FR3085464A1 - AUTONOMOUS SAFETY LIGHTING BLOCK - Google Patents

Abstract

This autonomous block of emergency lighting (1) comprises: ▪ a component support (2) integrating at least one lighting device of the bulb, LED type, etc. and an electrical circuit for supplying said corresponding lighting device; ▪ a base (9) integrating the component support (2), and intended to allow the fixing of said block, in particular on a wall or equivalent; ▪ a transparent cover or jar (10), attached to said base (9); ▪ a removable label (7) having a pictogram or an indication, lit by its rear face by said at least one lighting device, and positioned on the component support (2) between the base (9) and the cover (10) when the block is in the operational position. The component support (2) has on its upper face, at the level of which the said at least one lighting device emerges, removable means (5, 6) for receiving the label (7).

Description

AUTONOMOUS SAFETY LIGHTING BLOCK

FIELD OF THE INVENTION

The invention relates to an autonomous block of emergency lighting, more particularly intended to be installed in premises open to the public, in apartment buildings, etc.

The purpose of such signaling devices is to display luminous signage, and to automatically provide an auxiliary light source as beaconing or evacuation. They are also intended to serve as emergency lighting, more particularly in the event of a fire and in the event of failure of the lighting on the main supply network.

The presence of such devices is made mandatory by a number of standards in force. They are therefore widely used, for example positioned above emergency exits, in stairwells, along corridors etc.

PRIOR STATE OF THE ART

Conventionally, such an autonomous block of emergency lighting comprises a base receiving at least one lighting device proper, such as a bulb or an LED, and integrating the corresponding supply circuit of said bulb or of said LED. This base is conventionally covered with a transparent cover or glass.

Finally, a pictogram or “Emergency exit” type indication is positioned between the base and the cover; this indication is intended to be illuminated, therefore by its rear face, by the bulb or the LED. The support for this indication is either permanently fixed to a rigid plate, in turn secured to the base, or glued against the internal face of the cover.

Traditionally, such a device is autonomous, in the sense that the power supply for the emergency lighting comes either from batteries integrated in the base, these being maintained at a sufficient charge level by a charger connected to the mains. power supply, either from centralized sources of accumulator batteries supplying a set of lighting devices.

However, such self-contained emergency lighting units have drawbacks, the aforementioned support being capable of constituting an opaque mask, risking drastically affecting the ambient brightness, which is nevertheless required in emergency situations, and which may make it difficult to read the indications he carries. In addition, it may be necessary to make changes to signage, requiring to take off said support, or to carry out its separation, sometimes definitive from the base, which can quickly prove tedious, or even necessitate the change of the entire autonomous safety unit.

In order to overcome this drawback, it has been proposed in document FR 2 840 669 to use a label bearing the indications (pictograms or mentions), of removable nature, positioned on the internal face of a domed cover, said internal face comprising claws capable of receiving said label. Undoubtedly, the solution thus proposed solves the problem of interchangeability of the label. On the other hand, due to the domed shape of the cover, it may result from difficulties in positioning said label, and as a corollary of its readability due to the optical phenomena inherent in the particular shape of said cover. In addition, traces are likely to appear on the cover, likely to alter the visibility of the pictogram, and therefore contradictory with the desired result, in particular in the context of the implementation of safety blocks.

The present invention aims to propose an alternative solution which is more efficient and simpler to implement.

STATEMENT OF THE INVENTION

To this end, the invention proposes an autonomous block of emergency lighting comprising:

a component support incorporating at least one bulb, LED, etc. lighting device and an electrical supply circuit for said corresponding lighting device;

a base integrating the component support, intended to allow the fixing of said block, in particular on a wall or equivalent;

a transparent cover or glass, attached to said base;

a removable label presenting a pictogram or an indication, lit by its rear face by said at least one lighting device, and positioned on the component support between the base and the cover when the block is in the operational position.

According to the invention, the component support has on its upper face, at the level of which the said at least one lighting device emerges, means for receiving the label.

Typically, these means consist of claws formed on said upper face and capable of reversibly wedging said label, itself advantageously relatively rigid.

In other words, the invention consists in providing the removable means for receiving the label, no longer within the cover, but on the upper face of the removable support. In doing so, it drastically simplifies the setting of said label, because it is no longer dependent on the shape of the cover. In addition, the costs of making the block are reduced, since conventionally the cover or verrine is made of transparent plastic, and therefore typically of polycarbonate or polymethyl methacrylate, therefore expensive materials, while the component support itself is made of conventional plastic, significantly less expensive.

Advantageously, the cover or verrine is attached to the base by articulation of one of the edges which define it at the upper edge of the base, the other edge of the cover being clipped reversibly on the opposite upper edge of said base.

According to the invention, it can be envisaged to place on the upper face of the support comprising two labels positioned side by side, said upper face being provided with the number of prongs necessary to receive said labels, and being further positioned accordingly.

BRIEF DESCRIPTION OF THE FIGURES

The manner in which the invention can be carried out, and the advantages which result therefrom, will emerge more clearly from the example of embodiment which follows, given by way of nonlimiting indication with the support of the appended figures.

Figure 1 is a schematic perspective representation of the autonomous safety unit according to the invention with the cover open.

FIG. 2 is a schematic front view of the component support of FIG. 1.

Figure 3 is a schematic perspective view of a first embodiment of the component support of the autonomous safety unit of the invention.

Figure 4 is a view similar to Figure 3, of another embodiment of the component support of the autonomous safety unit of the invention.

DETAILED DESCRIPTION OF THE INVENTION

The autonomous safety unit of the invention is therefore shown diagrammatically in relation to FIG. 1. This unit (1) comprises a base (9), intended to allow the fixing of said unit, in particular on a wall. This base receives a component support (2) integrating an electrical circuit for the electrical supply of lighting device (s) (not shown). This power circuit incorporates an accumulator or batteries connected to the mains. These technical aspects relating to power supply are widely known, and do not form part of the present invention.

The component support (2) has an upper face (3), provided with a certain number of through orifices (4), emerging at the level of said upper face in a flared shape (8), typically concave with respect to said surface. upper (3), in order to optimize the illumination surface of the label (s) (7), intended to be received on said upper face. The design of the component support provided with the upper face is thus made so that the lighting device or devices, typically LEDs, are flush with the plane in which said upper face (3) is inscribed (FIG. 3), so not to interfere with the positioning of the label (s) (7) on the latter. In fact, the flared shape (8) not only optimizes the illumination of the label (s) (7), but also a partial emergence of said lighting devices without affecting the flatness of the reception area of the or labels (7).

According to a first embodiment (Figure 3) in which the upper face (3) is planar, the peripheral rim of the latter receives a number of claws (5). Additional claws (6) can also be provided along the median of said face, so as to allow reception and positioning of two pictograms (7).

These claws are intended to define a reversible receiving and holding space for one or, as in the present case, two pictograms (7) on the upper face (3) of the component support (2), as illustrated in FIGS. 1 and 2. These pictograms (7) are flat, rigid, and are therefore received on the upper surface (3) of the component support (2) without being affected during their reception by the aforementioned lighting devices.

Illustrated in Figure 1 the cover (10), transparent, hinged (11) on one of the upper edges of the base (9). In doing so, when the cover (10) is open, as illustrated in FIG. 1, the user has access to the upper face (3) of the component support (2), and can therefore, at leisure, interchange the labels. or pictograms (7). Said cover is then folded back onto the base, and is clipped onto the latter using elastic means (12) formed at the peripheral edge of said base.

According to a variant illustrated in FIG. 4, the upper face (3) of the component support (2) is not flat, but polyhedral, defining a concavity inside the component support. The constituent faces of this polyhedron favor the diffusion of the light generated by the lighting devices emerging at the level of the orifices (4) in the direction of the pictogram (s) (7), helping to optimize the function assigned to the safety block (1) .

We conceive of the elementary simplicity of setting up said pictograms or signage devices, by inserting them between the claws (5) and (6), inducing an extremely precise positioning and setting, incapable of affecting their later readability when the transparent cover (10), and in the example described articulated on the base (2), is closed on said base.

Said pictograms (7) are made of a translucent material in order to affect the luminosity of the autonomous lighting unit as little as possible, due to its obvious use in emergency conditions.

The autonomous safety unit of the invention also has the following advantages:

• it can work with the lid or the glass open;

• no trace remains on the lid or glass;

• great ease of mounting and positioning of pictograms.

Claims (7)

1. Self-contained emergency lighting unit (1) comprising: a component support (2) integrating at least one lighting device of the bulb, LED type, etc. and an electrical supply circuit for said corresponding lighting device; a base (9) integrating the component support (2), and intended to allow the fixing of said block, in particular on a wall or equivalent; a transparent cover or jar (10), attached to said base (9); a removable label (7) having a pictogram or an indication, illuminated by its rear face by said at least one lighting device, and positioned on the component support (2) between the base (9) and the cover (10) when the block is in the operational position, characterized in that the component support (2) has on its upper face (3), at the level of which the said at least one lighting device emerges, removable receiving means (5, 6) of the label (7). 2. Autonomous emergency lighting unit (1) according to claim 1, characterized in that the removable label receiving means (7) consist of claws formed on said upper face (3) and capable of wedging reversibly said label. 3. Autonomous emergency lighting unit (1) according to claim 2, characterized in that the claws are respectively positioned on the periphery and on the median of the upper face (3) of the component support (2). 4. Autonomous emergency lighting unit (1) according to one of claims 1 to 3, characterized in that the upper face (3) of the component support (2) is planar. 5. autonomous block of emergency lighting (1) according to one of claims 1 to 3, characterized in that the upper face (3) of the component support (2) is polyhedral, defining a concavity inside said support component. 6. Autonomous emergency lighting unit (1) according to one of claims 2 to 5, characterized in that the upper face (3) of the component support (2) is capable of receiving two labels (7) positioned side by side. side, said upper face being provided with the number of claws necessary to receive said labels, and being further positioned accordingly. 7. autonomous block of emergency lighting (1) according to one of claims 1 to 6, characterized in that the cover or glass (10) is attached to the base (2) by articulation (11) of one edges which define it at the upper edge of the base, the other edge of the cover being reversibly clipped onto the opposite upper edge of said base.