking device comprising a panel having a lower edge hinged on the ladder to pivot about a horizontal axis between a prohibiting position in which the panel is pressed against the ladder and prevents a user from using the rungs of the ladder and an authorization position in which the panel is moved away from the ladder and allows use rungs of the ladder.
  • the panel has an upper edge provided with a cover formed of a substantially horizontal plate intended to be engaged between two bars and the uprights of the ladder when the panel is in the prohibited position.
  • a disadvantage of current height access devices is that the ladder tends to deform when a user climbs on the lower rungs or exhibits deformation resulting from a fault in assembling the ladder or fixing the ladder.
  • ladder to its support which creates constraints on the entire locking device but also on the attachments of the ladder to the building or installation that it equips. To avoid these constraints, it is customary to leave relatively large clearances between the locking device and the ladder. However, these games harm operation of the locking device and therefore the safety of use of the height access device.
  • the invention aims in particular to remedy at least partly the aforementioned drawbacks.
  • a height access device comprising a ladder having two uprights between which bars extend, and an access locking device comprising a cover articulated on the ladder to pivot around a horizontal axis between a prohibiting position in which the cover extends projecting from a front face of the ladder between the uprights and two adjacent rungs of the ladder and prevents a user from accessing the upper rungs of the ladder above the cover and an authorization position in which the cover is retracted from the front face of the ladder and allows the use of the upper rungs of the ladder.
  • the cover is received between two contact elements secured to the scale and positioned to rest on the sides of the cover whatever the position of the cover which is arranged to take up the forces transmitted by the contact elements, the contact elements and the sides of the cover being arranged to cooperate with each other so as to limit friction when the cover moves between its two positions when the contact elements are resting against the sides of the operculum.
  • the cover always includes a part extending between the contact elements whatever its position between the prohibited position and the authorization position.
  • the presence of contact elements makes it possible to limit the operating clearances traditionally necessary to compensate for scale deformations.
  • the cover can provide a function of stiffening the ladder by preventing deformation thereof when the ladder is installed with the locking device in position.
  • the height access device comprises a ladder 1, here inclined, comprises horizontal bars 2 between two side uprights 3 and 4. Between each pair of bars 2 adjacent to each other, extends an inter-bar space.
  • the height access device according to the invention further comprises a locking device comprising a panel 5 whose length is sufficient to cover several rungs 2 of the ladder 1 and whose width is at least substantially that of the ladder 1 taken between the uprights 3 and 4.
  • the panel 5 is articulated on the ladder 1 to extend behind it and be movable between a first state, or prohibited position, in which the panel 5 is applied against a rear face of the ladder 1 opposite its access face or front face and a second state, or authorization position, in which the panel 5 is distant from this rear face of the ladder 1.
  • This panel 5 is shaped so that its current cross section has a central part which, when the panel 5 is in its first state, crosses the average plane of the ladder 1 (the average plane is the plane parallel to the rungs 2 and the uprights 3, 4 and which passes through the middle of the rungs 2 and the uprights 3, 4), in other words, said central portion of the panel 5 passes between the rungs 2 until it extends beyond the average plane of the ladder 1.
  • the function of this configuration is to make the rungs 2 of the ladder 1 inaccessible by making it impossible to support the foot or the grip of the hand.
  • the central part of the panel 5 then occupies the inter-bar space 2 sufficiently to prevent the user's foot or hand from penetrating this space to press correctly on the lower bar or to grip it.
  • the bars 2 are then housed in housings here in the form of cutouts 6 made in this central part, when the panel 5 is folded down on the ladder, which allows the central part to partly occupy the interspace. bars.
  • the panel 5 is articulated to the scale around an axis 7 parallel to the bars 2, by its lower part and more precisely by means of arms 8 and 9 extending the panel 5 downwards beyond its lower transverse edge 5a .
  • the arms 8, 9 make it possible to have a panel in which the axis 7 is distant from the lower transverse edge 5a in a longitudinal direction of the panel 5 (and of the scale 1 when the panel 5 is folded against the scale 1).
  • the lower part of the panel 5 is moved away from the ladder 1 so that the user's foot can rest on the first bar 2 exposed.
  • panel 5 is located at the rear of scale 1 so that the effect of gravity tends to move it away from it.
  • Panel 5 has an upper part connected to each of the uprights 8, 9 by a compass 40 comprising a first connecting rod 40.1 having one end hinged to the upright 8, 9 and an opposite end hinged to one end of a second connecting rod 40.2 having an opposite end hinged to one side of the upper part of the panel 5.
  • the first connecting rod 40.1 is extended beyond its articulation to the second connecting rod 40.2 by a lever to the free end of which is attached one end of a return member 41 having an opposite end attached to a lug secured to the the end of the second connecting rod articulated to the panel 5.
  • the return member 41 tends to fold the panel 5 against the ladder 1.
  • the panel 5 has the shape of a box whose front face 13 has cutouts 6 delimiting between them front walls 13', 100 intended to occupy the inter-bar space when the panel 5 is in its first state.
  • the front walls 13', 100 have dimensions substantially equal to the inter-bar space and comprise fixed front walls 13' and a movable front wall here the lower front wall 100 located between the lower transverse edge 5a and the adjacent cutout 6 .
  • the lower front wall 100 is articulated on a supporting structure 101 of the panel 5 (such as longitudinal stiffening edges extending on each side of the panel 5) to have a lower part movable between an advanced position near the ladder 1 and a position moved back away from the ladder 1, the lower front wall 100 having an upper part provided with a lever arranged to bear against the ladder 1, and more particularly a bar 2 thereof, when the panel 5 is in its first state, so as to maintain said lower part of the lower front wall 100 in its advanced position and which is detached from the ladder 1 when the panel 5 is in its second state to release the pivoting of said lower part of the lower front wall 100 towards its rearward position.
  • the panel 5 when the panel 5 is in its first state, it is pressed against the ladder 1 and prevents an unauthorized user from placing their feet on the bars 2 to climb up the ladder 1.
  • the panel 5 When the panel 5 is in the second state, the removal of the panel 5 in combination with the movement of the lower front wall 100 in the retracted position makes it possible to obtain a spacing of the lower front wall 100 relative to the neighboring bar 2 such as the user can place his foot correctly, safely and comfortably on said bar 2.
  • the box defines an interior space between the cut-out front face 13 and a solid rear face which makes it possible to accommodate control mechanisms of a bolt having an extended position for maintaining the panel 5 in its first state and a retracted position for releasing the panel 5.
  • the panel 5 is provided with a mechanism for locking the bolt in the extended position.
  • This mechanism for example a key lock barrel or a padlock system, is known in itself and is not detailed here.
  • the locking device comprises a cover 14, integral with an upper edge of the panel 5 to extend substantially perpendicular to the face 13 of the panel 5, and whose width is less than the spacing of the uprights 3, 4 of the ladder 1.
  • the cover 14 is articulated on the scale 1 to pivot around a horizontal axis between a prohibited position in which the cover 14 extends projecting from a front face of the ladder between the uprights 3, 4 and two adjacent rungs 2 of the ladder 1 and prevents a user from accessing the upper rungs 2 of the ladder above the the cover 14 and an authorization position in which the cover 14 is retracted from the front face of the ladder 1 and allows the use of the upper rungs 2 of the ladder 1.
  • the cover 14 in the prohibited position forms both an obstacle for access to the ladder and a resting place for a user of ladder 1 located above panel 5.
  • the cover 14 is received between two contact elements 200 secured to the scale 1 and positioned to bear on the sides 201 of the cover 14 whatever the position of the cover 14.
  • the cover 14 is arranged to take up the forces transmitted by the contact elements 200 and can stiffen the ladder 1 when fixing the height access device to the building.
  • the contact elements 200 are here each formed of a roller pivotally mounted around an axis substantially parallel to the uprights 3, 4 in a yoke 202 fixed on one of the uprights 3, 4 of the ladder 1.
  • the sides 201 of the cover 14 are flat surfaces parallel to the pivot axis of the rollers to each form a rolling track for one of the rollers.
  • the contact elements 200 and the sides 201 of the cover 14 are thus arranged to cooperate with each other so as to allow friction to be limited during movement of the cover 14 between its two positions when the elements of contact 200 are supported against the sides 201 of the cover 14. It is understood that, when the contact elements are supported against the sides 201, the cover 14 opposes a rimpedement of the amounts 3, 4 one on the other and therefore to any distortion of scale 1 which would tend to produce such a rimpedement.
  • the cover 14 is provided with at least one stop 203 defining its authorization position in such a way that the contact elements 200 face the sides 201 of the cover 14 in the authorization position.
  • the stop 203 comes to rest against a part 204 of one of the yokes 202 and prevents the cover 14 from being disengaged from the contact elements 200.
  • the cover 14 comprises at its free end, a pedal 15 for retracting a stop 16.
  • the pedal 15 and the stop 16 are pivotally mounted, the first so that it can be pressed against a return member and the second to be held projecting above the end of the cover 14 by its own return member.
  • the return member of the pedal 15 is for example dimensioned so that the pedal 15 can only be depressed by the exercise of a relatively large effort (for example around twenty daN) in order in particular to avoid accidental depression of the pedal 15 (and therefore an untimely opening of the cover 14) by the user when descending the ladder or to avoid any attempt to open it by hand from the bottom of the ladder.
  • the pedal 15 is connected to the bolt by a first control mechanism which comprises a set of levers and rods in such a way that the bolt, which normally projects out of the lock, can be retracted by action on the barrel, by means of a key specific to the authorized user or by the pedal 15.
  • the maneuver of the bolt by the barrel is independent of the operation of the bolt by the pedal 15 and vice versa.
  • the pedal 16 is connected to a pusher fixed on the panel 5 in the vicinity of the barrel by a second control system so that pressing the pusher causes the stop 16 to retract.
  • the authorized user in front of the locked lock, acts with his key or any other operating device on the cylinder to retract the bolt.
  • the panel 5 can then be manually moved away from the ladder until the stop 16, sliding and retracting under a bar 2 thereof (this bar is called a stop bar subsequently to distinguish it from the others) thanks to the slope that it presents in the upper part, comes to protrude again behind this bar and retains the separated panel against its return member.
  • the user comfortably crosses the bars thus discovered until reaching a bar 2 above the stop bar which cooperates with the stop 16. He can then easily press (directly or via an intermediate mechanism ) with his foot on the stop 16 which can then go back under the stop bar and let the panel be folded down by the return member.
  • the locking mechanism may be different from that described.
  • the ladder can be inclined or vertical, with or without a crinoline.
  • a substantially horizontal cover will preferably be used.
  • the bolt can be connected to a locking latch or lock or any other means of locking.
  • the return member can be arranged to hold the panel 5 in the open position, in particular when the hinge pin is above the panel 5.
  • the operculum can occupy all or part of the cross section of the crinoline.
  • the cover can be arranged to extend to the lower end of the crinoline or inside it.
  • the device in which the panel is articulated to the scale in the lower part, is equipped a return member of said panel in position away from the rear face of the ladder.
  • the stop can be arranged to be retractable in a housing of the cover so as not to injure an operator who falls on the cover.
  • the means for connecting the panel 5 to the ladder may be devoid of arms: the hinge axis is then close to the lower transverse edge of the panel.
  • the panel may include one or more movable front walls, or none.
  • the panel may comprise several sections assembled to form the complete panel. For example, it is possible to provide a section comprising only movable front walls and a section comprising only fixed front walls.
  • the front walls can be flat, vertical or inclined, or have a dihedral or curved shape.
  • the panel may be provided or devoid of means for returning it to its first state and/or its second state.
  • the panel may comprise a fixed front wall in the form of a flat sheet applied against the rear face of the ladder without extending into the space between the rungs of the ladder.
  • the panel can be produced in a manner different from that described, for example: by deformation of sheets, and/or by machining of sheets and/or plates, by dismountable or non-dismountable assembly, etc.
  • the housings of the panel 5 formed by the cutouts 6 can be produced by plastic deformation in the form of recesses of the panel 5.
  • the angular movement of the movable front walls between their two positions can be between a few degrees and 90 degrees or even more (for example, for a ladder inclined 90°, plus the inclination of the ladder).
  • the locking device may have no panel, the cover being directly articulated on the scale.
  • rollers can be replaced by sliding pads 200 which currently have a low coefficient of friction with the sides of the cover 14.
  • the sliding pads are for example made of bronze, PTFE, polyamide, etc.
  • the contact elements can be fixed at any point on the ladder such as the rungs or the uprights.
  • integrated to the amount we mean either integrated into the amount, or fixed directly to the amount, or fixed to an element integral with the amount such as a stiffening edge fixed to the amount.
  • each side 201 of the cover 14 can be provided with a sliding coating (for example in PTFE or polyamide) and each of the uprights of the ladder then integrates a part forming a contact element by bearing on said sliding coating .
  • each side 201 is provided with a sliding tongue 201' to support the uprights 3, 4 of ladder 1.
  • the contact elements may be permanently supported against the sides 201 or not.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
EP23202836.5A 2022-11-08 2023-10-10 Höhenzugangsvorrichtung mit verformungskompensation Pending EP4368808A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2211628A FR3141714A1 (fr) 2022-11-08 2022-11-08 Dispositif d’accès en hauteur à compensation de déformation

Publications (1)

Publication Number Publication Date
EP4368808A1 true EP4368808A1 (de) 2024-05-15

Family

ID=84819830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23202836.5A Pending EP4368808A1 (de) 2022-11-08 2023-10-10 Höhenzugangsvorrichtung mit verformungskompensation

Country Status (2)

Country Link
EP (1) EP4368808A1 (de)
FR (1) FR3141714A1 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022069173A1 (fr) * 2020-09-30 2022-04-07 Coutier Industrie Dispositif de gestion de l'acces et d'usage d'une echelle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022069173A1 (fr) * 2020-09-30 2022-04-07 Coutier Industrie Dispositif de gestion de l'acces et d'usage d'une echelle

Also Published As

Publication number Publication date
FR3141714A1 (fr) 2024-05-10

Similar Documents

Publication Publication Date Title
EP1644604B1 (de) Zunge zum verbinden zweier verkleidungen einer flugzeugstruktur
EP2448787B1 (de) Vorrichtung zur bereitstellung einer schreiboberfläche in einem motorfahrzeug sowie instrumententafel mit einer solchen vorrichtung
EP2551199A1 (de) Sperrriegel
FR2978192A1 (fr) Element de separation pour cabine de plateforme comprenant un mecanisme a bielle de deplacement d'un ouvrant
EP4222336A1 (de) Vorrichtung zur verwaltung des zugangs zu und der verwendung einer leiter
EP4368808A1 (de) Höhenzugangsvorrichtung mit verformungskompensation
EP2516778B1 (de) Absperrvorrichtung und entsprechende baugruppe
FR2841886A1 (fr) Dispositif de protection retractable pour cabine d'ascenseur
EP2715894B1 (de) Zugangsklappe für elektrogeräte
FR2877681A1 (fr) Procede pour verrouiller un panneau, tel qu'une couverture pour piscine, dans un dispositif de verrouillage et pour l'en retirer, ce dispositif et installation de couverture pour piscine l'incorporant
EP1718827B1 (de) Antipanikstange und damit ausgerüstete tür
FR2667647A1 (fr) Systeme manóoeuvrable d'arret d'un battant de volet et ensemble de crochetage dudit battant.
FR2934300A1 (fr) Dispositif entrebailleur pour ouvrant
EP4353942A1 (de) Vorrichtung zur verwaltung der nutzung einer leiter
EP0282385B1 (de) Vorrichtung zur Verankerung an Dachsparren bei Dacharbeiten
EP3530851B1 (de) Verriegelungssystem für eine brandschutztür mit seitlicher verschiebung
EP0690200B1 (de) Sperreinrichtung für Rolladen
FR2881073A1 (fr) Mecanisme de verrouillage et de deverrouillage pour couteau pliant
WO2024079025A1 (fr) Dispositif de blocage de porte comprenant un axe cranté
EP2299039B1 (de) Verriegelungs-/Entriegelungsvorrichtung eines Garagentors oder Ähnlichem
EP0230690A2 (de) Diebstahlsicherungsvorrichtung zur Verhinderung des Gebrauchs der Pedalen eines Fahrzeuges
EP2256008A1 (de) Schutzvorrichtung zum Zurückhalten eines Passagiers auf einem Fahrzeugssitz, und entsprechender Fahrzeugsitz
FR2777929A1 (fr) Plate-forme telescopique
EP1164244A2 (de) Anhebevorrichtung für den Flügel einer Tür, eines Fensters oder dergleichen
FR2862679A1 (fr) Escalier et echelle pliables a encombrement reduit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR