EP2647784B1 - Restrictor arm for holding a door or window in a predetermined open position relative to a frame - Google Patents

Restrictor arm for holding a door or window in a predetermined open position relative to a frame Download PDF

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Publication number
EP2647784B1
EP2647784B1 EP13161664.1A EP13161664A EP2647784B1 EP 2647784 B1 EP2647784 B1 EP 2647784B1 EP 13161664 A EP13161664 A EP 13161664A EP 2647784 B1 EP2647784 B1 EP 2647784B1
Authority
EP
European Patent Office
Prior art keywords
distal portion
proximal portion
door
arm
opening
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.)
Not-in-force
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EP13161664.1A
Other languages
German (de)
French (fr)
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EP2647784A1 (en
Inventor
Fabrice Garnier
Louis Condemine
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Assly
Original Assignee
Assly
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Publication date
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Publication of EP2647784A1 publication Critical patent/EP2647784A1/en
Application granted granted Critical
Publication of EP2647784B1 publication Critical patent/EP2647784B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/32—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of two or more pivoted rods
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
    • E05C17/24—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod pivoted at one end, and with the other end running along a guide member
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0054—Fraction or shear lines; Slip-clutches, resilient parts or the like for preventing damage when forced or slammed
    • E05B17/0058—Fraction or shear lines; Slip-clutches, resilient parts or the like for preventing damage when forced or slammed with non-destructive disengagement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0054—Fraction or shear lines; Slip-clutches, resilient parts or the like for preventing damage when forced or slammed
    • E05B17/0062—Fraction or shear lines; Slip-clutches, resilient parts or the like for preventing damage when forced or slammed with destructive disengagement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/30—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing of extensible, e.g. telescopic, construction

Definitions

  • the present invention relates to a scissor arm and a window or a door equipped with the scissor arm.
  • a window or door traditionally comprises a frame mounted in a bay and at least one opening rotatably mounted on the frame, between an open position in which the opening releases a passage through the frame and a closed position in which opening closes this passage.
  • the left arm is connected to the frame and the opening. It keeps the opening in a predetermined open position.
  • shocks to known windows or doors are directly transmitted to the left arm, which can break.
  • the opening is no longer maintained by the left arm and can be moved freely. This results, in addition to material damage, a significant decrease in the level of safety insofar as the stay arm does not fulfill its function of maintaining the opening in its predetermined open position, nor a function of opening limiter.
  • a compass for a door It is for example known from the patent document GB577379 a compass for a door.
  • the compass is connected at each of its ends by a pivot connection, either to a door or to the door frame. Even if the compass bends when the door is folded against the door frame, the ends of the compass are subjected to mechanical stresses likely to damage them in case of violent folding of the door against the door frame.
  • the subject of the present invention is a scissor arm according to claim 1.
  • the scissor arm according to the invention offers the possibility of withstanding violent shocks without breaking, so that it continues to ensure after a violent shock its cracking function, or at least one limiter function d 'opening.
  • extended perennial position position corresponding to a normal use position in which the arm allows the movement of the opening relative to the frame between the predetermined open position and the closed position, and wherein the arm is particularly adapted to maintain the opening in the predetermined open position.
  • retracted exceptional position is meant position reached in rare situations of operation corresponding to emergency situations, for example following a violent shock, wherein the distance separating one end of the proximal portion intended to be connected to the frame and one end the distal portion intended to be connected to the opening is minimal.
  • Efforts transmitted to the arm as a result of minor shocks are cashed directly by the arm if it can resist; if necessary, the proximal portion and the distal portion are kept substantially immobile relative to each other by the stabilizing means.
  • the forces transmitted to the arm as a result of a violent shock against the opening are cashed by the frame, against which is pressed the opening after the shock.
  • the proximal portion and the distal portion articulate to preserve the physical integrity of the arm and that the opening can bear against the frame.
  • proximal portion and the distal portion are rotatable relative to each other.
  • This feature makes it possible to create tangential components of the thrust force on the arm to cause the displacement of an end of the distal portion to which is attached a stud mounted sliding in a light of the opening.
  • the stud moves in the light so as not to constrain the arm.
  • This additional degree of freedom corresponding to the translation displacement of the stud in the light substantially reduces the stresses to which the arm is subjected in comparison with the pre-existing solutions.
  • the proximal portion and the distal portion in extended deployed position form between them an angle ⁇ calculated to allow rotation in a clockwise direction of the distal portion relative to the proximal portion.
  • the angle ⁇ is between 135 ° and 180 ° when the proximal portion and the distal portion are in the deployed position.
  • the stabilization means comprise snap-fastening means of the proximal portion and of the distal portion adapted for snapping the proximal portion and the distal portion in the deployed extended position.
  • the latching means comprise at least one flexible member adapted for engagement or disengagement of a tenon in a mortise.
  • the stabilizing means comprise elastic return means connecting the distal portion and the proximal portion and tending to maintain the distal portion and the proximal portion in extended deployed position.
  • the elastic return means comprise a spring whose one end is attached to the proximal portion and whose other end is attached to the distal portion.
  • the spring is advantageously dimensioned to generate a restoring force preventing rotation of the distal portion and the proximal portion about the axis as long as the torque exerted on the axis is less than or equal to the predetermined threshold value and allowing the rotation portion distal and the proximal portion about the axis as soon as the torque exerted on the axis is greater than the predetermined threshold value.
  • the spring may be a compression spring or a torsion spring.
  • the stabilization means comprise means for friction of the distal portion and of the proximal portion adapted to generate friction forces opposing the displacement of the distal portion relative to the proximal portion.
  • the friction means comprise a first functional surface arranged on the proximal portion to bear against a second functional surface arranged on the distal portion.
  • the first functional surface and the second functional surface are advantageously dimensioned to generate a friction preventing rotation of the distal portion and the proximal portion about the axis as long as the torque exerted on the axis is less than or equal to the threshold value. predetermined and allowing rotation of the distal portion and the proximal portion about the axis as soon as the torque exerted on the axis is greater than the predetermined threshold value.
  • the stabilizing means are reversible.
  • the stabilizing means are adapted to maintain again the proximal portion and the distal portion in an extended position after an impact having caused rotation of the proximal portion and the distal portion about the axis.
  • the arm can thus fill again its function of cracking.
  • the stabilization means comprise a connecting member integral with the distal portion and the proximal portion, the connecting member being intended to break as soon as the thrust force on the arm exceeds the predetermined threshold value.
  • the arm can not provide a cracking function again; however, it provides an opening limiter function to maintain a high level of security.
  • a window or a door comprising an opening, a frame, and a door arm having the above characteristics.
  • the frame can also correspond to a frame fixed in a bay to an opening or leaf which is kept locked in a closed position (one can also also speak of leaf or opening semi-fixed).
  • FIGS 1 and 2 show schematically an arm 1 stayer according to one embodiment of the invention.
  • the arm 1 stay is intended to maintain an opening 2 in a predetermined open position relative to a frame 4, as shown in FIG. figure 1 .
  • an opening limiting arm only offers the possibility of limiting the opening of the opening to a predetermined opening position, but does not offer the possibility of maintaining the opening in this predetermined opening position.
  • the opening 2 and the frame 4 are here partially represented.
  • the stay 1 arm here comprises a proximal portion 6 and a distal portion 8.
  • the proximal portion 6 comprises an end 10 intended to be connected to the frame 4.
  • the distal portion 8 comprises an end 12 intended to be connected to the opening 2.
  • the end 12 of the distal portion 8 is attached to a stud 14 slidably mounted in a lumen 16.
  • the lumen 16 may correspond to a lumen formed in a headrest 18, for example a latch (not shown) for locking in the closed position of the opening 2, the headrest 18 being attached to the opening 2.
  • the stay arm 1 comprises connecting means arranged to connect the proximal portion 6 and the distal portion 8.
  • the connecting means allow a relative displacement of the proximal portion 6 and the distal portion 8 relative to each other .
  • the connecting means here comprise an axis of rotation around which are articulated the proximal portion 6 and the distal portion 8.
  • the proximal portion 6 and the distal portion 8 are movable (here in rotation) between an extended perennial position, visible on the figures 1 , 3 , 6 , 8 , 10 and 12 , and an exceptional retracted position (not shown).
  • the figures 2 , 5 , 7 , 9 , 11 and 13 show the proximal portion 6 and the distal portion 8 in an intermediate position between the extended perennial position and the retracted exceptional position.
  • the stay arm 1 also comprises stabilization means, described in more detail below, arranged to maintain the proximal portion 6 and the distal portion 8 in extended perennial position as long as a thrust force on the arm 1 stay is lower or equal to a predetermined threshold value, and to allow the relative displacement of the distal portion 8 and the proximal portion 6 to the retracted exceptional position as soon as the thrust force on the arm 1 stay exceeds the predetermined threshold value.
  • stabilization means described in more detail below, arranged to maintain the proximal portion 6 and the distal portion 8 in extended perennial position as long as a thrust force on the arm 1 stay is lower or equal to a predetermined threshold value, and to allow the relative displacement of the distal portion 8 and the proximal portion 6 to the retracted exceptional position as soon as the thrust force on the arm 1 stay exceeds the predetermined threshold value.
  • the stabilization means prevent, when the proximal portion 6 and the distal portion 8 are in extended deployed position, the relative rotation of the proximal portion 6 and the distal portion 8 as a torque at the axis 20 is less than or equal to a predetermined threshold value, but allow this rotation (only) when the torque at the axis 20 is greater than the predetermined threshold value.
  • the predetermined threshold value is calculated to prevent breakage of the arm 1 stay.
  • the arm 1 stay is able to withstand without breaking the mechanical stresses generated by this effort.
  • the force exceeds the predetermined threshold value, it means that the arm 1 stay could break; also, the stabilization means allow in this case the rotation of the proximal portion 6 and the distal portion 8.
  • the proximal portion 6 and the distal portion 8 may be arranged substantially obliquely relative to each other, and not necessarily aligned perfectly rectilinear as shown on the figure 1 .
  • the proximal portion 6 and the distal portion 8 deployed in extended position form between them an angle ⁇ calculated to allow the rotation in a clockwise direction of the distal portion 8 relative to the proximal portion 6 (in accordance with the figures, c ' that is distal portion 8 oriented to the right and proximal portion 6 oriented to the left).
  • a violent shock applied to the opening 2 causes the clockwise rotation of the distal portion 8 with respect to the proximal portion 6, which also makes it possible to move the end 12 of the distal portion 8 out of the lower portion of the light 16 in which it was originally housed.
  • the angle ⁇ may advantageously be between 135 ° and 180 °.
  • FIGS. 3 to 14 illustrate several embodiments of the arm 1 stay, which differ in the stabilization means used.
  • the stabilizing means comprise means for latching the portion 6 and the distal portion 8 adapted to snap the proximal portion 6 and the distal portion 8 extended deployed position ( figure 3 ) and for disengaging the proximal portion 6 and the distal portion 8 when the arm experiences a force greater than the predetermined threshold value ( figure 5 ).
  • the detent means comprise at least one flexible member adapted for engaging or disengaging a stud 24 in a mortise 26.
  • the detent means comprise two flexible members corresponding to an end 22 of the distal portion. 8 and an end 28 of the proximal portion 6.
  • the pin 24 is secured to the end 22, and the mortise 26 is formed on the end 28 of the proximal portion 6.
  • the drawing from the top of the figure 4 shows the stud 24 inserted into the mortise 26.
  • the proximal portion 6 and the distal portion 8 are held in extended deployed position.
  • the insertion of the stud 24 into the mortise 26 opposes any rotation of the proximal portion 6 and the distal portion 8.
  • the drawing of the middle of the figure 4 shows the deformation of the end 22 and the end 28 immediately following a force incurred by the arm 1 stayout exceeding the predetermined threshold value.
  • the stud 24 has left the mortise 26 to allow rotation of the distal portion 8 relative to the proximal portion about the axis 20.
  • the drawing of the bottom of the figure 4 shows the ends 22, 28 returned to their original state before their deformation, after the post 24 has left the mortise 26.
  • the post 24 and the mortise 26 are no longer engaged; the stabilization means are no longer opposed to the rotation of the distal portion 8 relative to the proximal portion 6 to the retracted exceptional position.
  • the flexible members, here the ends 22, 28, the pin 24 and the mortise 26 are shaped and / or dimensioned to allow removal of the pin 24 of the mortise 26 only when the opening 2 undergoes a thrust force greater than the value predetermined threshold.
  • the stabilizing means comprise resilient return means, such as a spring 30, connecting the distal portion 8 and the proximal portion 6 and tending to maintain the distal portion 8 and the proximal portion 6 extended deployed position.
  • the spring 30 is advantageously sized to generate a restoring force preventing rotation of the distal portion 8 and the proximal portion 6 about the axis 20 as long as the torque exerted on the axis 20 is less than or equal to the threshold value. predetermined and allowing rotation of the distal portion 8 and the proximal portion 6 about the axis 20 as soon as the torque exerted on the axis 20 is greater than the predetermined threshold value.
  • the spring 30 may correspond to a compression spring; it comprises here an end 31 attached to the proximal portion 6 and another end 33 attached to the distal portion 8.
  • the spring 30 may correspond to a torsion spring.
  • the spring 30 here comprises a branch 32 bearing against a lug 34 fixed on the proximal portion 6 and a leg 36 bearing against a lug 38 fixed on the distal portion 8.
  • the spring 30 is here arranged so that the axis 20 extends into the space delimited by its turns.
  • the stabilizing means comprise means for friction of the distal portion 8 and the proximal portion 6.
  • the friction means here comprise a first functional surface 40 arranged on the proximal portion 6 to bear against a second functional surface 42 arranged on the distal portion 8.
  • the first functional surface 40 and the second functional surface 42 are advantageously sized to generate friction forces (in the hatched area on the Figures 10 and 11 ) preventing rotation of the distal portion 8 and the proximal portion 6 about the axis 20 as long as the torque exerted on the axis 20 is less than or equal to the predetermined threshold value and allowing rotation of the distal portion 8 and of the proximal portion 6 about the axis 20 as soon as the torque exerted on the axis 20 is greater than the predetermined threshold value.
  • the stabilization means are reversible, that is to say they are able to allow the return of the proximal portion 6 and the distal portion 8 in a deployed extended position and to maintain again the proximal portion 6 and the distal portion 8 in the extended perennial position, in the case where the proximal portion 6 and the distal portion 8 have been moved to the retracted exceptional position.
  • the stay arm 1 can again fulfill its function of stay, that is to say maintain the opening 2 in the predetermined open position if necessary.
  • the stabilizing means comprise a connecting member, for example an axis 44, connecting both the distal portion 8 and the proximal portion 6.
  • the axis 44 immobilizes the proximal portion 6 and the distal portion 8 in the perennial position deployed by preventing the rotation of one relative to the other.
  • the axis 44 is however intended to break as soon as the thrust force on the arm 1 stay exceeds the predetermined threshold value, to release the rotation of the proximal portion 6 and the distal portion 8 relative to the other towards the exceptional position retracted.
  • the drawing from the top of the figure 14 shows the axis 44 connecting the proximal portion 6 and the distal portion 8 substantially immobile with respect to each other in the extended deployed position.
  • the axis 44 forms irreversible stabilization means; it does not allow to stabilize again the proximal portion 6 and the distal portion in a perennial position deployed after being broken.
  • the left arm can no longer function as a crack; however, it provides a function of opening limiter.
  • the subject of the invention is also a window or a door (not shown) comprising an opening 2, a frame 4, and a stay arm 1 according to one of the embodiments illustrated in FIGS. Figures 3 to 5 .
  • the frame 4 may correspond to a frame embedded in a bay, or to an opening or leaf said semi-fixed, that is to say able to be kept locked in a closed position while the opening 2 is in opening position.
  • stay arm 1 The operation of the stay arm 1 is described in more detail below, starting from an initial state in which the proximal portion 6 and the distal portion 8 are in the extended deployed position, as shown in FIGS. figures 1 , 3 , 6 , 8 , 10 and 12 .
  • the stabilization means are adapted to consequently maintain the proximal portion 6 and the distal portion 8 in the extended perennial position.
  • the stabilization means allow the displacement of the proximal portion 6 and the distal portion 8. one compared to the other, since the perennial position deployed to the exceptional position retracted, as is visible on the figures 2 , 5 , 7 , 9 , 11 and 13 .
  • the proximal portion 6 and the distal portion 8 allow the opening 2 to approach the frame 4.
  • the opening 2 can thus bear against the frame 4 to absorb a shock.
  • the oblique arrangement of the proximal portion 6 and the distal portion 8 deployed in the extended position causes the clockwise rotation of the distal portion 8 relative to the proximal portion 6 to raise the stud 14 attached to the end 12 in the light 16.
  • the arm 1 can then either continue to provide a cracking function, as before the shock, or provide a function of opening limiter.
  • proximal portion 6 and the distal portion 8 may be movable in translation relative to each other between the extended perennial position and the retracted exceptional position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Pivots And Pivotal Connections (AREA)

Description

La présente invention concerne un bras entrebâilleur et une fenêtre ou une porte équipée de ce bras entrebâilleur.The present invention relates to a scissor arm and a window or a door equipped with the scissor arm.

Une fenêtre ou une porte comprend traditionnellement un dormant monté dans une baie et au moins un ouvrant monté mobile en rotation sur le dormant, entre une position d'ouverture dans laquelle l'ouvrant libère un passage à travers le dormant et une position de fermeture dans laquelle l'ouvrant obture ce passage.A window or door traditionally comprises a frame mounted in a bay and at least one opening rotatably mounted on the frame, between an open position in which the opening releases a passage through the frame and a closed position in which opening closes this passage.

Il est connu d'équiper les fenêtres ou portes avec un bras entrebâilleur. Le bras entrebâilleur est relié au dormant et à l'ouvrant. Il permet de maintenir l'ouvrant dans une position ouverte prédéterminée.It is known to equip the windows or doors with a left arm. The left arm is connected to the frame and the opening. It keeps the opening in a predetermined open position.

Cependant, les chocs subis par les fenêtres ou portes connues sont directement transmis au bras entrebâilleur, qui peut se briser. L'ouvrant n'est plus maintenu par le bras entrebâilleur et peut donc être librement déplacé. Il en résulte, outre des dégâts matériels, une baisse sensible du niveau de sécurité dans la mesure où le bras entrebâilleur ne remplit ni sa fonction de maintien de l'ouvrant dans sa position ouverte prédéterminée, ni une fonction de limiteur d'ouverture.However, shocks to known windows or doors are directly transmitted to the left arm, which can break. The opening is no longer maintained by the left arm and can be moved freely. This results, in addition to material damage, a significant decrease in the level of safety insofar as the stay arm does not fulfill its function of maintaining the opening in its predetermined open position, nor a function of opening limiter.

Il est par exemple connu du document de brevet GB577379 un compas pour une porte. Cependant, le compas est relié à chacune de ses extrémités par une liaison pivot, soit à une porte, soit au cadre de porte. Même si le compas plie lorsque la porte est rabattue contre le cadre de porte, les extrémités du compas sont soumises à des contraintes mécaniques susceptibles de les endommager en cas de rabattement violent de la porte contre le cadre de porte.It is for example known from the patent document GB577379 a compass for a door. However, the compass is connected at each of its ends by a pivot connection, either to a door or to the door frame. Even if the compass bends when the door is folded against the door frame, the ends of the compass are subjected to mechanical stresses likely to damage them in case of violent folding of the door against the door frame.

Il est par ailleurs connu du document EP0649965 un piston de verrouillage à ressort, et du document DE8700118 un bras pour un cadre d'ouvrant. Aussi la présente invention vise à pallier tout ou partie de ces inconvénients en proposant un bras entrebâilleur offrant un niveau de sécurité élevé, y compris après un choc violent, et une fenêtre ou une porte équipée de ce bras entrebâilleur.It is also known from the document EP0649965 a spring lock piston, and document DE8700118 an arm for an opening frame. Also the present invention aims to overcome all or part of these disadvantages by providing a guardrail arm offering a high level of security, including after a violent impact, and a window or a door equipped with this arm stay.

A cet effet, la présente invention a pour objet un bras entrebâilleur selon la revendication 1. Ainsi, le bras entrebâilleur selon l'invention offre la possibilité de supporter des chocs violents sans se rompre, si bien qu'il continue d'assurer après un choc violent sa fonction d'entrebâillement, ou à défaut au moins une fonction de limiteur d'ouverture.For this purpose, the subject of the present invention is a scissor arm according to claim 1. Thus, the scissor arm according to the invention offers the possibility of withstanding violent shocks without breaking, so that it continues to ensure after a violent shock its cracking function, or at least one limiter function d 'opening.

Par position pérenne déployée on entend position correspondant à une position normale d'utilisation dans laquelle le bras autorise le déplacement de l'ouvrant par rapport au dormant entre la position d'ouverture prédéterminée et la position de fermeture, et dans laquelle le bras est notamment apte à maintenir l'ouvrant dans la position ouverte prédéterminée.By extended perennial position is meant position corresponding to a normal use position in which the arm allows the movement of the opening relative to the frame between the predetermined open position and the closed position, and wherein the arm is particularly adapted to maintain the opening in the predetermined open position.

Par position exceptionnelle escamotée on entend position atteinte dans des situations rares de fonctionnement correspondant à des situations d'urgence, par exemple suite à un choc violent, dans laquelle la distance séparant une extrémité de la portion proximale destinée à être reliée au dormant et une extrémité de la portion distale destinée à être reliée à l'ouvrant est minimale.By retracted exceptional position is meant position reached in rare situations of operation corresponding to emergency situations, for example following a violent shock, wherein the distance separating one end of the proximal portion intended to be connected to the frame and one end the distal portion intended to be connected to the opening is minimal.

Les efforts transmis au bras à la suite de chocs minimes sont encaissés directement par le bras s'il peut y résister ; le cas échéant, la portion proximale et la portion distale sont maintenues sensiblement immobiles l'une par rapport à l'autre par les moyens de stabilisation. Les efforts transmis au bras à la suite d'un choc violent contre l'ouvrant sont encaissés par le dormant, contre lequel vient se plaquer l'ouvrant à la suite du choc. Le cas échéant, la portion proximale et la portion distale s'articulent pour préserver l'intégrité physique du bras et pour que l'ouvrant puisse venir en appui contre le dormant.Efforts transmitted to the arm as a result of minor shocks are cashed directly by the arm if it can resist; if necessary, the proximal portion and the distal portion are kept substantially immobile relative to each other by the stabilizing means. The forces transmitted to the arm as a result of a violent shock against the opening are cashed by the frame, against which is pressed the opening after the shock. Where appropriate, the proximal portion and the distal portion articulate to preserve the physical integrity of the arm and that the opening can bear against the frame.

En outre, la portion proximale et la portion distale sont mobiles en rotation l'une par rapport à l'autre. Cette caractéristique permet de créer des composantes tangentielles de l'effort de poussée sur le bras pour provoquer le déplacement d'une extrémité de la portion distale à laquelle est rattaché un plot monté coulissant dans une lumière de l'ouvrant. Ainsi, le plot se déplace dans la lumière pour ne pas contraindre le bras. Ce degré de liberté supplémentaire correspondant au déplacement en translation du plot dans la lumière diminue sensiblement les contraintes subies par le bras en comparaison des solutions préexistantes.In addition, the proximal portion and the distal portion are rotatable relative to each other. This feature makes it possible to create tangential components of the thrust force on the arm to cause the displacement of an end of the distal portion to which is attached a stud mounted sliding in a light of the opening. Thus, the stud moves in the light so as not to constrain the arm. This additional degree of freedom corresponding to the translation displacement of the stud in the light substantially reduces the stresses to which the arm is subjected in comparison with the pre-existing solutions.

De manière avantageuse, la portion proximale et la portion distale en position pérenne déployée forment entre elles un angle α calculé pour permettre la rotation dans un sens horaire de la portion distale par rapport à la portion proximale.Advantageously, the proximal portion and the distal portion in extended deployed position form between them an angle α calculated to allow rotation in a clockwise direction of the distal portion relative to the proximal portion.

Cela entraîne avantageusement le soulèvement de l'extrémité de la portion distale à laquelle est rattaché le plot monté coulissant dans la lumière de l'ouvrant.This advantageously causes the lifting of the end of the distal portion to which is attached the stud mounted sliding in the opening of the opening.

Selon une forme d'exécution, l'angle α est compris entre 135° et à 180° lorsque la portion proximale et la portion distale sont en position déployée.According to one embodiment, the angle α is between 135 ° and 180 ° when the proximal portion and the distal portion are in the deployed position.

Selon l'invention les moyens de stabilisation comprennent des moyens d'encliquetage de la portion proximale et de la portion distale adaptés pour l'encliquetage de la portion proximale et de la portion distale en position pérenne déployée.According to the invention the stabilization means comprise snap-fastening means of the proximal portion and of the distal portion adapted for snapping the proximal portion and the distal portion in the deployed extended position.

Les moyens d'encliquetage comprennent au moins un organe flexible adapté pour l'engagement ou le désengagement d'un tenon dans une mortaise.The latching means comprise at least one flexible member adapted for engagement or disengagement of a tenon in a mortise.

Selon une possibilité non comprise dans l'invention, les moyens de stabilisation comprennent des moyens de rappel élastiques reliant la portion distale et la portion proximale et tendant à maintenir la portion distale et la portion proximale en position pérenne déployée.According to a possibility not included in the invention, the stabilizing means comprise elastic return means connecting the distal portion and the proximal portion and tending to maintain the distal portion and the proximal portion in extended deployed position.

De manière avantageuse, les moyens de rappel élastiques comprennent un ressort dont une extrémité est rattachée à la portion proximale et dont une autre extrémité est rattachée à la portion distale.Advantageously, the elastic return means comprise a spring whose one end is attached to the proximal portion and whose other end is attached to the distal portion.

Le ressort est avantageusement dimensionné pour générer une force de rappel empêchant la rotation de la portion distale et de la portion proximale autour de l'axe tant que le couple exercé sur l'axe est inférieur ou égal à la valeur seuil prédéterminée et autorisant la rotation de la portion distale et de la portion proximale autour de l'axe dès que le couple exercé sur l'axe est supérieur à la valeur seuil prédéterminée.The spring is advantageously dimensioned to generate a restoring force preventing rotation of the distal portion and the proximal portion about the axis as long as the torque exerted on the axis is less than or equal to the predetermined threshold value and allowing the rotation portion distal and the proximal portion about the axis as soon as the torque exerted on the axis is greater than the predetermined threshold value.

Le ressort peut correspondre à un ressort de compression ou à un ressort de torsion.The spring may be a compression spring or a torsion spring.

Selon un mode de réalisation non compris dans l'invention, les moyens de stabilisation comprennent des moyens de frottement de la portion distale et de la portion proximale adaptés pour générer des forces de frottement s'opposant au déplacement de la portion distale par rapport à la portion proximale.According to an embodiment not included in the invention, the stabilization means comprise means for friction of the distal portion and of the proximal portion adapted to generate friction forces opposing the displacement of the distal portion relative to the proximal portion.

Avantageusement, les moyens de frottement comprennent une première surface fonctionnelle agencée sur la portion proximale pour venir en appui contre une deuxième surface fonctionnelle agencée sur la portion distale.Advantageously, the friction means comprise a first functional surface arranged on the proximal portion to bear against a second functional surface arranged on the distal portion.

La première surface fonctionnelle et la deuxième surface fonctionnelle sont avantageusement dimensionnées pour générer une friction empêchant la rotation de la portion distale et de la portion proximale autour de l'axe tant que le couple exercé sur l'axe est inférieur ou égal à la valeur seuil prédéterminée et autorisant la rotation de la portion distale et de la portion proximale autour de l'axe dès que le couple exercé sur l'axe est supérieur à la valeur seuil prédéterminée.The first functional surface and the second functional surface are advantageously dimensioned to generate a friction preventing rotation of the distal portion and the proximal portion about the axis as long as the torque exerted on the axis is less than or equal to the threshold value. predetermined and allowing rotation of the distal portion and the proximal portion about the axis as soon as the torque exerted on the axis is greater than the predetermined threshold value.

De manière avantageuse, les moyens de stabilisation sont réversibles.Advantageously, the stabilizing means are reversible.

Autrement dit, les moyens de stabilisation sont adaptés pour maintenir de nouveau la portion proximale et la portion distale dans une position déployée après un choc ayant entraîné la rotation de la portion proximale et de la portion distale autour de l'axe. Le bras peut ainsi remplir de nouveau sa fonction d'entrebâillement.In other words, the stabilizing means are adapted to maintain again the proximal portion and the distal portion in an extended position after an impact having caused rotation of the proximal portion and the distal portion about the axis. The arm can thus fill again its function of cracking.

Selon une variante non comprise dans l'invention, les moyens de stabilisation comprennent un organe de liaison solidaire de la portion distale et de la portion proximale, l'organe de liaison étant destiné à rompre dès que l'effort de poussée sur le bras dépasse la valeur seuil prédéterminée.According to a variant not included in the invention, the stabilization means comprise a connecting member integral with the distal portion and the proximal portion, the connecting member being intended to break as soon as the thrust force on the arm exceeds the predetermined threshold value.

Dans ce cas, le bras ne peut pas assurer de nouveau une fonction d'entrebâillement ; il permet d'assurer cependant une fonction de limiteur d'ouverture pour conserver un niveau de sécurité élevé.In this case, the arm can not provide a cracking function again; however, it provides an opening limiter function to maintain a high level of security.

Selon un autre aspect de l'invention, celle-ci a également pour objet une fenêtre ou une porte comprenant un ouvrant, un dormant, et un bras entrebâilleur ayant les caractéristiques précitées.According to another aspect of the invention, it also relates to a window or a door comprising an opening, a frame, and a door arm having the above characteristics.

On notera que le dormant peut aussi bien correspondre à un bâti fixé dans une baie qu'à un ouvrant ou vantail qui est maintenu verrouillé dans une position fermée (on peut alors aussi parler de vantail ou ouvrant semi-fixe).It should be noted that the frame can also correspond to a frame fixed in a bay to an opening or leaf which is kept locked in a closed position (one can also also speak of leaf or opening semi-fixed).

D'autres caractéristiques et avantages de la présente invention ressortiront clairement de la description ci-après de modes de réalisation de l'invention, donnés à titre d'exemples non limitatifs, en référence aux dessins annexés dans lesquels :

  • les figures 1 et 2 sont des vues schématiques de profil d'un bras selon un mode de réalisation de l'invention, dans deux positions de fonctionnement,
  • les figures 3 et 5 sont des vues schématiques de profil d'un bras selon un mode particulier de réalisation de l'invention, dans deux positions de fonctionnement,
  • la figure 4 est une vue schématique et de dessus d'une partie d'un bras selon le mode particulier de réalisation des figures 3 et 5, dans différentes positions de fonctionnement,
  • les figures 6 et 7 sont des vues schématiques de profil d'un bras* non compris dans l'invention, dans deux positions de fonctionnement,
  • les figures 8 et 9 sont des vues schématiques de profil d'un bras non compris dans l'invention, dans deux positions de fonctionnement,
  • les figures 10 et 11 sont des vues schématiques de profil d'un bras non compris dans l'invention, dans deux positions de fonctionnement,
  • les figures 12 et 13 sont des vues schématiques de profil d'un bras non compris dans l'invention, dans deux positions de fonctionnement,
  • la figure 14 est une vue schématique et de dessus d'une partie d'un bras non compris dans l'invention des figures 12 et 13, dans différentes positions de fonctionnement.
Other characteristics and advantages of the present invention will emerge clearly from the following description of embodiments of the invention, given by way of non-limiting examples, with reference to the appended drawings in which:
  • the Figures 1 and 2 are schematic profile views of an arm according to one embodiment of the invention, in two operating positions,
  • the Figures 3 and 5 are schematic profile views of an arm according to a particular embodiment of the invention, in two operating positions,
  • the figure 4 is a schematic view from above of a part of an arm according to the particular embodiment of Figures 3 and 5 , in different operating positions,
  • the Figures 6 and 7 are schematic views of the profile of an arm * not included in the invention, in two operating positions,
  • the Figures 8 and 9 are schematic views of the profile of an arm not included in the invention, in two operating positions,
  • the Figures 10 and 11 are schematic views of the profile of an arm not included in the invention, in two operating positions,
  • the Figures 12 and 13 are schematic views of the profile of an arm not included in the invention, in two operating positions,
  • the figure 14 is a schematic view from above of a part of an arm not included in the invention of Figures 12 and 13 , in different operating positions.

Les figures 1 et 2 montrent de façon schématique un bras 1 entrebâilleur selon un mode de réalisation de l'invention.The Figures 1 and 2 show schematically an arm 1 stayer according to one embodiment of the invention.

Le bras 1 entrebâilleur est destiné à maintenir un ouvrant 2 dans une position ouverte prédéterminée par rapport à un dormant 4, comme illustré à la figure 1. A la différence d'un bras entrebâilleur, un bras limiteur d'ouverture offre uniquement la possibilité de limiter l'ouverture de l'ouvrant jusqu'à une position d'ouverture prédéterminée, mais n'offre pas la possibilité de maintenir l'ouvrant dans cette position d'ouverture prédéterminée. L'ouvrant 2 et le dormant 4 sont ici partiellement représentés.The arm 1 stay is intended to maintain an opening 2 in a predetermined open position relative to a frame 4, as shown in FIG. figure 1 . Unlike a stop arm, an opening limiting arm only offers the possibility of limiting the opening of the opening to a predetermined opening position, but does not offer the possibility of maintaining the opening in this predetermined opening position. The opening 2 and the frame 4 are here partially represented.

Le bras 1 entrebâilleur comprend ici une portion proximale 6 et une portion distale 8. La portion proximale 6 comprend une extrémité 10 destinée à être reliée au dormant 4. La portion distale 8 comprend une extrémité 12 destinée à être reliée à l'ouvrant 2.The stay 1 arm here comprises a proximal portion 6 and a distal portion 8. The proximal portion 6 comprises an end 10 intended to be connected to the frame 4. The distal portion 8 comprises an end 12 intended to be connected to the opening 2.

Dans l'exemple des figures 1 et 2, l'extrémité 12 de la portion distale 8 est rattachée à un plot 14 monté coulissant dans une lumière 16. La lumière 16 peut correspondre à une lumière ménagée dans une têtière 18, par exemple d'un verrou (non représenté) destiné au verrouillage en position de fermeture de l'ouvrant 2, la têtière 18 étant rattachée à l'ouvrant 2.In the example of Figures 1 and 2 , the end 12 of the distal portion 8 is attached to a stud 14 slidably mounted in a lumen 16. The lumen 16 may correspond to a lumen formed in a headrest 18, for example a latch (not shown) for locking in the closed position of the opening 2, the headrest 18 being attached to the opening 2.

Le bras 1 entrebâilleur comprend des moyens de liaison agencés pour relier la portion proximale 6 et la portion distale 8. Les moyens de liaison autorisent un déplacement relatif de la portion proximale 6 et de la portion distale 8 l'une par rapport à l'autre. Dans les exemples des figures 1 à 14, les moyens de liaison comprennent ici un axe 20 de rotation autour duquel sont articulées la portion proximale 6 et la portion distale 8.The stay arm 1 comprises connecting means arranged to connect the proximal portion 6 and the distal portion 8. The connecting means allow a relative displacement of the proximal portion 6 and the distal portion 8 relative to each other . In the examples of Figures 1 to 14 , the connecting means here comprise an axis of rotation around which are articulated the proximal portion 6 and the distal portion 8.

La portion proximale 6 et la portion distale 8 sont mobiles (ici en rotation) entre une position pérenne déployée, visible sur les figures 1, 3, 6, 8, 10 et 12, et une position exceptionnelle escamotée (non représentée). Les figures 2, 5, 7, 9, 11 et 13 montrent la portion proximale 6 et la portion distale 8 dans une position intermédiaire comprise entre la position pérenne déployée et la position exceptionnelle escamotée.The proximal portion 6 and the distal portion 8 are movable (here in rotation) between an extended perennial position, visible on the figures 1 , 3 , 6 , 8 , 10 and 12 , and an exceptional retracted position (not shown). The figures 2 , 5 , 7 , 9 , 11 and 13 show the proximal portion 6 and the distal portion 8 in an intermediate position between the extended perennial position and the retracted exceptional position.

Le bras 1 entrebâilleur comprend également des moyens de stabilisation, décrits plus en détails ci-après, agencés pour maintenir la portion proximale 6 et la portion distale 8 en position pérenne déployée tant qu'un effort de poussée sur le bras 1 entrebâilleur est inférieur ou égal à une valeur seuil prédéterminée, et pour autoriser le déplacement relatif de la portion distale 8 et de la portion proximale 6 jusqu'à la position exceptionnelle escamotée dès que l'effort de poussée sur le bras 1 entrebâilleur excède la valeur seuil prédéterminée.The stay arm 1 also comprises stabilization means, described in more detail below, arranged to maintain the proximal portion 6 and the distal portion 8 in extended perennial position as long as a thrust force on the arm 1 stay is lower or equal to a predetermined threshold value, and to allow the relative displacement of the distal portion 8 and the proximal portion 6 to the retracted exceptional position as soon as the thrust force on the arm 1 stay exceeds the predetermined threshold value.

En d'autres termes, conformément aux exemples de réalisation illustrés aux figures 1 à 13, les moyens de stabilisation empêchent, lorsque la portion proximale 6 et la portion distale 8 sont en position pérenne déployée, la rotation relative de la portion proximale 6 et de la portion distale 8 tant qu'un couple au niveau de l'axe 20 est inférieur ou égal à une valeur seuil prédéterminée, mais autorisent cette rotation (uniquement) lorsque le couple au niveau de l'axe 20 est supérieur à la valeur seuil prédéterminée.In other words, in accordance with the exemplary embodiments illustrated in FIGS. Figures 1 to 13 , the stabilization means prevent, when the proximal portion 6 and the distal portion 8 are in extended deployed position, the relative rotation of the proximal portion 6 and the distal portion 8 as a torque at the axis 20 is less than or equal to a predetermined threshold value, but allow this rotation (only) when the torque at the axis 20 is greater than the predetermined threshold value.

La valeur seuil prédéterminée est calculée pour prévenir la rupture du bras 1 entrebâilleur. Ainsi, lorsque le bras 1 entrebâilleur subit un effort inférieur ou égal à la valeur seuil prédéterminée, le bras 1 entrebâilleur est apte à résister sans se briser aux contraintes mécaniques générées par cet effort. En revanche, lorsque l'effort excède la valeur seuil prédéterminée, cela signifie que le bras 1 entrebâilleur pourrait se briser ; aussi, les moyens de stabilisation autorisent dans ce cas la rotation de la portion proximale 6 et de la portion distale 8.The predetermined threshold value is calculated to prevent breakage of the arm 1 stay. Thus, when the stay arm 1 undergoes a force less than or equal to the predetermined threshold value, the arm 1 stay is able to withstand without breaking the mechanical stresses generated by this effort. On the other hand, when the force exceeds the predetermined threshold value, it means that the arm 1 stay could break; also, the stabilization means allow in this case the rotation of the proximal portion 6 and the distal portion 8.

Comme cela est visible sur les figures 3, 6, 8, 10 et 12, représentant la portion proximale 6 et la portion distale 8 dans la position pérenne déployée, la portion proximale 6 et la portion distale 8 peuvent être agencées de manière sensiblement oblique l'une par rapport à l'autre, et non nécessairement alignées de manière parfaitement rectiligne comme cela est représenté sur la figure 1.As is visible on the figures 3 , 6 , 8 , 10 and 12 , representing the proximal portion 6 and the distal portion 8 in the extended perennial position, the proximal portion 6 and the distal portion 8 may be arranged substantially obliquely relative to each other, and not necessarily aligned perfectly rectilinear as shown on the figure 1 .

En particulier, la portion proximale 6 et la portion distale 8 en position pérenne déployée forment entre elles un angle α calculé pour permettre la rotation dans un sens horaire de la portion distale 8 par rapport à la portion proximale 6 (conformément aux figures, c'est-à-dire portion distale 8 orientée vers la droite et portion proximale 6 orientée vers la gauche). Ainsi, un choc violent appliqué sur l'ouvrant 2 provoque la rotation horaire de la portion distale 8 par rapport à la portion proximale 6, ce qui permet aussi de déplacer l'extrémité 12 de la portion distale 8 hors de la portion inférieure de la lumière 16 dans laquelle elle était initialement logée. L'angle α peut être avantageusement compris entre 135° et 180°.In particular, the proximal portion 6 and the distal portion 8 deployed in extended position form between them an angle α calculated to allow the rotation in a clockwise direction of the distal portion 8 relative to the proximal portion 6 (in accordance with the figures, c ' that is distal portion 8 oriented to the right and proximal portion 6 oriented to the left). Thus, a violent shock applied to the opening 2 causes the clockwise rotation of the distal portion 8 with respect to the proximal portion 6, which also makes it possible to move the end 12 of the distal portion 8 out of the lower portion of the light 16 in which it was originally housed. The angle α may advantageously be between 135 ° and 180 °.

Les figures 3 à 14 illustrent plusieurs modes de réalisation du bras 1 entrebâilleur, qui diffèrent au niveau des moyens de stabilisation utilisés.The Figures 3 to 14 illustrate several embodiments of the arm 1 stay, which differ in the stabilization means used.

Dans le mode de réalisation illustré aux figures 3 à 5, les moyens de stabilisation comprennent des moyens d'encliquetage de la portion proximale 6 et de la portion distale 8 adaptés pour l'encliquetage de la portion proximale 6 et de la portion distale 8 en position pérenne déployée (figure 3) et pour le désencliquetage de la portion proximale 6 et de la portion distale 8 lorsque le bras subit un effort supérieur à la valeur seuil prédéterminée (figure 5).In the embodiment illustrated in Figures 3 to 5 the stabilizing means comprise means for latching the portion 6 and the distal portion 8 adapted to snap the proximal portion 6 and the distal portion 8 extended deployed position ( figure 3 ) and for disengaging the proximal portion 6 and the distal portion 8 when the arm experiences a force greater than the predetermined threshold value ( figure 5 ).

Comme cela est visible sur la figure 4, les moyens d'encliquetage comprennent au moins un organe flexible adapté pour l'engagement ou le désengagement d'un tenon 24 dans une mortaise 26. Ici, les moyens d'encliquetage comprennent deux organes flexibles correspondant à une extrémité 22 de la portion distale 8 et une extrémité 28 de la portion proximale 6. De plus, le tenon 24 est solidaire de l'extrémité 22, et la mortaise 26 est ménagée sur l'extrémité 28 de la portion proximale 6.As is visible on the figure 4 , the detent means comprise at least one flexible member adapted for engaging or disengaging a stud 24 in a mortise 26. Here, the detent means comprise two flexible members corresponding to an end 22 of the distal portion. 8 and an end 28 of the proximal portion 6. In addition, the pin 24 is secured to the end 22, and the mortise 26 is formed on the end 28 of the proximal portion 6.

Le dessin du haut de la figure 4 montre le tenon 24 inséré dans la mortaise 26. Ainsi, la portion proximale 6 et la portion distale 8 sont maintenues en position pérenne déployée. L'insertion du tenon 24 dans la mortaise 26 s'oppose à toute rotation de la portion proximale 6 et de la portion distale 8.The drawing from the top of the figure 4 shows the stud 24 inserted into the mortise 26. Thus, the proximal portion 6 and the distal portion 8 are held in extended deployed position. The insertion of the stud 24 into the mortise 26 opposes any rotation of the proximal portion 6 and the distal portion 8.

Le dessin du milieu de la figure 4 montre la déformation de l'extrémité 22 et de l'extrémité 28 faisant immédiatement suite à un effort subi par le bras 1 entrebâilleur dépassant la valeur seuil prédéterminée. Le tenon 24 a quitté la mortaise 26 pour permettre la rotation de la portion distale 8 par rapport à la portion proximale autour de l'axe 20.The drawing of the middle of the figure 4 shows the deformation of the end 22 and the end 28 immediately following a force incurred by the arm 1 stayout exceeding the predetermined threshold value. The stud 24 has left the mortise 26 to allow rotation of the distal portion 8 relative to the proximal portion about the axis 20.

Le dessin du bas de la figure 4 montre les extrémités 22, 28 revenues à leur état initial précédant leur déformation, après que le tenon 24 ait quitté la mortaise 26. Le tenon 24 et la mortaise 26 ne sont plus engagés ; les moyens de stabilisation ne s'opposent plus à la rotation de la portion distale 8 par rapport à la portion proximale 6 jusqu'à la position exceptionnelle escamotée.The drawing of the bottom of the figure 4 shows the ends 22, 28 returned to their original state before their deformation, after the post 24 has left the mortise 26. The post 24 and the mortise 26 are no longer engaged; the stabilization means are no longer opposed to the rotation of the distal portion 8 relative to the proximal portion 6 to the retracted exceptional position.

Les organes flexibles, ici les extrémités 22, 28, le tenon 24 et la mortaise 26 sont conformés et/ou dimensionnés pour autoriser le retrait du tenon 24 de la mortaise 26 uniquement lorsque l'ouvrant 2 subit un effort de poussée supérieur à la valeur seuil prédéterminée.The flexible members, here the ends 22, 28, the pin 24 and the mortise 26 are shaped and / or dimensioned to allow removal of the pin 24 of the mortise 26 only when the opening 2 undergoes a thrust force greater than the value predetermined threshold.

Dans le mode de réalisation non compris dans l'invention illustré aux figures 6 à 9, les moyens de stabilisation comprennent des moyens de rappel élastiques, comme un ressort 30, reliant la portion distale 8 et la portion proximale 6 et tendant à maintenir la portion distale 8 et la portion proximale 6 en position pérenne déployée.In the embodiment not included in the invention illustrated in the Figures 6 to 9 , the stabilizing means comprise resilient return means, such as a spring 30, connecting the distal portion 8 and the proximal portion 6 and tending to maintain the distal portion 8 and the proximal portion 6 extended deployed position.

Le ressort 30 est avantageusement dimensionné pour générer une force de rappel empêchant la rotation de la portion distale 8 et de la portion proximale 6 autour de l'axe 20 tant que le couple exercé sur l'axe 20 est inférieur ou égal à la valeur seuil prédéterminée et autorisant la rotation de la portion distale 8 et de la portion proximale 6 autour de l'axe 20 dès que le couple exercé sur l'axe 20 est supérieur à la valeur seuil prédéterminée.The spring 30 is advantageously sized to generate a restoring force preventing rotation of the distal portion 8 and the proximal portion 6 about the axis 20 as long as the torque exerted on the axis 20 is less than or equal to the threshold value. predetermined and allowing rotation of the distal portion 8 and the proximal portion 6 about the axis 20 as soon as the torque exerted on the axis 20 is greater than the predetermined threshold value.

Comme cela est représenté sur les figures 6 et 7, le ressort 30 peut correspondre à un ressort de compression ; il comprend ici une extrémité 31 rattachée à la portion proximale 6 et une autre extrémité 33 rattachée à la portion distale 8.As shown on the Figures 6 and 7 the spring 30 may correspond to a compression spring; it comprises here an end 31 attached to the proximal portion 6 and another end 33 attached to the distal portion 8.

Comme cela est représenté sur les figures 8 et 9, le ressort 30 peut correspondre à un ressort de torsion. Le ressort 30 comprend ici une branche 32 en appui contre un ergot 34 fixé sur la portion proximale 6 et une branche 36 en appui contre un ergot 38 fixé sur la portion distale 8. Le ressort 30 est ici agencé de sorte que l'axe 20 s'étende dans l'espace délimité par ses spires.As shown on the Figures 8 and 9 , the spring 30 may correspond to a torsion spring. The spring 30 here comprises a branch 32 bearing against a lug 34 fixed on the proximal portion 6 and a leg 36 bearing against a lug 38 fixed on the distal portion 8. The spring 30 is here arranged so that the axis 20 extends into the space delimited by its turns.

Dans le mode de réalisation non compris dans l'invention illustré aux figures 10 et 11, les moyens de stabilisation comprennent des moyens de frottement de la portion distale 8 et de la portion proximale 6.In the embodiment not included in the invention illustrated in the Figures 10 and 11 the stabilizing means comprise means for friction of the distal portion 8 and the proximal portion 6.

Les moyens de frottement comprennent ici une première surface fonctionnelle 40 agencée sur la portion proximale 6 pour venir en appui contre une deuxième surface 42 fonctionnelle agencée sur la portion distale 8.The friction means here comprise a first functional surface 40 arranged on the proximal portion 6 to bear against a second functional surface 42 arranged on the distal portion 8.

La première surface fonctionnelle 40 et la deuxième surface fonctionnelle 42 sont avantageusement dimensionnées pour générer des forces de frottement (dans la zone hachurée sur les figures 10 et 11) empêchant la rotation de la portion distale 8 et de la portion proximale 6 autour de l'axe 20 tant que le couple exercé sur l'axe 20 est inférieur ou égal à la valeur seuil prédéterminée et autorisant la rotation de la portion distale 8 et de la portion proximale 6 autour de l'axe 20 dès que le couple exercé sur l'axe 20 est supérieur à la valeur seuil prédéterminée.The first functional surface 40 and the second functional surface 42 are advantageously sized to generate friction forces (in the hatched area on the Figures 10 and 11 ) preventing rotation of the distal portion 8 and the proximal portion 6 about the axis 20 as long as the torque exerted on the axis 20 is less than or equal to the predetermined threshold value and allowing rotation of the distal portion 8 and of the proximal portion 6 about the axis 20 as soon as the torque exerted on the axis 20 is greater than the predetermined threshold value.

Selon les modes de réalisation représentés sur les figures 3 à 11, les moyens de stabilisation sont réversibles, c'est-à-dire qu'ils sont aptes à autoriser le retour de la portion proximale 6 et de la portion distale 8 dans une position pérenne déployée et à maintenir de nouveau la portion proximale 6 et la portion distale 8 dans la position pérenne déployée, dans le cas où la portion proximale 6 et la portion distale 8 ont été déplacées vers la position exceptionnelle escamotée. Ainsi, selon les modes de réalisation représentés sur les figures 3 à 11, le bras 1 entrebâilleur peut remplir de nouveau sa fonction d'entrebâilleur, c'est-à-dire maintenir de nouveau l'ouvrant 2 dans la position ouverte prédéterminée le cas échéant.According to the embodiments shown on the Figures 3 to 11 , the stabilization means are reversible, that is to say they are able to allow the return of the proximal portion 6 and the distal portion 8 in a deployed extended position and to maintain again the proximal portion 6 and the distal portion 8 in the extended perennial position, in the case where the proximal portion 6 and the distal portion 8 have been moved to the retracted exceptional position. Thus, according to the embodiments shown on the Figures 3 to 11 the stay arm 1 can again fulfill its function of stay, that is to say maintain the opening 2 in the predetermined open position if necessary.

Dans le mode de réalisation non compris dans l'invention illustré aux figures 12 à 14, les moyens de stabilisation comprennent un organe de liaison, par exemple un axe 44, reliant à la fois la portion distale 8 et la portion proximale 6. L'axe 44 permet d'immobiliser la portion proximale 6 et la portion distale 8 dans la position pérenne déployée en empêchant la rotation de l'une par rapport à l'autre. L'axe 44 est toutefois destiné à rompre dès que l'effort de poussée sur le bras 1 entrebâilleur dépasse la valeur seuil prédéterminée, pour libérer la rotation de la portion proximale 6 et de la portion distale 8 l'une par rapport à l'autre vers la position exceptionnelle escamotée.In the embodiment not included in the invention illustrated in the Figures 12 to 14 , the stabilizing means comprise a connecting member, for example an axis 44, connecting both the distal portion 8 and the proximal portion 6. The axis 44 immobilizes the proximal portion 6 and the distal portion 8 in the perennial position deployed by preventing the rotation of one relative to the other. The axis 44 is however intended to break as soon as the thrust force on the arm 1 stay exceeds the predetermined threshold value, to release the rotation of the proximal portion 6 and the distal portion 8 relative to the other towards the exceptional position retracted.

Le dessin du haut de la figure 14 montre l'axe 44 reliant la portion proximale 6 et la portion distale 8 sensiblement immobiles l'une par rapport à l'autre, en position pérenne déployée.The drawing from the top of the figure 14 shows the axis 44 connecting the proximal portion 6 and the distal portion 8 substantially immobile with respect to each other in the extended deployed position.

Le dessin du bas de la figure 14 montre l'axe 44 brisé ayant permis la rotation de la portion distale 8 par rapport à la portion proximale 6.The drawing of the bottom of the figure 14 shows the axis 44 broken allowing the rotation of the distal portion 8 relative to the proximal portion 6.

A la différence des modes de réalisation illustrés aux figures 3 à 11, l'axe 44 forme des moyens de stabilisation irréversibles ; il ne permet pas de stabiliser de nouveau la portion proximale 6 et la portion distale dans une position pérenne déployée après avoir été rompu. Ainsi, selon le mode de réalisation représenté sur les figures 12 et 13, le bras 1 entrebâilleur ne peut plus assurer sa fonction d'entrebâillement ; il assure toutefois une fonction de limiteur d'ouverture.Unlike the embodiments illustrated in Figures 3 to 11 the axis 44 forms irreversible stabilization means; it does not allow to stabilize again the proximal portion 6 and the distal portion in a perennial position deployed after being broken. Thus, according to the embodiment shown on the Figures 12 and 13 the left arm can no longer function as a crack; however, it provides a function of opening limiter.

L'invention a également pour objet une fenêtre ou une porte (non représentées) comprenant un ouvrant 2, un dormant 4, et un bras 1 entrebâilleur selon l'un des modes de réalisation illustrés aux figures 3 à 5.The subject of the invention is also a window or a door (not shown) comprising an opening 2, a frame 4, and a stay arm 1 according to one of the embodiments illustrated in FIGS. Figures 3 to 5 .

Le dormant 4 peut correspondre à un bâti encastré dans une baie, ou bien à un ouvrant ou vantail dit semi-fixe, c'est-à-dire apte à être maintenu verrouillé dans une position de fermeture tandis que l'ouvrant 2 est en position d'ouverture.The frame 4 may correspond to a frame embedded in a bay, or to an opening or leaf said semi-fixed, that is to say able to be kept locked in a closed position while the opening 2 is in opening position.

Le fonctionnement du bras 1 entrebâilleur est décrit plus en détails ci-après, partant d'un état initial dans lequel la portion proximale 6 et la portion distale 8 sont en position pérenne déployée, comme cela est représenté sur les figures 1, 3, 6, 8, 10 et 12.The operation of the stay arm 1 is described in more detail below, starting from an initial state in which the proximal portion 6 and the distal portion 8 are in the extended deployed position, as shown in FIGS. figures 1 , 3 , 6 , 8 , 10 and 12 .

Lorsque l'ouvrant 2 subit un effort 46 normal tendant à le pousser en direction du dormant, des contraintes mécaniques sont générées et transmises au bras 1 entrebâilleur.When the opening 2 undergoes a normal force 46 tending to push towards the frame, mechanical stresses are generated and transmitted to the arm 1 entrebâilleur.

Lorsque l'effort 46 est inférieur ou égal à une valeur seuil prédéterminée, le bras 1 entrebâilleur est capable d'y résister sans se briser. Les moyens de stabilisation sont adaptés pour maintenir conséquemment la portion proximale 6 et la portion distale 8 dans la position pérenne déployée.When the force 46 is less than or equal to a predetermined threshold value, the arm 1 stay is able to resist without breaking. The stabilization means are adapted to consequently maintain the proximal portion 6 and the distal portion 8 in the extended perennial position.

En revanche, en cas d'application d'un effort 26 sur l'ouvrant 2 supérieur à une valeur seuil prédéterminée, et uniquement dans ce cas, les moyens de stabilisation autorisent le déplacement de la portion proximale 6 et de la portion distale 8 l'une par rapport à l'autre, depuis la position pérenne déployée vers la position exceptionnelle escamotée, comme cela est visible sur les figures 2, 5, 7, 9, 11 et 13.On the other hand, if a force 26 is applied to the opening 2 greater than a predetermined threshold value, and only in this case, the stabilization means allow the displacement of the proximal portion 6 and the distal portion 8. one compared to the other, since the perennial position deployed to the exceptional position retracted, as is visible on the figures 2 , 5 , 7 , 9 , 11 and 13 .

En pivotant l'une par rapport à l'autre, la portion proximale 6 et la portion distale 8 permettent le rapprochement de l'ouvrant 2 vers le dormant 4. L'ouvrant 2 peut ainsi venir en appui contre le dormant 4 pour absorber un choc.By pivoting relative to each other, the proximal portion 6 and the distal portion 8 allow the opening 2 to approach the frame 4. The opening 2 can thus bear against the frame 4 to absorb a shock.

De plus, l'agencement oblique de la portion proximale 6 et de la portion distale 8 en position pérenne déployée provoque la rotation dans le sens horaire de la portion distale 8 par rapport à la portion proximale 6 pour faire remonter le plot 14 rattaché à l'extrémité 12 dans la lumière 16.In addition, the oblique arrangement of the proximal portion 6 and the distal portion 8 deployed in the extended position causes the clockwise rotation of the distal portion 8 relative to the proximal portion 6 to raise the stud 14 attached to the end 12 in the light 16.

A l'issue du choc ayant entraîné le déplacement de la portion distale 8 et de la portion proximale 6 l'une par rapport à l'autre, celles-ci peuvent de nouveau pivoter vers la position pérenne déployée. Selon le mode de réalisation choisi des moyens de stabilisation, le bras 1 peut alors soit continuer d'assurer une fonction d'entrebâillement, comme avant le choc, soit assurer une fonction de limiteur d'ouverture.At the end of the shock that has caused the displacement of the distal portion 8 and the proximal portion 6 relative to each other, they can again pivot to the extended deployed position. According to the embodiment chosen stabilization means, the arm 1 can then either continue to provide a cracking function, as before the shock, or provide a function of opening limiter.

Bien entendu, l'invention n'est nullement limitée aux modes de réalisation décrits ci-dessus, ces modes de réalisation n'ayant été donné qu'à titre d'exemples. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments, ou par la substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiments described above, these embodiments having been given only as examples. Modifications are possible, particularly from the point of view of the constitution of the various elements, or by the substitution of technical equivalents, without departing from the scope of protection of the invention.

Ainsi, la portion proximale 6 et la portion distale 8 peuvent être mobiles en translation l'une par rapport à l'autre entre la position pérenne déployée et la position exceptionnelle escamotée.Thus, the proximal portion 6 and the distal portion 8 may be movable in translation relative to each other between the extended perennial position and the retracted exceptional position.

Claims (4)

  1. A door chain (1) intended to maintain a door leaf (2) in a predetermined open position with respect to a door frame (4), wherein the door chain (1) comprises at least one proximal portion (6) intended to be linked to the door frame (4) and at least one distal portion (8) intended to be linked to the door leaf (2), linking means arranged to link the proximal portion (6) and the distal portion (8) and intended to allow a relative displacement of the proximal portion (6) and of the distal portion (8) between a permanent deployed position and an exceptional retracted position, stabilizing means arranged to maintain the proximal portion (6) and the distal portion (8) in the permanent deployed position as long as a pushing force on the arm (1) is less than or equal to a predetermined threshold value and to allow the relative displacement of the distal portion (8) and of the proximal portion (6) up to the exceptional retracted position as soon as the pushing force on the arm (1) exceeds the predetermined threshold value, wherein the linking means comprise an axis of rotation (20) about which are intended to pivot the proximal portion (6) and the distal portion (8) between the permanent deployed position and the exceptional retracted position, the proximal portion (6) and the distal portion (8) being arranged in a substantially oblique manner relative to one another in the permanent deployed position, and wherein the distal portion (8) comprises an end (12) intended to be linked to the door leaf (2), the end (12) of the distal portion (8) being fastened to a stud (14) slidably mounted in an opening (16), wherein the stabilizing means comprise snap-fitting means of the proximal portion (6) and of the distal portion (8) adapted to snap-fit the proximal portion (6) and the distal portion (8) in the permanent deployed position, characterized in that the snap-fitting means comprise two flexible members corresponding to one end (22) of the distal portion (8) and one end (28) of the proximal portion (6), the flexible members being adapted to engage a post (24) in a mortise (26), the insertion of the post (24) in the mortise (26) opposing any rotation of the proximal portion (6) and of the distal portion (8).
  2. The door chain (1) according to claim 1, characterized in that the proximal portion (6) and the distal portion (8) in the permanent deployed position form therebetween an angle (a) calculated to allow the rotation in a clockwise direction of the distal portion (8) relative to the proximal portion (6).
  3. The door chain (1) according to any of claims 1 to 2, characterized in that the stabilizing means are reversible.
  4. A window or a door comprising a door leaf (2), a door frame (4), and a door chain (1) according to any of claims 1 to 3.
EP13161664.1A 2012-04-02 2013-03-28 Restrictor arm for holding a door or window in a predetermined open position relative to a frame Not-in-force EP2647784B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1252986A FR2988764B1 (en) 2012-04-02 2012-04-02 ARB ENTREBAILLEUR FOR MAINTAINING AN OPENING IN A PREDETERMINED OPEN POSITION IN RELATION TO A DORMANT.

Publications (2)

Publication Number Publication Date
EP2647784A1 EP2647784A1 (en) 2013-10-09
EP2647784B1 true EP2647784B1 (en) 2018-07-04

Family

ID=47915137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13161664.1A Not-in-force EP2647784B1 (en) 2012-04-02 2013-03-28 Restrictor arm for holding a door or window in a predetermined open position relative to a frame

Country Status (2)

Country Link
EP (1) EP2647784B1 (en)
FR (1) FR2988764B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RS59234B1 (en) 2014-04-04 2019-10-31 Fapim S P A Device for the opening/closing of a window casing, with a stop member for the hung sash in the open position

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB577379A (en) * 1944-11-11 1946-05-15 Thomas Leonard Ellis Improvements in stays for hinged members
FR1049428A (en) * 1950-12-01 1953-12-29 Ford Door mounting and retention device
GB864764A (en) * 1959-04-01 1961-04-06 Edward Perry Locking stay to fix a casement window in any open position
DK155132C (en) * 1986-01-16 1991-11-25 Rasmussen Kann Ind As CUTTING FITTINGS FOR SIDE HANGED WINDOW FRAMES
CA2117976A1 (en) * 1993-10-15 1995-04-16 Michael D. Coleman Spring plunger latch assembly
FR2893657A3 (en) * 2005-11-18 2007-05-25 Renault Sas Temporary supporting stand for foldable frame e.g. bonnet, of motor vehicle, has tubular sections extending between retracted position and extended position, and springs provoking extension of tubular sections towards extended position
US20080136198A1 (en) * 2006-12-07 2008-06-12 Kidkraft, Lp. Adjustable bracing device for holding an openable case in an opened position

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR2988764B1 (en) 2014-11-28
EP2647784A1 (en) 2013-10-09
FR2988764A1 (en) 2013-10-04

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