FI98768C - Exit signpost - Google Patents

Description

98768

Exit signpost

The present application relates to a continuously illuminated signboard for the exits of a building, comprising a frame, light emitting diodes fixed to and perforating the rear surface of the frame, and light emitting diodes penetrating the housing.

It is already known to equip exit luminaires and signboards with standard incandescent lamps or fluorescent tubes. However, the problem with these is the short service life. As the exit lights must be switched on at all times, the light sources normally used in them burn out relatively quickly. Afterglow materials have also been used in the signboards, but these have the problem that without a light source they are visible for 15 short periods of time. In addition, the backlight material is poorly visible when the space begins to fill with smoke.

On the other hand, for example, luminaire boards and number plates are known from SE 8802967, GB 2 164189, DE 30 49 064, DE 36 36 347 or DE 38 43 480 and from U.S. Pat. No. 4,603,496 and 20 U.S. Pat. No. 4,854,062, in which the light emitting diodes form various light-emitting patterns. The operation of such devices is based on their continuous light-emitting property, which makes the pattern formed in the devices visible. However, in the event of an emergency, any operation independent of the power supply or otherwise suitable for emergency lighting is not achievable with such devices.

Instructions on the marking of exit routes used in Finland can be found in publication 30 of the Ministry of the Interior's Rescue Department "Instructions on sign and safety lighting and exit signs". In addition, Sf standards SFS 4148 and SFS 4640 have been published and presented in the Electricity Inspection Centre's publication E 598-83 part 2.

Signal lighting is defined as "lighting that indicates exit routes". In addition, "the sign lighting operates 98768 2 simultaneously with and independently of ordinary lighting." In addition to the signal lights, a continuously illuminated sign board is also used as signs if necessary.

The present invention eliminates the problems associated with the light sources of the signage 5 and provides a completely new solution.

The invention is characterized in that the body piercing light emitting diodes are arranged to illuminate the front surface of the body of the signboard, which comprises a pattern of post-illuminating material, and in that the housing piercing light emitting diodes are arranged as a downwardly directed white light emitting light source.

It is preferable to use a printed circuit board as a base for the control panel, to which the green light emitting diodes used as a source of forward light 15 are attached.

In addition, a light source may be used on the signboard to show the exit below, such as a doorway or stairwell. In this case, light-emitting diodes are used as the downward light source, which together or separately emit bright light.

The patterns permitted at the exits are shown in standard SFS 4148. The patterns can be implemented on the surface of the signboard by forming them on it or alternatively using a screen printing technique. The pattern can also be formed by using a sticker or stickers, or even by completely using a separate plate from the substrate, i.e. the circuit board, on which the pattern is formed. The exit path pattern can also be made of a backlit material.

The use of the light emitting diodes according to the invention emphasizes and improves the visibility of this exit path pattern.

The invention provides considerable advantages. Thus, the need to service the light source of the signage is greatly reduced because the light emitting diodes are almost eternal. The sign also withstands mechanical stress because it does not have easily breakable parts, such as glass parts.

The LED sign is very visible even in a smoky room. In addition, the light emitting diodes have a very low power consumption and thus load the emergency lighting backup electrical system, for example, to a very small extent. The LED emits only small amounts of thermal energy in use and is thus safe to install on almost any surface.

The signboard according to the invention is easy to install due to its low and simple structure.

The invention will now be examined in more detail with the aid of the accompanying drawings, in which Figure 1 shows a front view of one embodiment of the signboard, Figure 2 shows a side view of the signboard, Figure 3 shows a second embodiment of the signboard seen from the front, and Figure 4 shows a section of Figure 3 A - A along.

In the embodiment according to the figures, the frame of the guide panel 1 is a circuit board 2, on the back surface 4 of which light emitting diodes (LEDs) 6 are mounted so as to pass through holes 3 perforated in the circuit board 2, to the front surface of the lighting board. To protect the connection surface 5 on the circuit board or the surface 4, a control panel is provided with a mounting housing 11, inside which the connection surface remains. An exit path pattern 8 is formed on the front surface 7 of the circuit board, preferably using a screen printing technique 30. The figure of Fig. 8 and at the same time the other front surface of the figure are illuminated by light emitting diodes 6. The color of the light emitting diodes 6 used in the information board 1 is forward green. In addition to this forward-facing figure, downwardly directed and penetrating light emitting diodes 9, 98768, are mounted on the connection surface 5 of the circuit board 2, which illuminate the exit path below the signboard or its directional arrow.

The necessary electrical wiring 10 is introduced into the low housing structure 11 protecting the back surface 4 of the printed circuit board 2, i.e. the substrate 4.

The invention is not limited to the appended embodiment and not only to the use of an escape route, but many modifications are possible within the scope of the inventive idea defined by the appended claims. Thus, the present invention can be used to enhance any warning sign and to illuminate some particularly dangerous point in the work environment.

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Claims (2)

5 96768 5 l. A continuously illuminated signpost of the exits of the building, comprising a frame (2), light emitting diodes (6) fixed to and piercing the rear surface of the frame (4), and light emitting diodes (9) penetrating the housing (11), characterized in that the piercing light emitting diodes (6) of the body (2) are arranged to illuminate the front surface (7) of the signboard body comprising a pattern (8) of post-illuminating material and that the piercing light emitting diodes (9) of the housing (11) are arranged as a downward white light source. Signboard according to Claim 1, characterized in that the white light-emitting diodes (9) of the downward light source are green and red light-emitting diodes. 20 1. A signal signal plate (1) for a low voltage flasher and an underdog (2), a light emitting diode (6) and a flashing account and an anchor circuit for a single circuit (4) as well as a light emitting diode (9) (11), kännetecknad därav, att ljusdioderna (6) vilka är anordnade att genomborra under-laget (2) vilka är anordnade attlagets framsi-da (7) vilken omf attar en figur (8) i ett självlysande material, samt ljusdioderna (9) the use of non-compliant genocide oil (li) does not constitute an end in itself. A signal signal according to claim 1, as shown in claim 35, in which a light emitting diode (9) is provided with a light emitting diode and a light emitting diode.