(19)
(11) EP 1 223 385 B1

(12) EUROPEAN PATENT SPECIFICATION

(45) Mention of the grant of the patent:
05.01.2005 Bulletin 2005/01

(21) Application number: 02075069.1

(22) Date of filing: 10.01.2002
(51) International Patent Classification (IPC)7F24C 7/00

(54)

Apparatus for simulating a fire

Vorrichtung zur Simulation eines Feuers

Dispositif pour la simulation d'un feu


(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

(30) Priority: 12.01.2001 NL 1017094

(43) Date of publication of application:
17.07.2002 Bulletin 2002/29

(73) Proprietor: EDCO Eindhoven B.V.
5657 EM Eindhoven (NL)

(72) Inventor:
  • Schurink, Peter A.
    7908 GC Hoogeveen (NL)

(74) Representative: Valkonet, Rutger et al
Algemeen Octrooi- en Merkenbureau P.O. Box 645
5600 AP Eindhoven
5600 AP Eindhoven (NL)


(56) References cited: : 
GB-A- 2 230 335
GB-A- 2 337 582
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description


    [0001] The invention relates to an apparatus for simulating a fire according to the preamble of claim 1.

    [0002] Such a fire simulation apparatus is known, from GB-A-2 337 582. The moving element creates all kind of alternating and/or fire simulation light patterns with the aid of the light source, which light patterns are projected onto the window via a number of mirrors.

    [0003] One drawback of such an apparatus is the fact that the created flame and/or fire simulation light patterns are of a recurring nature, so that the obtained flame and fire image does not look very true to nature to the user.

    [0004] The object of the invention is to overcome the above drawback and to provide a fire simulation apparatus by means of which it is possible to create a varied, true-to-nature flame and fire image which recurs less often.

    [0005] This aim is reached by the features of the characterising portion of claim 1.

    [0006] The dependent claims are directed to further preferred embodiments.

    [0007] According to the invention, a greatly varied, non-recurring and true-to-nature flame and fire image can in particular be obtained in that one endless carrier can be driven in vertical direction and another endless carrier can be driven in horizontal direction within the housing.

    [0008] The invention will now be explained in more detail with reference to a drawing, in which:

    Fig. 1a is a side elevation of one embodiment of an apparatus for simulating a fire according to the invention;

    Fig. 1b is a front view of the embodiment as shown in Fig. 1a;

    Fig. 1c shows another embodiment of a fire simulation apparatus according to the invention;

    Fig. 1d shows various partial views of a specific part of an apparatus according to the invention.

    Fig. 2a and Fig. 2b schematically show another embodiment of a fire simulation apparatus according to the invention.



    [0009] In Figs. 1a - 1c, like parts are numbered alike. In these figures, numeral 1 indicates a housing of an apparatus for simulating a fire, which housing is movable on wheels 2 in this embodiment. Thus, the user can easily move and position the fire simulating apparatus. Accommodated in housing 1 is a light source 4 as well as a generally transparent window 3, which also forms the front side of the apparatus. In accordance with the invention, a first element 9 and a further element 5 are fitted in the housing, which elements are each provided with flame and/or fire simulation patterns.

    [0010] In this embodiment, the further element 5 is made up of a flexible foil 5, for example a textile fabric or a plastic foil, which is fixed in the housing 1 with its upper edge 5a. As is shown in Fig. 1b, cuts in the shape of flame patterns 5b are formed in the bottom free edge of the foil 5. The foil 5 abuts against a driving element 6, which includes several projecting parts 6a, 6b and 6c in this embodiment. The textile fabric may be reinforced in those places where it makes contact with the projecting parts.

    [0011] The first element 9 is a transparent hollow cylinder (see Figs. 1b and 1c), which hollow cylinder is filled with a large number of reflective segments 10, which can have different colours. The colour composition that is used determines the simulated heat of the fire. As Fig. 1b shows, said reflective segments 10 may be either elongated or ribbon-shaped segments, or consist of reflective particles as shown in Fig. 1c.

    [0012] Both the element 5 and the element 9 are movably accommodated in the housing. To this end, an electric motor 12 is mounted in the housing, which rotates the cylinder 9 about its longitudinal axis, thus moving segments 10 that are present in the hollow cylinder 9. The driving element 6 for the first element 5 can be likewise be moved, via a driving belt 13 that is passed over the motor shaft 12, with the projecting parts 6a, 6b, 6c touching the freely suspended foil, so that a flickering effect is obtained. The hollow cylinder 9 and the driving element 6 can either be rotated in the same direction of rotation or in opposite directions of rotation by the motor 12.

    [0013] Since the light emitted by the light source 4 falls on both elements 5 and 9, a greatly varied, that is, non-recurring and consequently very true-to-nature flame and fire pattern is created by the combination of the "fluttering" foil 5 and the hollow cylinder 9 filled with reflective segments 10. This light pattern is projected onto the transparent window 3. A mirror 11 is disposed under the housing so as to obtain an additional diffused lighting effect.

    [0014] As a result of the rotation of the hollow cylinder 9, a greatly varied, i.e. "at random" reflection pattern of the incident light from the light source 4 through the hollow cylinder is obtained already by the use of the freely moving segments 10. A likewise very irregular and varied and thus true-to-nature flame pattern can be obtained by providing the driving element that abuts against the foil 5 with an irregular contact surface. Such an effect can be obtained, for example, by designing the projecting parts 6a, 6b with different lengths or by providing the driving element with an irregular cam pattern 7 or with irregular teeth 8. These embodiments are shown in Fig. 1d.

    [0015] Another embodiment of an apparatus for simulating a fire according to the invention is shown in Figs. 2a and 2b. The two elements 5 and 9 that are shown therein are endless carriers 5, 9 arranged over at least two drivable rollers 15a, 15b and 19a, 19b, respectively, which endless carriers 5, 9 can be driven by a motor in an analogous manner as in Figs. 1a - 1c.

    [0016] As is shown in the exploded view of Fig. 2b, the endless carrier 5 is made of a transparent foil provided with flame and/or fire simulation patterns 16, which may or may not be reflective. In this embodiment, the endless carrier is made of a non-transparent foil provided with transparent flame and/or fire simulation patterns 20. The endless carrier 5 can be driven in the vertical plane and the endless carrier 9 can be driven in the horizontal plane by suitably driving the motor 12. It is possible to project a greatly varied, non-recurring and consequently very true-to-nature flame and fire pattern onto the window 3 by driving the two endless carriers 5 and 9, preferably at different speeds.


    Claims

    1. Apparatus for simulating a fire, in particular for use in a fireplace, comprising a housing (1), in which at least one light source (4) is fitted for lighting at least one first element (9) provided with flame and/or fire simulation patterns, which first element (9) can be moved by means of a driving element (12), and at least one further movable element (5) provided with flame and/or fire simulation patterns and fitted in the housing, wherein at least one of said first or further movable element is built up of at least one flexible foil, and a window (3) at the front side of the housing onto which the created flame and/or fire simulation light patterns can be projected in use, characterized in that said flexible foil of said further movable element (5) abuts against a driving element (6).
     
    2. An apparatus for simulating a fire according to claim 1, characterized in that said foil of said further movable element (5) is fixed to the upper side of the housing with one edge (5a), wherein the downwardly extending free edge is provided with cuts (5b) in the shape of flame patterns and wherein said driving element (6) has an irregular contact surface (6a-6d, 7, 8).
     
    3. An apparatus for simulating a fire according to claim 1 or 2, characterized in that said driving element (6) comprises at least one projecting part (6a-6d, 7, 8).
     
    4. An apparatus for simulating a fire according to claim 2 or 3, characterized in that said driving element (6) comprises at least one gear (8) having irregular teeth.
     
    5. An apparatus for simulating a fire according to any one or more of the claims 2-4, characterized in that said further element (5) is built up of several flexible foils (5', 5", 5''') arranged one beside another, all foils abutting against said driving element (6, 6', 6", 6''').
     
    6. An apparatus for simulating a fire according to any one or more of the preceding claims, characterized in that the other element consists of a hollow, transparent cylinder (9) which is filled with a large number of reflective segments (10).
     
    7. An apparatus for simulating a fire according to claim 1, wherein the first element is an endless carrier (5) which is arranged over at least two drivable rollers (15a-15b), characterized in that the other element is likewise configured as an endless carrier (9) arranged over at least two drivable rollers (19a-19b).
     
    8. An apparatus for simulating a fire according to claim 7, characterized in that at least one endless carrier consists of a foil provided with a reflective or a non-reflective flame and/or fire simulation pattern (16).
     
    9. An apparatus for simulating a fire according to claim 7, characterized in that the other endless carrier consists of a non-transparent foil provided with transparent flame and/or fire simulation patterns (20).
     
    10. An apparatus for simulating a fire according to any one or more of the claims 7-9, characterized in that one endless carrier can be driven in vertical direction and another endless carrier can be driven in horizontal direction within the housing.
     
    11. An apparatus for simulating a fire according to any one or more of the preceding claims, characterized in that both said first element and said further element are driven by the same driving element (12, 13).
     


    Ansprüche

    1. Vorrichtung zum Simulieren eines Feuers, insbesondere zur Verwendung in einer offenen Feuerstelle, mit einem Gehäuse (1), in das mindestens eine Lichtquelle (4) zum Beleuchten mindestens eines ersten Elements (9) eingefügt ist, das mit flammen- und/oder feuersimulierenden Mustern versehen ist, wobei das erste Element (9) mittels eines Antriebsorgans (12) bewegt werden kann und wobei mindestens ein weiteres mit flammen- und/oder feuersimulierenden Mustern versehenes bewegbares Element (5) in das Gehäuse eingefügt ist und mindestens eines des ersten Elements oder des weiteren bewegbaren Elements aus mindestens einer flexiblen Folie zusammengesetzt ist, und mit einem Fenster (3) an einer Frontseite des Gehäuses, auf welches während der Verwendung die erzeugten flammen- und/oder feuersimulierenden Lichtmuster projeziert werden können, dadurch gekennzeichnet, daß die flexible Folie des bewegbaren Elements (5) an ein Antriebsorgang (6) anstößt.
     
    2. Vorrichtung zum Simulieren eines Feuers gemäß Anspruch 1, dadurch gekennzeichnet, daß die Folie des weiteren bewegbaren Elements (5) mit einem Rand (5a) an der oberen Seite des Gehäuses befestigt ist, der sich abwärts erstreckende freie Rand mit Schlitzen (5b) in Form von Flammenmustern versehen ist und worin das Antriebsorgan (6) eine unregelmäßige Kontaktoberfläche (6a-6d,7,8) aufweist.
     
    3. Vorrichtung zum Simulieren eines Feuers nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Antriebsorgan (6) mindestens einen vorspringenden Teil (6a-6d, 7, 8) aufweist.
     
    4. Vorrichtung zum Simulieren eines Feuers nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß das Antriebsorgan (6) mindestens ein Zahnrad (8) mit unregelmäßigen Zähnen aufweist.
     
    5. Vorrichtung zum Simulieren eines Feuers nach einem oder mehreren der Ansprüche 2 bis 4, dadurch gekennzeichnete, daß das weitere Element (5) aus mehreren flexiblen Folien (5',5 " ,5"') zusammengesetzt ist, die eines neben dem anderen angeordnet sind, und daß alle Folien an das Antriebsorgan (6,6',6',6''') anstoßen.
     
    6. Vorrichtung zum Simulieren eines Feuers nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das andere Element aus einem hohlen, transparenten Zylinder (9) besteht, welcher mit einer großen Anzahl von reflektierenden Abschnitten (10) gefüllt ist.
     
    7. Vorrichtung zum Simulieren eines Feuers nach Anspruch 1, wobei das erste Element ein endloser Träger (5) ist, der über mindestens zwei antreibbaren Trommeln (15a-15b) angeordnet ist, dadurch gekennzeichnet, daß das andere Element ähnlich als ein endloser, über mindestens zwei antreibbaren Trommeln (19a-19b) angeordneter Träger (9) konfiguriert ist.
     
    8. Vorrichtung zum Simulieren eines Feuers nach Anspruch 7, dadurch gekennzeichnet, daß mindestens ein endloser Träger aus einer reflektierenden oder einem nicht reflektierenden mit flammen- und/oder feuersimulierendem Muster (16) versehene Folie besteht.
     
    9. Vorrichtung zum Simulieren eines Feuers nach Anspruch 7, dadurch gekennzeichnet, daß der andere endlose Träger aus einer nicht transparenten Folie besteht, die mit transparenten flammen- und/oder feuersimulierenden Mustern (20) versehen ist.
     
    10. Vorrichtung zum Simulieren eines Feuers nach einem oder mehreren der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß innerhalb des Gehäuses ein endloser Träger in vertikaler Richtung angetrieben werden kann und der andere endlose Träger in horizontaler Richtung angetrieben werden kann.
     
    11. Vorrichtung zum Simulieren eines Feuers nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das erste Element und das weitere Element beide von demselben Antriebsorgang (12,13) angetrieben werden.
     


    Revendications

    1. Dispositif de simulation d'un feu, destiné, en particulier, à être utilisé dans une cheminée, comprenant un boîtier (1) dans lequel au moins une source de lumière (4) est agencée afin d'éclairer au moins un premier élément (9) présentant des motifs en flamme et/ou de simulation de feu, lequel premier élément (9) peut être déplacé au moyen d'un élément d'entraînement (12), et au moins un autre élément pouvant être déplacé (5) comportant des motifs en flamme et/ou de simulation de feu et étant agencé dans le boîtier, dans lequel au moins l'un desdits premier ou autre éléments pouvant être déplacés est constitué par au moins une feuille flexible, et une fenêtre (3) sur la face avant du boîtier sur laquelle les motifs en flamme et/ou de lumière de simulation de feu créés peuvent être projetés en utilisation, caractérisé en ce que ladite feuille flexible dudit autre élément pouvant être déplacé (5) est en butée contre un élément d'entraînement (6).
     
    2. Dispositif de simulation d'un feu selon la revendication 1, caractérisé en ce que ladite feuille dudit autre élément pouvant être déplacé (5) est fixée sur la face supérieure du boîtier avec un bord (5a), dans lequel le bord libre s'étendant vers le bas comporte des découpes (5b) de la forme de motifs en flamme et dans lequel ledit élément d'entraînement (6) présente une surface de contact irrégulière (6a à 6d, 7, 8).
     
    3. Dispositif de simulation d'un feu selon la revendication 1 ou 2, caractérisé en ce que ledit élément d'entraînement (6) comprend au moins une partie en saillie (6a à 6d, 7, 8).
     
    4. Dispositif de simulation d'un feu selon la revendication 2 ou 3, caractérisé en ce que ledit élément d'entraînement (6) comprend au moins un engrenage (8) présentant des dents irrégulières.
     
    5. Dispositif de simulation d'un feu selon l'une quelconque ou plusieurs des revendications 2 à 4, caractérisé en ce que ledit autre élément (5) est constitué par plusieurs feuilles flexibles (5', 5'', 5"') agencées l'une à côté de l'autre, toutes les feuilles venant en butée contre ledit élément d'entraînement (6, 6', 6'', 6''').
     
    6. Dispositif de simulation d'un feu selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce que l'autre élément consiste en un cylindre transparent creux (9) qui est rempli par un grand nombre de segments réfléchissants (10).
     
    7. Dispositif de simulation d'un feu selon la revendication 1, dans lequel le premier élément est un support sans fin (5) qui est agencé sur au moins deux rouleaux pouvant être entraînés (15a, 15b), caractérisé en ce que l'autre élément est, de la même manière, configuré comme un support sans fin (9) agencé sur au moins deux rouleaux pouvant être entraînés (19a, 19b).
     
    8. Dispositif de simulation d'un feu selon la revendication 7, caractérisé en ce qu'au moins un support sans fin consiste en une feuille présentant un motif en flamme réfléchissant ou non réfléchissant et/ou de simulation de feu (16).
     
    9. Dispositif de simulation d'un feu selon la revendication 7, caractérisé en ce que l'autre support sans fin consiste en une feuille non transparente comportant des motifs (20) en flamme et/ou de simulation de feu transparents.
     
    10. Dispositif de simulation d'un feu selon l'une quelconque ou plusieurs des revendications 7 à 9, caractérisé en ce qu'un support sans fin peut être entraîné dans une direction verticale et un autre support sans fin peut être entrainé dans une direction horizontale à l'intérieur du boîtier.
     
    11. Dispositif de simulation d'un feu selon l'une quelconque ou plusieurs des revendications précédentes, caractérisé en ce qu'à la fois ledit premier élément et ledit autre élément sont entraînés par le même élément d'entraînement (12, 13).
     




    Drawing