Smoke and / or carbon monoxide detector

Abstract

A smoke and / or carbon monoxide detector comprising a body (1) and a plate (2) for securing on a support such as a ceiling, the plate (2) and the body (1) of the detector comprising complementary and removable means (4) for securing one to the other. According to the invention, the plate (2) comprises a plurality of through-openings (3), distributed uniformly across the surface of the plate (2) in order to allow said detector (1) to be secured to the support.

Description

Description Title of the invention: Smoke and / or carbon monoxide detector Technical field

[0001] The present invention relates to a smoke and / or carbon monoxide detector, the attachment of which to a support is made simple and rapid. Prior art

[0002] In the prior art, smoke and / or carbon monoxide detectors are commonly used to ensure the safety of occupants in residential and commercial buildings. These devices are generally mounted on the ceiling or walls to detect the presence of smoke or carbon monoxide and to sound an alarm if detected.

[0003] Fixing these detectors to the ceiling or walls generally requires the use of screws and dowels, the number and positioning of which are specific to each manufacturer.

[0004] Therefore, when replacing a detector at the end of its life with a new model or a model from another brand, the user must make new holes and possibly use new screws to fix the new detector.

[0005] In summary, the prior art has disadvantages in terms of complexity and costs when replacing an existing smoke and / or carbon monoxide detector.

[0006] The prior art does not offer any simple and rapid solution for replacing a smoke and / or carbon monoxide detector at the end of its life. Statement of the invention

[0007] The objective of the present invention is to provide a smoke and / or carbon monoxide detector which is quick and easy to fix to the wall, particularly as a replacement for a detector at the end of its life.

[0008] For this purpose, a smoke and / or carbon monoxide detector has been developed comprising a body and a mounting plate on a support, such as a ceiling, the plate and the body of the detector comprising complementary and removable means of fixing to each other.

[0009] According to the invention, the plate comprises a plurality of through holes, regularly distributed over the surface of the plate, and in particular over the entire internal surface of the plate visible in a central direction orthogonal to the plane of the plate, to enable said detector to be fixed to the support, and in particular by means of screws passing through a few holes.

[0010] In particular, the detector according to the invention thus comprises a so-called universal fixing plate, so that when replacing a detector at the end of its life, it is possible to remove the detector and reuse the screws and the holes already made in the support to fix the detector according to the invention.

[0011] The distribution of the holes over the entire surface of the plate increases the chances of matching some of these holes with the positioning and number of holes made in the support.

[0012] The fixing is simple and quick, saving screw costs and the installation time is significantly reduced. It is no longer necessary to drill the support again to fix the detector according to the invention to replace a detector at the end of its life. The support is therefore not further damaged by making additional holes.

[0013] According to a particular embodiment, the plate comprises a peripheral rim projecting relative to the plane of the plate, engaged in a complementary groove provided in a bottom of the detector body.

[0014] This allows for a reliable and aesthetically pleasing assembly. The peripheral edge may also include through holes to allow the plate to be fixed to a support and maximize the chances of matching the fixing holes to existing holes when replacing a detector at the end of its life.

[0015] Preferably, the plate is circular, and the complementary fixing means are in the form of a turn locking system.

[0016] In this way, after fixing the plate to the support, fixing the detector body to the plate is simple and quick.

[0017] According to a particular embodiment of the turn locking system, a wall of the projecting rim of the plate comprises tabs projecting radially inwards, intended to engage in complementary notches provided in a corresponding wall of the groove in the bottom of the detector body.

[0018] The holes in the plate have a diameter between 3.5mm and 4.5mm, for example 4mm in order to adapt to the type of screws commonly used to fix a smoke and / or carbon monoxide detector.

[0019] To further maximize the chances of matching holes with existing holes in a mount when replacing a detector at the end of its life, the holes are spaced apart by a distance of between 2.5mm and 3.5mm, for example 3mm. Brief description of the drawings

[0020] Other characteristics and advantages of the present invention will emerge clearly from the following detailed description of a preferred embodiment of the smoke and / or carbon monoxide detector, given below, for informational and non-limiting purposes, with reference to the appended figures, in which:

[0021] [Fig. 1] is a perspective view from above of a smoke and / or carbon monoxide detector according to the invention.

[0022] [Fig. 2] is a view similar to that of Figure 1, seen from below.

[0023] [Fig. 3] is a view similar to that of Figure 2, without the plate.

[0024] [Fig. 4] is a perspective view of the mounting plate, seen from the inside face of the plate.

[0025] [Fig. 5] is a view of another embodiment of the detector plate according to the invention. Detailed description of the invention

[0026] With reference to figures 1 to 4, the invention relates to a smoke and / or carbon monoxide detector comprising a body (1) and a fixing plate (2). called universal, designed to be mounted on a support, such as a ceiling or a wall, by reusing the screws and holes existing in the support when replacing a detector at the end of its life, regardless of the model of detector to be replaced, the number and positioning of the holes.

[0027] For this purpose, the plate (2) comprises a plurality of openings (3), for example all identical, regularly distributed over the surface of the plate (2) to allow said detector to be fixed to the support.

[0028] Which holes (3) have a diameter between 3.5 mm and 4.5 mm, for example 4 mm, to accommodate different sizes of screws and dowels, and are preferably spaced from each other by a distance between 2.5 mm and 3.5 mm, for example 3 mm, to maximize the chances of matching existing drillings with holes (3) for fixing the plate (2).

[0029] In this way, after removing a detector at the end of its life, it is easy to fix the detector according to the invention since the holes (3) of the plate (2) can easily correspond with the holes already made in the support and be used, with the existing screws, to fix the plate (2) to the support.

[0030] More particularly, the centers of the circular-shaped holes (3) may be spaced apart from each other by a distance of between 6 mm and 7 mm, for example 6.5 mm. The circular-shaped holes are particularly preferable to oblong-shaped holes or other non-circular shapes, which do not allow the surface of the plate to be effectively gridded. The circular-shaped holes are distributed and arranged in an optimized manner in the plate, so as to increase the probability of making an hole coincide with holes already made in the support.

[0031] The detector body (1) is then attached to the plate (2) and the replacement operation is complete. Screw costs and drilling time are eliminated.

[0032] The body (1) of the detector and the plate (2) of course comprise complementary and removable fixing means (4) which allow the body (1) of the detector to be fixed quickly and easily to the plate (2), in the sense that the complementary fixing means (4) are removable from each other.

[0033] The plate (2) is preferably circular and the fixing means (4) may be in the form of a turn locking system, which allows the body (1) of the detector to be engaged and locked in position with a simple rotational movement.

[0034] According to the particular embodiment illustrated in the figures, the plate (2) comprises a peripheral rim (5) projecting from the plane of the plate (2), which engages in a complementary groove (6) located in the bottom of the detector (1). This rim (5) reinforces the fixing of the body (1) of the detector on the plate (2) and ensures a precise and secure adjustment.

[0035] In this configuration, a wall of the rim (5), for example the internal side wall, comprises tabs (4a) projecting radially inwards, which engage in complementary notches (4b) formed in a corresponding wall of the groove (6) of the bottom of the body (1) of the detector, to produce the turn locking system. Of course, the tabs can be produced in the detector and the notches in the plate without departing from the scope of the invention.

[0036] In order to maximize the chances of matching existing holes in a support when replacing a detector at the end of its life, with holes (3) for fixing the plate (2), the projecting edge (5) also includes through holes (3) allowing the plate (2) to be fixed to the support.

[0037] According to another embodiment, illustrated in Figure 5, the plate (2) also comprises two straight and aligned slots (7) extending on either side of the center of the plate. In the case of a circular plate, these slots (7) are therefore radial and positioned on either side of a central orifice. The transverse dimension of the slots (7) is between 3.5 mm and 4.5 mm, for example 4 mm, and the longitudinal dimension is between 25 and 35 mm, for example 30 mm.

[0038] The lights (7) are bordered by stiffening ribs (8a). Other ribs (8b) come to crisscross the internal surface of the plate (2), and a rib (8c) comes to border the central orifice.

[0039] In this embodiment, the peripheral rim (5) is hollow and also reinforced by radial ribs (8c).

[0040] In some variants, the plate (2) may have different shapes, such as square, rectangular or oval, to adapt to different configurations of detectors and supports. The complementary fixing means (4) may also vary, including clip, slide or screw systems, depending on specific needs.

[0041] The plate (2) may be made from a variety of materials, such as plastic, metal, or composites, depending on strength, durability, and cost requirements. Corrosion-resistant and flame-resistant materials may be preferred for use in potentially corrosive environments or in the presence of high temperatures.

[0042] In conclusion, the invention makes it possible to provide a smoke and / or carbon monoxide detector with a universal mounting plate aimed at facilitating and speeding up the installation and replacement of these safety devices.

Claims

Claims [Claims 1] Smoke and / or carbon monoxide detector comprising a body (1) and a plate (2) for fixing to a support, such as a ceiling, the plate (2) and the body (1) of the detector comprising means (4) for fixing to each other, complementary and removable, characterized in that the plate (2) comprises a plurality of openings (3), regularly distributed over the surface of the plate (2) to allow said detector to be fixed to the support. [Claims 2] Smoke and / or carbon monoxide detector according to claim 1, characterized in that the plate (2) comprises a peripheral rim (5) projecting relative to the plane of the plate (2), engaged in a complementary groove (6) formed in a bottom of the body (1) of the detector. [Claims 3] Smoke and / or carbon monoxide detector according to any one of the preceding claims, characterized in that the plate (2) is circular, and the fixing means (4) are in the form of a turn locking system. [Claims 4] Smoke and / or carbon monoxide detector according to claim 3, characterized in that a wall of the rim (5) projecting from the plate (2) comprises tabs (4a) projecting radially inwards, intended to engage in complementary notches (4b) formed in a corresponding wall of the groove (6) in the bottom of the body (1) of the detector. [Claims 5] Smoke and / or carbon monoxide detector according to claim 2, characterized in that the peripheral rim (5) also comprises openings (3) allowing the plate (2) to be fixed to a support. [Claims 6] Smoke and / or carbon monoxide detector according to any one of the preceding claims, characterized in that the orifices (3) have a diameter of between 3.5mm and 4.5mm, for example 4mm. [Claims 7] Smoke and / or carbon monoxide detector according to any one of the preceding claims, characterized in that the orifices (3) are spaced from each other by a distance of between 2.5mm and 3.5mm, for example 3mm. [Claims 8] Smoke and / or carbon monoxide detector according to any one of the preceding claims, characterized in that the plate (2) also comprises two straight lights (7) aligned with each other and extending on either side of a center of the plate.

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