EP3913593A1 - Attachment device for apparatus particularly such as a smoke and/or gas detector and such an appliance including said device - Google Patents

Attachment device for apparatus particularly such as a smoke and/or gas detector and such an appliance including said device Download PDF

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Publication number
EP3913593A1
EP3913593A1 EP20315248.3A EP20315248A EP3913593A1 EP 3913593 A1 EP3913593 A1 EP 3913593A1 EP 20315248 A EP20315248 A EP 20315248A EP 3913593 A1 EP3913593 A1 EP 3913593A1
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EP
European Patent Office
Prior art keywords
base
fixing
support
rotation
rotation plate
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
EP20315248.3A
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German (de)
French (fr)
Inventor
Jean-Claude Dromard
Christoph Kroh
Tobias Viertel
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HAGER SAFETY
Original Assignee
Hager Security SAS
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Filing date
Publication date
Application filed by Hager Security SAS filed Critical Hager Security SAS
Priority to EP20315248.3A priority Critical patent/EP3913593A1/en
Publication of EP3913593A1 publication Critical patent/EP3913593A1/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Definitions

  • the present invention relates to the field of security elements in buildings or buildings and in particular detectors and independent alarms and relates to a fixing device for an appliance more particularly of the smoke and / or gas detector type and such an appliance comprising said device. device.
  • Autonomous detectors and alarms are devices which detect smoke, gas or vapor particles in the air. air and, in response, emit an alarm such as an audible signal.
  • detectors are generally positioned in height by being fixed on supports such as the ceiling of a house or the upper part of a vertical wall.
  • detectors comprise, on the one hand, a detection box containing a system ensuring the detection and alarm functions and, on the other hand, a fixing base intended to be fixed on the support, generally using several assembly screws and / or plugs ensuring their connection with the support concerned.
  • the detection unit is secured to the base by various means of the clip type or mounting groove systems. This type of mounting allows the installer to fix only the base on the support, this one being able to be fixed firstly on the support, then the box on the base in a second step, which facilitates the fixing the detector on the support.
  • maintenance is greatly facilitated by the fact that the active part of the detector, that is to say the detection unit, can easily be detached from the base.
  • the fixing means such as mounting groove systems, allowing the detection box to be fixed to the base, require a relative rotation of the detection box with respect to its base. It It follows that the base, fixed on the support, must not have a degree of freedom in rotation. To allow such an assembly, the base is generally fixed to the support by means of two screws.
  • the object of the present invention is to alleviate these drawbacks by proposing a fixing device more particularly for an appliance of the smoke and / or gas detector type making it possible to optimize the assembly time of the appliance on any type of support and to reduce the cost.
  • the fixing device for an appliance more particularly of the smoke and / or gas detector type, said fixing device comprising a fixing base allowing the fixing of a housing of said appliance on a support and being able to be assembled with said housing, said base comprising a fixing wall having two opposite faces, namely an external face turned, in the state of attachment of the base, towards said support and an internal face turned towards said housing in the state of attachment of the latter to the base, is essentially characterized in that it further comprises, on the one hand, a fastening element making it possible to fix said base to the support at a single point of fixing by pressure mechanical, said base comprising a passage hole, passing through said fixing wall, to allow passage of the fixing element and its fixing in the support and, on the other hand, suitable anti-rotation means and tines, in the fixed state of said base to the support by said fixing element, to prevent a rotational movement of the base around the axis of said hole by an effect of mechanical interaction between at least part of said anti-shock means
  • the present invention also relates to an apparatus more particularly of the smoke and / or gas detector type, said apparatus comprising a housing and a fixing device, said fixing device comprising a base allowing the case to be fixed to a support and being assembled to said housing, said base comprising a fixing wall having two opposite faces, namely an outer face facing said support in the state of fixing on said support and an internal face facing said housing, characterized essentially in that said Fastening device consists of a fastening device according to the present invention.
  • the appended figures show a fixing device, according to the present invention, for an appliance more particularly of the smoke and / or gas detector type, said fixing device comprising a fixing base 1 allowing the fixing of a housing of said appliance on a support S and being able to be assembled with said housing 2, said base 1 comprising a fixing wall 12 having two opposite faces 10, 11, namely an external face 10 turned, in the state of fixing of the base 1, towards said support S and an internal face 11 turned towards said housing 2 in the state of attachment of the latter to the base 1.
  • such a device further comprises, on the one hand, a fixing element 3 making it possible to fix said base 1 to the support S at a single point of attachment by mechanical pressure, said base 1 comprising a passage hole 13. , preferably a single passage hole 13, passing through said fixing wall 12, to allow the passage of the fixing element 3 and its fixing in the support S and, on the other hand, anti-rotation means 4 suitable and intended, in the fixed state of said base 1 to the support S by said fixing element 3, to prevent a rotational movement of the base 1 around the axis X of said hole 13 by a mechanical interaction effect between the at least a part 40, 41 of said anti-rotation means 4 and the support S opposing said relative rotational movement between the base 1 and the support S.
  • the support S can be of the wall, ceiling or partition type, for fixing, for example, in a building or a building.
  • the through hole 13 is made in the center or substantially in the center of the wall 12 for fixing the base 1.
  • such a fixing device may also optionally comprise a mechanical assembly pin 5 capable of receiving the fixing element 3 in order to firmly fix the latter in the support S by mechanical deformation of said pin 5 under the effect of 'insertion of the fixing element 3 in the latter.
  • the plug 5 is preferably integrated into the wall 12 for fixing the base 1 by axially extending the passage hole 13 on the side of the external face 10, that is to say normally in the plane of said external face 10. .
  • Such a pin 5 can thus extend on the side of the base 1, that is to say on the side of its external face 10, intended to be pressed against or applied against a support S.
  • the integration of the plug 5 in the base 1, that is to say the fact that the latter are made in one piece, allows the installer not to have to have an additional plug.
  • One solution could be the sale of the base 1 with a dowel, but the latter could be lost by the user.
  • the plug 5 integrated into the base 1 according to this invention avoids this loss problem because the latter is always integral with the base 1.
  • the peg integrated into the base 1 also plays an anti-rotation role, which would not be the case for two separate parts not fixed together, that is to say in the case where the ankle is not integrated into the base 1 but attached.
  • the anti-rotation means 4 can consist of an anti-rotation plate 4, preferably metallic, applied and held either, in a first embodiment, on the external face 10 of the base 1 ( figures 1, 2 , 5 and 6 ) or, in a second embodiment, on the internal face 11 of the base 1 ( figures 7 , 8 , 9 , 10 , 11 and 12 ).
  • the anti-rotation plate 4 may comprise at least one element 40, 41 for mechanical anti-rotation interaction, for example in the form of a claw, point or lug, extending functionally from the side of the external face 10 of the anti-rotation plate 4.
  • the anti-rotation plate 4 may include a through-passage opening 42 located opposite the passage hole 13. The opening 42 allows the passage of the fixing element 3 through said anti-rotation plate 4.
  • the anti-rotation plate 4 can be applied and held in the outer face 10 or inner face 11 of the fixing wall 12 of the base 1 by being housed and held in a housing 18 formed, preferably centrally, in said outer face 10. or external 11.
  • the housing 18 may include retaining means making it possible, for example, to introduce the anti-rotation plate 4 into said housing 18 by elastic interlocking.
  • the or each element 40, 41 of anti-rotation mechanical interaction is suitable, during the fixing of the base 1 on the support S and under the effect of a pressure exerted by the fixing element 3 directly or indirectly on the anti-rotation plate 4, to come into pressure against the support S so as to be able to insert or sink or anchor in said support S ( figure 11 ) or to be in point contact with anti-rotation friction with said support S ( figure 12 ).
  • the wall 12 of fixing the base 1 comprises at least one through-passage orifice 14, 15 allowing the passage of the element 40, 41 of anti-rotation mechanical interaction through said orifice 14, 15 emerging from the external face 10 in order to be able to , when fixing the base 1 on the support 1 and under the effect of pressure exerted by the fixing element 3 directly on the anti-rotation plate 4, pressurize against the support S so as to be able to insert or sink or anchor in said support S ( figure 11 ) or to be in point contact with anti-rotation friction with said support S ( figure 12 ).
  • the fixing element 3 which may for example be a screw, comprises a head 30, of the screw head type, suitable for coming, when the base 1 is fixed to the support S or, in the case where the anti-rotation plate 4 is applied to the internal face 11 of the base 1 ( figures 7 , 8 , 9 , 10 , 11 and 12 ), in contact with the anti-rotation plate 4 to exert pressure directly on the latter, or, in the case where the anti-rotation plate 4 is mounted on the external face 10 of the base 1, in contact with the face internal 11 of the base 1 to ensure pressure indirectly on the anti-rotation plate 4 ( figures 1, 2 , 5 and 6 ).
  • the anti-rotation plate 4 may comprise a central part 43 and at least one part and at least one elastically deformable and / or flexible and / or flexible connecting part 44, 45, which can form a spring zone, connecting the or each element 40, 41 of anti-rotation mechanical interaction 40, 41 to said central part 43 (see more particularly the figures 1, 2 , 3, 4 , 5 , 6 , 8 , 10 , 11 and 12 ) and arranged so that, when fixing the base 1 on the support S ( figures 11 and 12 ), the fixing element 3, where appropriate its head 30, exerts pressure, directly or indirectly, on the central part 43.
  • the or each connecting part 44, 45 can have greater flexibility and / or flexibility and / or elasticity than the central part 43.
  • said base 1 may further comprise at least one receiving cavity 16, 17 formed in the outer face 10 of the base 1 to receive the or one of the elastically deformable parts 44, 45 during its deformation due to the resistance to sinking opposed by a support S. in particular when fixing in a support S of concrete type ( figure 12 ).
  • the elastically deformable part 44, 45 carries, preferably at its free end opposite to that connecting it to the central part 43, the or one of the fixing elements 3.
  • a plaster-type support S for example a plasterboard, that is to say a support S made from a soft or relatively soft material or having a low hardness opposing a low resistance to the penetration of the fastener 3, as can be seen in the figure 11
  • the pressure exerted by the fixing element 3, such as a screw, directly or indirectly on the anti-rotation plate 4 allows or each element 40, 41 of anti-rotation mechanical interaction to penetrate or to s '' to embed or anchor in such a support S.
  • the support S is made from a material harder than plaster, for example a concrete support S offering a high resistance to the penetration of the fiwation element 3, as can be seen in the figure figure 12 , the or each element 40, 41 of anti-rotation mechanical interaction cannot penetrate or sink into the support S under the pressure of the fixing element 3, such as a screw, exerted, directly or indirectly, on the anti-rotation plate 4.
  • the fixing element 3 such as a screw
  • the anti-rotation plate 4 may be provided with a spring zone.
  • the spring zone can be arranged in the anti-rotation plate 4 such that the fixing element 3 such as a screw does not press on this spring zone, otherwise it could no longer be functional.
  • the or each spring zone may be formed by the elastically deformable part 44, 45 connecting the or each element 40, 41 of anti-rotation mechanical interaction 40, 41 to the central part 43 of the anti-rotation plate 4.
  • the pressure of the fixing element 3 is transmitted to the or each element 40, 41 of anti-rotation mechanical interaction and the anti-rotation function of the anti-rotation plate 4 is ensured whatever the nature of the support S because the pressure of the or each element 40, 41 of anti-rotation mechanical interaction on the support S is sufficient to prevent the rotation of the base 1 around its axis X once the element (s) 40, 41 of mechanical anti-rotation interaction inserted, anchored or pressed into the support S, if necessary via the dowel 5 ( figure 11 ) or when the element (s) 40, 41 of anti-rotation mechanical interaction come into pressure with anti-rotation friction on the support S ( figure 12 ).
  • the present invention also relates to an apparatus more particularly of the smoke and / or gas detector type, said apparatus comprising a housing 2 ( figure 12 ) and a fixing device, said fixing device comprising a base 1 allowing the case 2 to be fixed on a support S and being assembled to said case 2, said base 1 comprising a fixing wall 12 having two opposite faces 10, 11, to namely an outer face 10 facing said support S in the state of attachment to said support S and an inner face 11 facing said housing 2.
  • said fixing device consists of a fixing device according to the present invention.

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Connection Of Plates (AREA)

Abstract

La présente invention a pour objet un dispositif de fixation pour appareil plus particulièrement du type détecteur de fumée et/ou de gaz, ledit dispositif de fixation comprenant une embase (1) de fixation comprenant une paroi (12) de fixation présentant deux faces (10, 11) opposées, à savoir une face externe (10) tournée, à l'état de fixation de l'embase (1) vers ledit support (S) et une face interne (11) tournée vers ledit boîtier (2) à l'état de fixation de ce dernier sur l'embase (1).Il comprend en outre, d'une part, un élément de fixation (3) permettant de fixer ladite embase (1) au support (S) en un unique point de fixation par pression mécanique, ladite embase (1) comprenant un trou (13) de passage, traversant ladite paroi (12) de fixation, pour permettre le passage de l'élément de fixation (3) et sa fixation dans le support (S) et, d'autre part, des moyens anti-rotation (4) aptes et destinés, à l'état fixé de ladite embase (1) au support (S) par ledit élément de fixation (3), à empêcher un mouvement de rotation de l'embase (1) autour de l'axe (X) dudit trou (13). Elle a également pour objet un appareil plus particulièrement du type détecteur de fumée et/ou de gaz comprenant ledit dispositif.The present invention relates to a fixing device for an appliance more particularly of the smoke and / or gas detector type, said fixing device comprising a fixing base (1) comprising a fixing wall (12) having two faces (10). , 11) opposite, namely an outer face (10) turned, in the state of attachment of the base (1) to said support (S) and an inner face (11) facing said housing (2) to the 'state of fixing of the latter on the base (1) .It further comprises, on the one hand, a fixing element (3) for fixing said base (1) to the support (S) at a single point of fixing by mechanical pressure, said base (1) comprising a passage hole (13), passing through said fixing wall (12), to allow passage of the fixing element (3) and its fixing in the support (S) and, on the other hand, anti-rotation means (4) suitable and intended, in the fixed state of said base (1) to the support (S) by said fixing element (3), to preventing a rotational movement of the base (1) around the axis (X) of said hole (13). It also relates to an apparatus more particularly of the smoke and / or gas detector type comprising said device.

Description

La présente invention concerne le domaine des éléments de sécurité dans les bâtiments ou édifices et notamment les détecteurs et avertisseurs autonomes et a pour objet un dispositif de fixation pour appareil plus particulièrement du type détecteur de fumée et/ou de gaz et un tel appareil comprenant ledit dispositif.The present invention relates to the field of security elements in buildings or buildings and in particular detectors and independent alarms and relates to a fixing device for an appliance more particularly of the smoke and / or gas detector type and such an appliance comprising said device. device.

Les détecteurs et avertisseurs autonomes, plus particulièrement ceux prévus pour la détection de fumée et/ou de gaz, communément appelés détecteurs de fumée et/ou de gaz, sont des appareils qui détectent les fumées, le gaz ou des particules de vapeur dans l'air et, en réaction, émettent une alarme telle qu'un signal sonore.Autonomous detectors and alarms, more particularly those intended for the detection of smoke and / or gas, commonly called smoke and / or gas detectors, are devices which detect smoke, gas or vapor particles in the air. air and, in response, emit an alarm such as an audible signal.

Ces déctecteurs sont généralement positionnés en hauteur en étant fixés sur des supports tels que le plafond d'une habitation ou la partie haute d'une paroi verticale.These detectors are generally positioned in height by being fixed on supports such as the ceiling of a house or the upper part of a vertical wall.

Ces détecteurs comprennent, d'une part, un boitier de détection renfermant un système assurant les fonctions de détection et d'alarme et, d'autre part, une embase de fixation destinée à être fixée sur le support, généralement à l'aide de plusieurs vis et/ou de chevilles d'assemblage assurant leur liaison avec le support concerné. Le boîtier de détection est solidarisé à l'embase par différents moyens de type clips ou systèmes de rainures de montage. Ce type de montage permet à l'installateur de ne fixer que l'embase sur le support, celle-ci pouvant être fixée dans un premier temps sur le support, puis le boîtier sur l'embase dans un deuxième temps, ce qui facilite la fixation du détecteur sur le support. En outre, la maintenance est grandement facilitée par le fait que la partie active du détecteur, c'est-à-dire le boîtier de détection, peut aisément être désolidarisé de l'embase.These detectors comprise, on the one hand, a detection box containing a system ensuring the detection and alarm functions and, on the other hand, a fixing base intended to be fixed on the support, generally using several assembly screws and / or plugs ensuring their connection with the support concerned. The detection unit is secured to the base by various means of the clip type or mounting groove systems. This type of mounting allows the installer to fix only the base on the support, this one being able to be fixed firstly on the support, then the box on the base in a second step, which facilitates the fixing the detector on the support. In addition, maintenance is greatly facilitated by the fact that the active part of the detector, that is to say the detection unit, can easily be detached from the base.

Généralement les moyens de fixation, tels que les systèmes de rainures de montage, permettant la fixation du boîtier de détection sur l'embase, nécessitent une rotation relative du boîtier de détection par rapport à son embase. Il en découle que l'embase, fixée sur le support, ne doit pas avoir de degré de liberté en rotation. Pour permettre un tel montage, l'embase est généralement fixée sur le support au moyen de deux vis.Generally, the fixing means, such as mounting groove systems, allowing the detection box to be fixed to the base, require a relative rotation of the detection box with respect to its base. It It follows that the base, fixed on the support, must not have a degree of freedom in rotation. To allow such an assembly, the base is generally fixed to the support by means of two screws.

Toutefois, cette solution est couteuse en temps de montage et en nombre de vis et de chevilles et n'est pas optimale. En outre, dans le cas d'un plafond en béton, il faut percer plusieurs trous, généralement deux trous, péalablement à la fixation de l'embase sur ledit plafond. De plus, si le plafond est de nature différente, par exemple du plâtre, le système de fixation de l'embase doit être adapté au support et comprendre des éléments de fixation spécifiques tels que des chevilles pour le plâtre ou pour le placo-plâtre.However, this solution is costly in terms of assembly time and the number of screws and plugs and is not optimal. In addition, in the case of a concrete ceiling, it is necessary to drill several holes, generally two holes, in order to fix the base on said ceiling. In addition, if the ceiling is of a different nature, for example plaster, the fixing system of the base must be adapted to the support and include specific fixing elements such as plugs for plaster or for placo.

La présente invention a pour but de pallier ces inconvénients en proposant un dispositif de fixation plus particulièrement pour appareil du type détecteur de fumée et/ou de gaz permettant d'optimiser le temps de montage de l'appareil sur tout type de support et de diminuer le coût.The object of the present invention is to alleviate these drawbacks by proposing a fixing device more particularly for an appliance of the smoke and / or gas detector type making it possible to optimize the assembly time of the appliance on any type of support and to reduce the cost.

A cet effet, le dispositif de fixation, selon la présente invention, pour appareil plus particulièrement du type détecteur de fumée et/ou de gaz, ledit dispositif de fixation comprenant une embase de fixation permettant la fixation d'un boîtier dudit appareil sur un support et étant apte à être assemblée audit boîtier, ladite embase comprenant une paroi de fixation présentant deux faces opposées, à savoir une face externe tournée, à l'état de fixation de l'embase, vers ledit support et une face interne tournée vers ledit boîtier à l'état de fixation de ce dernier sur l'embase, se caractérise essentiellement en ce qu'il comprend en outre, d'une part, un élément de fixation permettant de fixer ladite embase au support en un unique point de fixation par pression mécanique, ladite embase comprenant un trou de passage, traversant ladite paroi de fixation, pour permettre le passage de l'élément de fixation et sa fixation dans le support et, d'autre part, des moyens anti-rotation aptes et destinés, à l'état fixé de ladite embase au support par ledit élément de fixation, à empêcher un mouvement de rotation de l'embase autour de l'axe dudit trou par un effet d'interaction mécanique entre au moins une partie desdits moyens anti-rotation et le support s'opposant audit mouvement de rotation relatif entre l'embase et le support.To this end, the fixing device, according to the present invention, for an appliance more particularly of the smoke and / or gas detector type, said fixing device comprising a fixing base allowing the fixing of a housing of said appliance on a support and being able to be assembled with said housing, said base comprising a fixing wall having two opposite faces, namely an external face turned, in the state of attachment of the base, towards said support and an internal face turned towards said housing in the state of attachment of the latter to the base, is essentially characterized in that it further comprises, on the one hand, a fastening element making it possible to fix said base to the support at a single point of fixing by pressure mechanical, said base comprising a passage hole, passing through said fixing wall, to allow passage of the fixing element and its fixing in the support and, on the other hand, suitable anti-rotation means and tines, in the fixed state of said base to the support by said fixing element, to prevent a rotational movement of the base around the axis of said hole by an effect of mechanical interaction between at least part of said anti-shock means. -rotation and the support opposing said relative rotational movement between the base and the support.

La présente invention a également pour objet un appareil plus particulièrement du type détecteur de fumée et/ou de gaz, ledit appareil comprenant un boîtier et un dispositif de fixation, ledit dispositif de fixation comprenant une embase permettant la fixation du boîtier sur un support et étant assemblée audit boîtier, ladite embase comprenant une paroi de fixation présentant deux faces opposées, à savoir une face externe tournée vers ledit support à l'état de fixation sur ledit support et une face interne tournée vers ledit boîtier, se caractérisant essentiellement en ce que ledit dispositif de fixation consiste en un dispositif de fixation selon la présente invention.The present invention also relates to an apparatus more particularly of the smoke and / or gas detector type, said apparatus comprising a housing and a fixing device, said fixing device comprising a base allowing the case to be fixed to a support and being assembled to said housing, said base comprising a fixing wall having two opposite faces, namely an outer face facing said support in the state of fixing on said support and an internal face facing said housing, characterized essentially in that said Fastening device consists of a fastening device according to the present invention.

L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence aux dessins schématiques annexés, dans lesquels :

  • [Fig. 1] est une vue en perspective du dispositif de fixation selon la présente invention, côté face externe de la paroi de fixation de l'embase, dans un premier mode de réalisation où la plaque anti-rotation, comprenant deux éléments d'interaction mécanique anti-rotation, est située sur ladite face externe et dans une forme de réalisation du dispositif comprenant une cheville d'assemblage intégrée dans l'embase di côté de ladite face externe,
  • [Fig. 2] est une vue partielle du dispositif de fixation représenté sur la figure 1 selon une orientation opposée, côté face interne, avec un élément de élément de fixation en forme de vis,
  • [Fig. 3] est une vue en perspective de la plaque anti-rotation montrant sa face où s'étendent les deux éléments d'interaction mécanique anti-rotation,
  • [Fig. 4] montre la plaque anti-rotation représentée sur la figure 3 selon une orientation opposée, du côté de la face opposée à celle où s'étendent les deux éléments d'interaction mécanique anti-rotation,
  • [Fig. 5] montre le dispositif représenté sur la figure 1 selon une vue en plan côté face interne, sans l'élément de fixation,
  • [Fig. 6] montre le dispositif représenté sur la figure 5 selon une orientation opposée, côté face externe,
  • [Fig. 7] est une vue en perspective du dispositif de fixation selon la présente invention, côté face externe de la paroi de fixation de l'embase, dans un deuxième mode de réalisation où la plaque anti-rotation, comprenant deux éléments d'interaction mécanique anti-rotation, est située sur la face interne opposée à la dite face externe, dans une forme de réalisation comprenant une cheville d'assemblage intégrée dans l'embase 1 du côté de la face externe,
  • [Fig. 8] est une vue partielle du dispositif de fixation représenté sur la figure 7 selon une orientation opposée, côté face interne sur laquelle est située la plaque anti-rotation, avec un élément de fixation du type vis,
  • [Fig. 9] montre le dispositif représenté sur la figure 7 selon une vue en plan côté face externe, sans l'élément de fixation inséré dans la cheville d'assemblage,
  • [Fig. 10] montre le dispositif représenté sur la figure 7 selon une vue en plan côté face interne, sans l'élément de fixation,
  • [Fig. 11] montre une vue en coupe transversale du dispositif représenté sur la figure 7, à l'état de fixation sur un support du type réalisé à partir d'un matériau tel que du plâtre, avec les deux éléments d'interaction mécanique anti-rotation enfoncés dans ledit support et la cheville d'assemblage permettant de fixer solidement l'élément de fixation du type vis dans ledit support,
  • [Fig. 12] montre une vue en coupe transversale d'un appareil du type détecteur de fumée et/ou de gaz, ledit appareil comprenant le dispositif représenté sur la figure 7, à l'état de fixation sur un support du type en béton avec les deux éléments d'interaction mécanique anti-rotation venant en contact ponctuel avec friction anti-rotation avec ledit support S.
The invention will be better understood, thanks to the description below, which relates to a preferred embodiment, given by way of non-limiting example, and explained with reference to the appended schematic drawings, in which:
  • [ Fig. 1 ] is a perspective view of the fixing device according to the present invention, on the outer face side of the fixing wall of the base, in a first embodiment where the anti-rotation plate, comprising two anti-mechanical interaction elements. rotation, is located on said outer face and in one embodiment of the device comprising an assembly peg integrated into the base di side of said outer face,
  • [ Fig. 2 ] is a partial view of the fixing device shown in figure 1 in an opposite orientation, internal face side, with a screw-shaped fastening element element,
  • [ Fig. 3 ] is a perspective view of the anti-rotation plate showing its face where the two anti-rotation mechanical interaction elements extend,
  • [ Fig. 4 ] shows the anti-rotation plate shown on the figure 3 in an opposite orientation, on the side of the face opposite to that where the two anti-rotation mechanical interaction elements extend,
  • [ Fig. 5 ] shows the device shown on figure 1 according to a plan view on the internal face, without the fixing element,
  • [ Fig. 6 ] shows the device shown on figure 5 in an opposite orientation, on the outer face side,
  • [ Fig. 7 ] is a perspective view of the fixing device according to the present invention, on the outer face side of the fixing wall of the base, in a second embodiment where the anti-rotation plate, comprising two anti-mechanical interaction elements. rotation, is located on the inner face opposite to said outer face, in one embodiment comprising an assembly peg integrated into the base 1 on the side of the outer face,
  • [ Fig. 8 ] is a partial view of the fixing device shown in figure 7 in an opposite orientation, on the inside face on which the anti-rotation plate is located, with a fixing element of the screw type,
  • [ Fig. 9 ] shows the device shown on figure 7 according to a plan view from the external face, without the fixing element inserted in the connecting plug,
  • [ Fig. 10 ] shows the device shown on figure 7 according to a plan view on the internal face, without the fixing element,
  • [ Fig. 11 ] shows a cross-sectional view of the device shown in figure 7 , in the state of attachment to a support of the type made from a material such as plaster, with the two anti-rotation mechanical interaction elements driven into said support and the assembly pin making it possible to firmly fix the 'screw-type fixing element in said support,
  • [ Fig. 12 ] shows a cross-sectional view of an apparatus of the smoke and / or gas detector type, said apparatus comprising the device shown in FIG. figure 7 , in the state of fixing on a support of the concrete type with the two anti-rotation mechanical interaction elements coming into point contact with anti-rotation friction with said support S.

Les figures annexées montrent un dispositif de fixation, selon la présente invention, pour appareil plus particulièrement du type détecteur de fumée et/ou de gaz, ledit dispositif de fixation comprenant une embase 1 de fixation permettant la fixation d'un boîtier dudit appareil sur un support S et étant apte à être assemblée audit boîtier 2, ladite embase 1 comprenant une paroi 12 de fixation présentant deux faces 10, 11 opposées, à savoir une face externe 10 tournée, à l'état de fixation de l'embase 1, vers ledit support S et une face interne 11 tournée vers ledit boîtier 2 à l'état de fixation de ce dernier sur l'embase 1.The appended figures show a fixing device, according to the present invention, for an appliance more particularly of the smoke and / or gas detector type, said fixing device comprising a fixing base 1 allowing the fixing of a housing of said appliance on a support S and being able to be assembled with said housing 2, said base 1 comprising a fixing wall 12 having two opposite faces 10, 11, namely an external face 10 turned, in the state of fixing of the base 1, towards said support S and an internal face 11 turned towards said housing 2 in the state of attachment of the latter to the base 1.

Conformément à la présente invention un tel dispositif comprend en outre, d'une part, un élément de fixation 3 permettant de fixer ladite embase 1 au support S en un unique point de fixation par pression mécanique, ladite embase 1 comprenant un trou 13 de passage, de préférence un unique trou 13 de passage, traversant ladite paroi 12 de fixation, pour permettre le passage de l'élément de fixation 3 et sa fixation dans le support S et, d'autre part, des moyens anti-rotation 4 aptes et destinés, à l'état fixé de ladite embase 1 au support S par ledit élément de fixation 3, à empêcher un mouvement de rotation de l'embase 1 autour de l'axe X dudit trou 13 par un effet d'interaction mécanique entre au moins une partie 40, 41 desdits moyens anti-rotation 4 et le support S s'opposant audit mouvement de rotation relatif entre l'embase 1 et le support S.In accordance with the present invention, such a device further comprises, on the one hand, a fixing element 3 making it possible to fix said base 1 to the support S at a single point of attachment by mechanical pressure, said base 1 comprising a passage hole 13. , preferably a single passage hole 13, passing through said fixing wall 12, to allow the passage of the fixing element 3 and its fixing in the support S and, on the other hand, anti-rotation means 4 suitable and intended, in the fixed state of said base 1 to the support S by said fixing element 3, to prevent a rotational movement of the base 1 around the axis X of said hole 13 by a mechanical interaction effect between the at least a part 40, 41 of said anti-rotation means 4 and the support S opposing said relative rotational movement between the base 1 and the support S.

Le support S peut être du type mur, plafond ou cloison, pour une fixation, par exemple, dans un bâtiment ou un édifice.The support S can be of the wall, ceiling or partition type, for fixing, for example, in a building or a building.

De préférence, comme on peut le voir sur les figures 2, 5, 10, 11 et 12, le trou 13 de passage est pratiqué au centre ou sensiblement au centre de la paroi 12 de fixation de l'embase 1.Preferably, as can be seen from the figures 2 , 5 , 10, 11 and 12 , the through hole 13 is made in the center or substantially in the center of the wall 12 for fixing the base 1.

De préférence, comme on peut le voir également plus particulièrement sur les figures 1, 2, 5, 6, 7, 8, 9, 11 et 12 un tel dispositif de fixation peut comprendre en outre, optionnellement, une cheville 5 d'assemblage mécanique apte à recevoir l'élément de fixation 3 pour fixer solidement ce dernier dans le support S par déformation mécanique de ladite cheville 5 sous l'effet de l'insertion de l'élément de fixation 3 dans cette dernière. La cheville 5 est, préférentiellement, intégrée dans la paroi 12 de fixation de l'embase 1 en prolongeant axialement le trou 13 de passage du côté de la face externe 10, c'est-à-dire normalement au plan de ladite face externe 10.Preferably, as can also be seen more particularly on the figures 1, 2 , 5 , 6, 7 , 8, 9 , 11 and 12 such a fixing device may also optionally comprise a mechanical assembly pin 5 capable of receiving the fixing element 3 in order to firmly fix the latter in the support S by mechanical deformation of said pin 5 under the effect of 'insertion of the fixing element 3 in the latter. The plug 5 is preferably integrated into the wall 12 for fixing the base 1 by axially extending the passage hole 13 on the side of the external face 10, that is to say normally in the plane of said external face 10. .

Une telle cheville 5 peut ainsi s'étendre du coté de l'embase 1, c'est à dire du côté de sa face externe 10, destiné à être plaqué ou appliqué contre un support S. D'autre part, l'intégration de la cheville 5 dans l'embase 1, c'est-à-dire le fait que ces dernières soient réalisées en une seule pièce, permet à l'installateur de ne pas avoir à disposer d'une cheville supplémentaire. Une solution pourrait être la vente de l'embase 1 avec une cheville, mais cette dernière pourrait être perdue p&ar l'utiisateur. La cheville 5 intégrée dans l'embase 1 selon la présente invention évite ce problème de perte car celle-ci est toujours solidaire de l'embase 1. Enfin, la cheville intégrée dans l'embase 1 joue aussi un rôle d'anti-rotation, ce qui ne serait pas le cas pour deux pièces distinctes non fixées entre elles c'est-à-dire dans le cas où la cheville n'est pas intégrée dans l'embase 1 mais rapportée.Such a pin 5 can thus extend on the side of the base 1, that is to say on the side of its external face 10, intended to be pressed against or applied against a support S. On the other hand, the integration of the plug 5 in the base 1, that is to say the fact that the latter are made in one piece, allows the installer not to have to have an additional plug. One solution could be the sale of the base 1 with a dowel, but the latter could be lost by the user. The plug 5 integrated into the base 1 according to this invention avoids this loss problem because the latter is always integral with the base 1. Finally, the peg integrated into the base 1 also plays an anti-rotation role, which would not be the case for two separate parts not fixed together, that is to say in the case where the ankle is not integrated into the base 1 but attached.

Si on se réfère aux figures annexées et plus particulièrement aux figures 3 et 4, on peut voir que les moyens anti-rotation 4 peuvent consister en une plaque anti-rotation 4, de préférence métallique, appliquée et maintenue soit, dans un premier mode de réalisation, sur la face externe 10 de l'embase 1 (figures 1, 2, 5 et 6) soit, dans un deuxième mode de réalisation, sur la face interne 11 de l'embase 1 (figures 7, 8, 9, 10, 11 et 12).If one refers to the appended figures and more particularly to the figures 3 and 4 , it can be seen that the anti-rotation means 4 can consist of an anti-rotation plate 4, preferably metallic, applied and held either, in a first embodiment, on the external face 10 of the base 1 ( figures 1, 2 , 5 and 6 ) or, in a second embodiment, on the internal face 11 of the base 1 ( figures 7 , 8 , 9 , 10 , 11 and 12 ).

La plaque anti-rotation 4 peut comprendre au moins un élément 40, 41 d'interaction mécanique anti-rotation, par exemple en forme de griffe, de pointe ou d'ergot, s'étendant fonctionnellement du côté de la face externe 10 de la plaque anti-rotation 4. En outre on peut voir que la plaque anti-rotation 4 peut comporter une ouverture 42 de passage traversante située en regard du trou 13 de passage. L'ouverture 42 permet le passage de l'élément de fixation 3 à travers ladite plaque anti-rotation 4.The anti-rotation plate 4 may comprise at least one element 40, 41 for mechanical anti-rotation interaction, for example in the form of a claw, point or lug, extending functionally from the side of the external face 10 of the anti-rotation plate 4. In addition, it can be seen that the anti-rotation plate 4 may include a through-passage opening 42 located opposite the passage hole 13. The opening 42 allows the passage of the fixing element 3 through said anti-rotation plate 4.

La plaque anti-rotation 4 peut être appliquée et maintenue dans la face externe 10 ou interne 11 de la paroi de fixation 12 de l'embase 1 en étant logée et maintenue dans un logement 18 pratiqué, de préférence centralement, dans ladite face externe 10 ou externe 11. Le logement 18 peut comprendre des moyens de retenus permettant par exemple d'introduire la plaque anti-rotation 4 dans ledit logement 18 par emboîtement élastique.The anti-rotation plate 4 can be applied and held in the outer face 10 or inner face 11 of the fixing wall 12 of the base 1 by being housed and held in a housing 18 formed, preferably centrally, in said outer face 10. or external 11. The housing 18 may include retaining means making it possible, for example, to introduce the anti-rotation plate 4 into said housing 18 by elastic interlocking.

Le ou chaque élément 40, 41 d'interaction mécanique anti-rotation est apte, lors de la fixation de l'embase 1 sur le support S et sous l'effet d'une pression exercée par l'élément de fixation 3 directement ou indirectement sur la plaque anti-rotation 4, à venir en pression contre le support S de sorte à pouvoir s'insérer ou s'enfoncer ou s'ancrer dans ledit support S (figure 11) ou à être en contact ponctuel avec friction anti-rotation avec ledit support S (figure 12).The or each element 40, 41 of anti-rotation mechanical interaction is suitable, during the fixing of the base 1 on the support S and under the effect of a pressure exerted by the fixing element 3 directly or indirectly on the anti-rotation plate 4, to come into pressure against the support S so as to be able to insert or sink or anchor in said support S ( figure 11 ) or to be in point contact with anti-rotation friction with said support S ( figure 12 ).

Dans le deuxième mode de réalisation où la plaque anti-rotation 4 est appliquée et maintenue sur la face interne 11 de l'embase 1, la paroi 12 de fixation de l'embase 1 comprend au moins un orifice 14, 15 de passage traversant permettant le passage de l'élément 40, 41 d'interaction mécanique anti-rotation à travers ledit orifice 14, 15 en émergeant de la face externe 10 pour pouvoir, lors de la fixation de l'embase 1 sur le support 1 et sous l'effet d'une pression exercée par l'élément de fixation 3 directement sur la plaque anti-rotation 4, venir en pression contre le support S de sorte à pouvoir s'insérer ou s'enfoncer ou s'ancrer dans ledit support S (figure 11) ou à être en contact ponctuel avec friction anti-rotation avec ledit support S (figure 12).In the second embodiment where the anti-rotation plate 4 is applied and held on the internal face 11 of the base 1, the wall 12 of fixing the base 1 comprises at least one through-passage orifice 14, 15 allowing the passage of the element 40, 41 of anti-rotation mechanical interaction through said orifice 14, 15 emerging from the external face 10 in order to be able to , when fixing the base 1 on the support 1 and under the effect of pressure exerted by the fixing element 3 directly on the anti-rotation plate 4, pressurize against the support S so as to be able to insert or sink or anchor in said support S ( figure 11 ) or to be in point contact with anti-rotation friction with said support S ( figure 12 ).

Dans une forme de réalisation préférentielle, l'élément de fixation 3, qui peut être par exemple une vis, comprend une tête 30, du type tête de vis, apte à venir, lors de la fixation de l'embase 1 sur le support S soit, dans le cas où la plaque anti-rotation 4 est appliquée sur la face interne 11 de l'embase 1 (figures 7, 8, 9, 10, 11 et 12), en contact avec la plaque anti-rotation 4 pour exercer la pression directement sur cette dernière, soit, dans le cas où la plaque anti-rotation 4 est monté sur la face externe 10 de l'embase 1, en contact avec la face interne 11 de l'embase 1 pour assurer la pression indirectement sur la plaque anti-rotation 4 (figures 1, 2, 5 et 6).In a preferred embodiment, the fixing element 3, which may for example be a screw, comprises a head 30, of the screw head type, suitable for coming, when the base 1 is fixed to the support S or, in the case where the anti-rotation plate 4 is applied to the internal face 11 of the base 1 ( figures 7 , 8 , 9 , 10 , 11 and 12 ), in contact with the anti-rotation plate 4 to exert pressure directly on the latter, or, in the case where the anti-rotation plate 4 is mounted on the external face 10 of the base 1, in contact with the face internal 11 of the base 1 to ensure pressure indirectly on the anti-rotation plate 4 ( figures 1, 2 , 5 and 6 ).

Dans une forme préférentielle de la plaque anti-rotation 4, celle-ci peut comprendre une partie centrale 43 et au moins une partie et au moins une partie de liaison 44, 45 élastiquement déformable et/ou flexible et/ou souple, pouvant former une zone ressort, reliant le ou chaque élément 40, 41 d'interaction mécanique anti-rotation 40, 41 à ladite partie centrale 43 (voir plus particulièrement les figures 1, 2, 3, 4, 5, 6, 8, 10, 11 et 12) et disposée de telle sorte que, lors de la fixation de l'embase 1 sur le support S (figures 11 et 12), l'élément de fixation 3, le cas échéant sa tête 30, exerce la pression, directement ou indirectement, sur la partie centrale 43. On comprendra que la ou chaque partie de liaison 44, 45 peut présenter une plus grande flexibilité et/ou souplesse et/ou élasticité que la partie centrale 43.In a preferred form of the anti-rotation plate 4, the latter may comprise a central part 43 and at least one part and at least one elastically deformable and / or flexible and / or flexible connecting part 44, 45, which can form a spring zone, connecting the or each element 40, 41 of anti-rotation mechanical interaction 40, 41 to said central part 43 (see more particularly the figures 1, 2 , 3, 4 , 5 , 6 , 8 , 10 , 11 and 12 ) and arranged so that, when fixing the base 1 on the support S ( figures 11 and 12 ), the fixing element 3, where appropriate its head 30, exerts pressure, directly or indirectly, on the central part 43. It will be understood that the or each connecting part 44, 45 can have greater flexibility and / or flexibility and / or elasticity than the central part 43.

Dans le cas du deuxième mode de réalisation où la plaque anti-rotation 4 est appliquée et maintenue sur la face externe 10 de l'embase 1 (figures 1, 2, 5 et 6), ladite embase 1 peut comprendre en outre au moins une cavité de réception 16, 17 pratiquée dans la face externe 10 de l'embase 1 pour recevoir la ou l'une des parties élastiquement déformable 44, 45 lors de sa déformation du fait de la résistance à l'enfoncement opposée par un support S. notamment lors de la fixation dans un support S de type béton (figure 12). De préférence, la partie élastiquement déformable 44, 45 porte, de préférence à son extrémité libre opposée à celle la reliant à la partie centrale 43, le ou l'un des l'élément de fixation 3.In the case of the second embodiment where the anti-rotation plate 4 is applied and held on the external face 10 of the base 1 ( figures 1, 2 , 5 and 6 ), said base 1 may further comprise at least one receiving cavity 16, 17 formed in the outer face 10 of the base 1 to receive the or one of the elastically deformable parts 44, 45 during its deformation due to the resistance to sinking opposed by a support S. in particular when fixing in a support S of concrete type ( figure 12 ). Preferably, the elastically deformable part 44, 45 carries, preferably at its free end opposite to that connecting it to the central part 43, the or one of the fixing elements 3.

Ainsi, par exemple, dans le cas d'un support S de type plâtre, par exemple une plaque de plâtre, c'est-à-dire un support S réalisé à partir d'un matériau tendre ou relativement tendre ou présentant une dureté faible opposant une faible résistance à la pénétration de l'élément de fixation 3, comme on peut le voir sur la figure 11, la pression exercée par l'élément de fixation 3, tel qu'une vis, directement ou indirectement sur la plaque anti-rotation 4, permet à ou à chaque élément 40, 41 d'interaction mécanique anti-rotation de pénétrer ou de s'enfoncer ou de s'ancrer dans un tel support S.Thus, for example, in the case of a plaster-type support S, for example a plasterboard, that is to say a support S made from a soft or relatively soft material or having a low hardness opposing a low resistance to the penetration of the fastener 3, as can be seen in the figure 11 , the pressure exerted by the fixing element 3, such as a screw, directly or indirectly on the anti-rotation plate 4, allows or each element 40, 41 of anti-rotation mechanical interaction to penetrate or to s '' to embed or anchor in such a support S.

Si le support S est réalisé à partir d'un matériau plus dur que le plâtre, par exemple un support S en béton opposant une résistance élevée à la pénétration de l'élément de fiwation 3, comme on peut le voir sur la figure 12, le ou chaque élément 40, 41 d'interaction mécanique anti-rotation ne peut pas pénétrer ou s'enfoncer dans le support S sous la pression de l'élément de fixation 3, tel qu'une vis, exercée, directement ou indirectement, sur la plaque anto-rotation 4. Dans un tel cas, afin de rendre la plaque anti rotation 4 fonctionnelle, celle-ci peut être pourvue d'une zone ressort. La zone ressort peut être disposée dans la plaque anti-rotation 4 de telle sorte que l'élément de fixation 3 tel qu'une vis ne presse pas sur cette zone ressort, sinon elle pourrait de ne plus être fonctionnelle. La ou chaque zone ressort peut être formée par la partie élastiquement déformable 44, 45 reliant le ou chaque élément 40, 41 d'interaction mécanique anti-rotation 40, 41 à la partie centrale 43 de la plaque anti-rotation 4. Ainsi lors de l'assemblage de l'embase 1 sur un support S dur de type béton, la pression de la l'élément de fixation 3 est transmise à le ou chaque élément 40, 41 d'interaction mécanique anti-rotation qui, ne pouvant pénétrer ou s'enfoncer ou s'ancrer dans le béton, provoque une flexion de la zone ressort 44, 45 évitant la détérioration, par exemple sous la forme d'un écrasement, du ou de chaque élément 40, 41 d'interaction mécanique anti-rotation 40, 41 tout en permettant à ce ou ces derniers de venir en contact ponctuel avec friction anti-rotation avec ledit support S pour réaliser la fonction anti-rotation de la présente invention.If the support S is made from a material harder than plaster, for example a concrete support S offering a high resistance to the penetration of the fiwation element 3, as can be seen in the figure figure 12 , the or each element 40, 41 of anti-rotation mechanical interaction cannot penetrate or sink into the support S under the pressure of the fixing element 3, such as a screw, exerted, directly or indirectly, on the anti-rotation plate 4. In such a case, in order to make the anti-rotation plate 4 functional, the latter may be provided with a spring zone. The spring zone can be arranged in the anti-rotation plate 4 such that the fixing element 3 such as a screw does not press on this spring zone, otherwise it could no longer be functional. The or each spring zone may be formed by the elastically deformable part 44, 45 connecting the or each element 40, 41 of anti-rotation mechanical interaction 40, 41 to the central part 43 of the anti-rotation plate 4. Thus, when the assembly of the base 1 on a hard support S of the concrete type, the pressure of the fixing element 3 is transmitted to the or each element 40, 41 of anti-rotation mechanical interaction which cannot penetrate or sink into or become anchored in the concrete, causes bending of the spring zone 44, 45 avoiding deterioration, for example in the form of crushing, of the or each element 40, 41 of anti-rotation mechanical interaction 40, 41 while allowing this or these to come into point contact with anti-rotation friction with said support S to achieve the anti-rotation function of the present invention.

Ainsi la pression de l'élément de fixation 3 est transmise à le ou chaque élément 40, 41 d'interaction mécanique anti-rotation et la fonction anti-rotation de la plaque anti rotation 4 est assurée quelque soit la nature du support S car la pression du ou de chaque élément 40, 41 d'interaction mécanique anti-rotation sur le support S est suffisante pour éviter la rotation de l'embase 1 autour de son axe X une fois le ou les élément(s) 40, 41 d'interaction mécanique anti-rotation inséré(s), ancré(s) ou enfoncé(s) dans le support S, le cas échéant via la cheville 5 (figure 11) ou lorsque le ou les élément(s) 40, 41 d'interaction mécanique anti-rotation viennent en pression avec friction anti-rotation sur le support S (figure 12).Thus the pressure of the fixing element 3 is transmitted to the or each element 40, 41 of anti-rotation mechanical interaction and the anti-rotation function of the anti-rotation plate 4 is ensured whatever the nature of the support S because the pressure of the or each element 40, 41 of anti-rotation mechanical interaction on the support S is sufficient to prevent the rotation of the base 1 around its axis X once the element (s) 40, 41 of mechanical anti-rotation interaction inserted, anchored or pressed into the support S, if necessary via the dowel 5 ( figure 11 ) or when the element (s) 40, 41 of anti-rotation mechanical interaction come into pressure with anti-rotation friction on the support S ( figure 12 ).

La présente invention a également pour objet un appareil plus particulièrement du type détecteur de fumée et/ou de gaz, ledit appareil comprenant un boîtier 2 (figure 12) et un dispositif de fixation, ledit dispositif de fixation comprenant une embase 1 permettant la fixation du boîtier 2 sur un support S et étant assemblée audit boîtier 2, ladite embase 1 comprenant une paroi 12 de fixation présentant deux faces 10, 11 opposées, à savoir une face externe 10 tournée vers ledit support S à l'état de fixation sur ledit support S et une face interne 11 tournée vers ledit boîtier 2.The present invention also relates to an apparatus more particularly of the smoke and / or gas detector type, said apparatus comprising a housing 2 ( figure 12 ) and a fixing device, said fixing device comprising a base 1 allowing the case 2 to be fixed on a support S and being assembled to said case 2, said base 1 comprising a fixing wall 12 having two opposite faces 10, 11, to namely an outer face 10 facing said support S in the state of attachment to said support S and an inner face 11 facing said housing 2.

Conformément à la présente invention, dans un tel appareil, ledit dispositif de fixation consiste en un dispositif de fixation selon la présente invention.According to the present invention, in such an apparatus, said fixing device consists of a fixing device according to the present invention.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par 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 and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims (12)

Dispositif de fixation pour appareil plus particulièrement du type détecteur de fumée et/ou de gaz, ledit dispositif de fixation comprenant une embase (1) de fixation permettant la fixation d'un boîtier dudit appareil sur un support (S) et étant apte à être assemblée audit boîtier (2), ladite embase (1) comprenant une paroi (12) de fixation présentant deux faces (10, 11) opposées, à savoir une face externe (10) tournée, à l'état de fixation de l'embase (1), vers ledit support (S) et une face interne (11) tournée vers ledit boîtier (2) à l'état de fixation de ce dernier sur l'embase (1), caractérisé en ce qu'il comprend en outre, d'une part, un élément de fixation (3) permettant de fixer ladite embase (1) au support (S) en un unique point de fixation par pression mécanique, ladite embase (1) comprenant un trou (13) de passage, traversant ladite paroi (12) de fixation, pour permettre le passage de l'élément de fixation (3) et sa fixation dans le support (S) et, d'autre part, des moyens anti-rotation (4) aptes et destinés, à l'état fixé de ladite embase (1) au support (S) par ledit élément de fixation (3), à empêcher un mouvement de rotation de l'embase (1) autour de l'axe (X) dudit trou (13) par un effet d'interaction mécanique entre au moins une partie (40, 41) desdits moyens anti-rotation (4) et le support (S) s'opposant audit mouvement de rotation relatif entre l'embase (1) et le support (S).Fixing device for an appliance more particularly of the smoke and / or gas detector type, said fixing device comprising a fixing base (1) allowing the fixing of a housing of said appliance on a support (S) and being able to be assembled to said housing (2), said base (1) comprising a fixing wall (12) having two opposite faces (10, 11), namely an external face (10) turned, in the state of fixing of the base (1), towards said support (S) and an internal face (11) turned towards said housing (2) in the state of attachment of the latter on the base (1), characterized in that it further comprises , on the one hand, a fixing element (3) making it possible to fix said base (1) to the support (S) at a single fixing point by mechanical pressure, said base (1) comprising a passage hole (13), passing through said fixing wall (12), to allow the passage of the fixing element (3) and its fixing in the support (S) and, on the other hand, means anti-rotation (4) capable and intended, in the fixed state of said base (1) to the support (S) by said fixing element (3), to prevent a rotational movement of the base (1) around the axis (X) of said hole (13) by a mechanical interaction effect between at least part (40, 41) of said anti-rotation means (4) and the support (S) opposing said relative rotational movement between the base (1) and the support (S). Dispositif de fixation, selon la revendication 1, caractérisé en ce que le trou (13) de passage est pratiqué au centre ou sensiblement au centre de la paroi (12) de fixation de l'embase (1).Fixing device according to Claim 1, characterized in that the passage hole (13) is made in the center or substantially in the center of the wall (12) for fixing the base (1). Dispositif de fixation, selon la revendication 1 ou la revendication 2, caractérisé en ce qu'il comprend en outre une cheville (5) d'assemblage mécanique apte à recevoir l'élément de fixation (3) pour fixer solidement ce dernier dans le support (S) par déformation mécanique de ladite cheville (5) sous l'effet de l'insertion de l'élément de fixation (3) dans cette dernière et en ce que ladite cheville (5) est intégrée dans la paroi (12) de fixation de l'embase (1) en prolongeant axialement le trou (13) de passage du côté de la face externe (10).Fixing device according to claim 1 or claim 2, characterized in that it further comprises a pin (5) of mechanical assembly suitable for receiving the fixing element (3) to firmly fix the latter in the support. (S) by mechanical deformation of said pin (5) under the effect of the insertion of the fixing element (3) in the latter and in that said pin (5) is integrated in the wall (12) of fixing the base (1) by axially extending the passage hole (13) on the side of the external face (10). Dispositif de fixation, selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les moyens anti-rotation (4) consistent en une plaque anti-rotation (4), de préférence une plaque anti-rotation métallique, appliquée et maintenue sur la face interne (11) ou la face externe (10) de l'embase (1) et comprenant au moins un élément (40, 41) d'interaction mécanique anti-rotation, par exemple en forme de griffe, de pointe ou d'ergot, s'étendant fonctionnellement du côté de la face externe (10) de la plaque anti-rotation (4), ladite plaque anti-rotation (4) comportant une ouverture (42) de passage traversante située en regard du trou (13) de passage pour permettre le passage de l'élément de fixation (3) à travers ladite plaque anti-rotation (4), le ou chaque élément (40, 41) d'interaction mécanique anti-rotation étant apte, lors de la fixation de l'embase (1) sur le support (S) et sous l'effet d'une pression exercée par l'élément de fixation (3) directement ou indirectement sur la plaque anti-rotation (4), à venir en pression contre le support (S) de sorte à pouvoir s'insérer ou s'enfoncer ou s'ancrer dans ledit support (S) ou à être en contact ponctuel avec friction anti-rotation avec ledit support (S).Fixing device according to any one of claims 1 to 3, characterized in that the anti-rotation means (4) consist of an anti-rotation plate (4), preferably a metal anti-rotation plate, applied and held on the internal face (11) or the external face (10) of the base (1) and comprising at least one element (40, 41) of anti-rotation mechanical interaction, for example in the form of a claw, point or lug, extending functionally from the side of the external face (10) of the anti-rotation plate (4), said anti-rotation plate (4) comprising a through-passage opening (42) located opposite the passage hole (13) to allow the passage of the fixing element (3) through said anti-rotation plate (4) , the or each element (40, 41) of anti-rotation mechanical interaction being suitable, when fixing the base (1) on the support (S) and under the effect of a pressure exerted by the fixing element (3) directly or indirectly on the anti-rotation plate (4), to come into pressure against the support (S) so as to be able to insert or sink or anchor d years said support (S) or to be in point contact with anti-rotation friction with said support (S). Dispositif de fixation, selon la revendication 4, caractérisé en ce que la plaque anti-rotation (4) est appliquée et maintenue sur la face interne (11) de l'embase (1) et en ce que la paroi (12) de fixation de l'embase (1) comprend au moins un orifice (14, 15) de passage traversant permettant lé passage de l'élément (40, 41) d'interaction mécanique anti-rotation (40, 41) à travers ledit orifice (14, 15) en émergeant de la face externe (10) de l'embase (1) pour pouvoir, lors de la fixation de l'embase (1) sur le support (S) et sous l'effet d'une pression exercée par l'élément de fixation (3) directement sur la plaque anti-rotation (4), venir en pression contre le support (S) de sorte à pénétrer, s'enfoncer, s'insérer ou s'ancrer dans ledit support (S) ou à être en contact ponctuel avec friction anti-rotation avec ledit support (S).Fixing device, according to claim 4, characterized in that the anti-rotation plate (4) is applied and held on the internal face (11) of the base (1) and in that the fixing wall (12) of the base (1) comprises at least one through-passage orifice (14, 15) allowing the passage of the element (40, 41) of anti-rotation mechanical interaction (40, 41) through said orifice (14 , 15) by emerging from the external face (10) of the base (1) to be able, when fixing the base (1) to the support (S) and under the effect of a pressure exerted by the fixing element (3) directly on the anti-rotation plate (4), pressurize against the support (S) so as to penetrate, sink, insert or anchor in said support (S) or to be in point contact with anti-rotation friction with said support (S). Dispositif de fixation, selon la revendication 4 ou la revendication 5, caractérisé en ce que le ou chaque élément de fixation (3) comprend une tête (30), du type tête de vis, apte à venir, lors de la fixation de l'embase (1) sur le support (S) soit, dans le cas où la plaque anti-rotation (4) est appliquée sur la face interne (11) de l'embase (1), en contact avec la plaque anti-rotation (4) pour exercer la pression directement sur cette dernière, soit, dans le cas où la plaque anti-rotation (4) est monté sur la face externe (10) de l'embase (1), en contact avec la face interne (11) de la paroi de fixation (12) de l'embase (1) pour assurer la pression indirectement sur la plaque anti-rotation (4).Fixing device according to claim 4 or claim 5, characterized in that the or each fixing element (3) comprises a head (30), of the screw head type, suitable for coming, during the fixing of the base (1) on the support (S) or, in the case where the anti-rotation plate (4) is applied to the internal face (11) of the base (1), in contact with the anti-rotation plate ( 4) to exert pressure directly on the latter, or, in the case where the anti-rotation plate (4) is mounted on the external face (10) of the base (1), in contact with the internal face (11) ) from the wall fixing (12) of the base (1) to ensure pressure indirectly on the anti-rotation plate (4). Dispositif de fixation, selon l'une quelconque des revendications 4 à 6, caractérisé en ce que la plaque anti-rotation (4) comprend une partie centrale (43) et au moins une partie de liaison (44, 45) élastiquement déformable et/ou flexible et/ou souple, pouvant réaliser une zone ressort, reliant le ou chaque élément 40, 41 d'interaction mécanique anti-rotation (40, 41) à la dite partie centrale (43) et disposée de telle sorte que, lors de la fixation de l'embase (1) sur le support (S), l'élément de fixation (3), le cas échéant sa tête (30), exerce la pression sur la partie centrale (43) et en ce que, dans le cas où la plaque anti-rotation (4) est appliquée et maintenue sur la face externe (10) de l'embase (1), ladite embase (1) comprend en outre au moins une cavité de réception (16, 17) pratiquée dans la face externe de l'embase (1) pour recevoir au moins la ou l'une des parties de liaison (44, 45) lors de sa déformation du fait de la résistance à l'enfoncement opposée par un support (S).Fixing device, according to any one of claims 4 to 6, characterized in that the anti-rotation plate (4) comprises a central part (43) and at least one elastically deformable and / or elastically deformable connecting part (44, 45) or flexible and / or flexible, capable of forming a spring zone, connecting the or each element 40, 41 of anti-rotation mechanical interaction (40, 41) to said central part (43) and arranged so that, when fixing the base (1) on the support (S), the fixing element (3), if necessary its head (30), exerts pressure on the central part (43) and in that , in the case where the anti-rotation plate (4) is applied and held on the outer face (10) of the base (1), said base (1) further comprises at least one receiving cavity (16, 17) made in the outer face of the base (1) to receive at least one or one of the connecting parts (44, 45) during its deformation due to the resistance to depression opposed by a support (S). Dispositif de fixation, selon l'une quelconque des revendications 4 à 7, caractérisé en ce que l'ouverture (42) de passage de la plaque anti-rotation (4) est pratiquée au centre de cette dernière.Fixing device according to any one of Claims 4 to 7, characterized in that the opening (42) for the passage of the anti-rotation plate (4) is made in the center of the latter. Dispositif de fixation, selon la revendication 8, caractérisé en ce que les éléments (40, 41) d'interaction mécanique anti-rotation sont positionnés de façon symétrique par rapport à l'ouverture (42) de passage.Fixing device according to Claim 8, characterized in that the elements (40, 41) of anti-rotation mechanical interaction are positioned symmetrically with respect to the passage opening (42). Dispositif de fixation, selon l'une quelconque des revendications 1 à 9, caractérisé en ce que l'embase est réalisée à partir d'une matière plastique.Fixing device according to any one of claims 1 to 9, characterized in that the base is made from a plastic material. Dispositif de fixation, selon l'une quelconque des revendications 1 à 10, caractérisé en ce que l'embase (1) présente une forme générale circulaire ou de disque.Fixing device according to any one of claims 1 to 10, characterized in that the base (1) has a generally circular or disc shape. Appareil plus particulièrement du type détecteur de fumée et/ou de gaz, ledit appareil comprenant un boîtier (2) et un dispositif de fixation, ledit dispositif de fixation comprenant une embase (1) permettant la fixation du boîtier (2) sur un support (S) et étant assemblée audit boîtier (2), ladite embase (1) comprenant une paroi (12) de fixation présentant deux faces (10, 11) opposées, à savoir une face externe (10) tournée vers ledit support (S) à l'état de fixation sur ledit support (S) et une face interne (11) tournée vers ledit boîtier (2), caractérisé en ce que ledit dispositif de fixation consiste en un dispositif de fixation selon l'une quelconque des revendications 1 à 11.Apparatus more particularly of the smoke and / or gas detector type, said apparatus comprising a housing (2) and a fixing device, said fixing device comprising a base (1) allowing the case (2) to be fixed on a support ( S) and being assembled to said housing (2), said base (1) comprising a fixing wall (12) having two opposite faces (10, 11), namely an external face (10) facing said support (S) in the state of attachment to said support (S) and an internal face (11) facing said housing (2), characterized in that said fastening device consists of a fastening device according to any one of claims 1 to 11.
EP20315248.3A 2020-05-19 2020-05-19 Attachment device for apparatus particularly such as a smoke and/or gas detector and such an appliance including said device Pending EP3913593A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20315248.3A EP3913593A1 (en) 2020-05-19 2020-05-19 Attachment device for apparatus particularly such as a smoke and/or gas detector and such an appliance including said device

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Application Number Priority Date Filing Date Title
EP20315248.3A EP3913593A1 (en) 2020-05-19 2020-05-19 Attachment device for apparatus particularly such as a smoke and/or gas detector and such an appliance including said device

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EP3913593A1 true EP3913593A1 (en) 2021-11-24

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015103486U1 (en) * 2015-07-02 2015-07-23 Sas Hager Security Housing for receiving an electrical installation device, preferably a smoke detector
FR3022970A1 (en) * 2014-06-26 2016-01-01 Finsecur SUPPORT PART FOR SUPPORTING A DEVICE, SMOKE DETECTOR AND NAIL EXTENSION FOR NOWING SUCH A SUPPORT PART
US20160345447A1 (en) * 2015-05-19 2016-11-24 Google Inc. Adjustable-angle mounting system for hazard detector
US10041919B1 (en) * 2017-06-15 2018-08-07 Robert Arnold Wood Housing for radon detectors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3022970A1 (en) * 2014-06-26 2016-01-01 Finsecur SUPPORT PART FOR SUPPORTING A DEVICE, SMOKE DETECTOR AND NAIL EXTENSION FOR NOWING SUCH A SUPPORT PART
US20160345447A1 (en) * 2015-05-19 2016-11-24 Google Inc. Adjustable-angle mounting system for hazard detector
DE202015103486U1 (en) * 2015-07-02 2015-07-23 Sas Hager Security Housing for receiving an electrical installation device, preferably a smoke detector
US10041919B1 (en) * 2017-06-15 2018-08-07 Robert Arnold Wood Housing for radon detectors

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