EP0637718B1 - Lighting lamp with double light focus - Google Patents

Lighting lamp with double light focus Download PDF

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Publication number
EP0637718B1
EP0637718B1 EP94410060A EP94410060A EP0637718B1 EP 0637718 B1 EP0637718 B1 EP 0637718B1 EP 94410060 A EP94410060 A EP 94410060A EP 94410060 A EP94410060 A EP 94410060A EP 0637718 B1 EP0637718 B1 EP 0637718B1
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EP
European Patent Office
Prior art keywords
bulb
contact
lighting lamp
electrical circuit
lamp according
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.)
Expired - Lifetime
Application number
EP94410060A
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German (de)
French (fr)
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EP0637718A1 (en
Inventor
Paul Petzl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zedel SAS
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Zedel SAS
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Publication date
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Publication of EP0637718A1 publication Critical patent/EP0637718A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L14/00—Electric lighting devices without a self-contained power source, e.g. for mains connection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0414—Arrangement of electric circuit elements in or on lighting devices the elements being switches specially adapted to be used with portable lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L14/00—Electric lighting devices without a self-contained power source, e.g. for mains connection
    • F21L14/02—Electric lighting devices without a self-contained power source, e.g. for mains connection capable of hand-held use, e.g. inspection lamps
    • F21L14/023—Electric lighting devices without a self-contained power source, e.g. for mains connection capable of hand-held use, e.g. inspection lamps having two or more, or different light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources

Definitions

  • the control member of the two switches is formed by a common switch having several successive selection positions, namely two stop positions, and two other positions for switching on the lighting.
  • the transition from a rest position to a commissioning position for the supply of a bulb takes place by an action of rotation of a step of the switch, which is constituted by a component having connected output pads electrically in the electric circuit supplying the bulbs.
  • the use of such a rotary switch involves multiple welds in the electrical circuit, which increases the assembly time and lamp manufacturing.
  • the lamp is used as a headlamp, it is also particularly difficult to identify with precision which of the two bulbs is on or off when the lamp is attached to the head of the user.
  • Document FR-A-2336629 describes a portable electric lamp comprising an operating button for adjusting the light beam, and a contact brush for controlling the ignition of the bulb.
  • the document CH-A-146987 relates to a lighting lamp for focusing the light beam, and comprising a switching lever intended to actuate a selector to power the bulb by means of an accumulator or a dynamo.
  • the object of the invention is to produce a lighting lamp with a double luminous focus having a simple control facilitating the mounting and connection of the electrical circuit.
  • Another object of the invention consists in authorizing the development of the light beam of one of the bulbs independently of the control of the electrical circuit.
  • the control member comprises a lever or lever coupled to the switching bar and capable of selectively occupying three distinct angular positions, said rest position being located halfway between the two active end of travel positions.
  • the manual action of one hand provides precise lighting control for one of the bulbs, while the other hand adjusts the light beam from the first bulb.
  • these two separate control and adjustment actions are carried out with ease when the lamp is worn on the head of the user.
  • an electric lighting lamp 10 with a double luminous focus is equipped with a housing 12 made of insulating material containing an intermediate plate 14 serving as a connection support for a pair of electric bulbs 16, 18 connected to an electrical circuit 20.
  • the housing 12 is composed of a casing 22 pivotally mounted on the axis 23 of a flange 24, and of a double reflector element 26 secured to the plate 14 by means of a ring 28 for fixing screwed onto the front part 22a of ellipsoidal shape of the casing 22 with the interposition of a transparent screen 29.
  • the double reflector element 26 comprises a first reflector 26a having a first central orifice 30 through which the first bulb 16 passes, and a second adjacent reflector 26b provided with a second central orifice 32 through which the second bulb 18 passes.
  • the electrical circuit 20 is electrically connected to an external energy source (not shown) by a power cable 34 passing through a socket 36 of the plate 14, in alignment with a hole 37 formed in the bottom of the casing 22.
  • the plate 14 is threaded from the front part 22a onto pads 36 for guiding and positioning coming from molding with the casing 22.
  • Each pad 36 comprises a leg fixed to the bottom of the casing 22 and extending substantially in a direction perpendicular to the screen 29.
  • the plate 14 carries a first connection base 38 for the reception of the base of the first bulb 16, and a second connection base 40 having two orifices 40a, 40b for the reception of a pair of pins 39, 41 of insertion of the second bulb 18.
  • a rotary control member or lever 42 with three positions is pivotally mounted in a bearing 44 of the casing 22 for alternately actuating two switches 46, 48 of the electrical circuit 20, controlling the lighting or respectively deactivation of the bulbs 16, 18
  • an adjustment button 50 intended to position the first base 38 relative to the first fixed reflector 26a for focusing the light beam emitted by the first bulb 16.
  • the cable 34 for supplying the electrical circuit 20 contains two conductors 130, 132 connected to the opposite polarity terminals of the DC power source.
  • the electrical circuit 20 is connected by inserting the ends 130a, 132a of the two conductors 130, 132 into the insulation displacement contacts 84, 116 of the first and third contact strips 76, 80 (see FIG. 7).
  • the first bulb 16 is surrounded by the first fixed reflector 26a of parabolic shape, and the base of the bulb 16 is screwed into the first connection base 38, which is movable in translation in the direction of the arrow F when the adjustment button 50 is actuated in rotation.
  • the surface of revolution of the second reflector 26b is smaller than that of the first reflector 26a of FIG. 4.
  • the second bulb 18 extends parallel to the first bulb 16 in a direction substantially perpendicular to the common transparent screen 29.
  • the pins 39, 41 for plugging in the second bulb 16 are inserted into the orifices 40a, 40b of the second connection base 40, which is secured to the plate 14.
  • the switch 48 is formed by an elastic contact blade cooperating with one of the pins 39 of the bulb 18 under the action of the control lever 42.
  • FIGS 6 and 7 show the rear part of the plate 14, equipped with the electrical circuit 20, the control lever 42 of the switches 46, 48, and the adjustment button 50.
  • the first connection base 38 includes a cylindrical socket 52 for supporting the first bulb 16, and a rack drive member 54 cooperating with a pinion 56 of the adjustment button 50.
  • the toothing of the pinion 56 extends along a sector representing a fraction of the circumference of the axis, so as to precisely define the length of the translational travel of the first base 38 when the button 50 is actuated in rotation between the two extreme adjustment positions.
  • the control lever 42 is provided with a switching bar 58 aligned with the pinion 56 of the button 50 along a transverse axis 59 parallel to the plane of the screen 29.
  • the two ends of the pinion 56 and the bar 58 of are separated from each other by a central space for housing the electrical circuit 20.
  • control lever 42 The structure of the control lever 42 is illustrated in detail in FIGS. 6, 7 and 11.
  • the lever 42 comprises a handle 60 for gripping perpendicular to the switching bar 58, and a latch 62 for locking the handle 60 in the central position, corresponding to the deactivation of the two switches 46, 48.
  • the rotation guide of the cylindrical bar 58 of the control lever 42 is effected by means of the bearing 44 of the casing 22, and of an intermediate U-shaped pad 64 carried by a protuberance 66 of the plate 14.
  • the bar 58 comprises a first means d actuation 68 and a second actuation means 70 cooperating respectively with elastic contact blades of the electrical circuit 20 to constitute the two switches 46, 48.
  • Each actuation means 68, 70 is formed by a cam arranged inside of a cavity 72, 74 of the bar 58.
  • the two cavities 72, 74 are staggered along the transverse axis 59 with a predetermined angular offset, authorizing the control of a single switch 46, 48 at the times, depending on whether the lever 42 is in one of the two working positions, located on either side of the central rest position.
  • the electrical circuit 20 illustrated in FIGS. 6 and 7 is composed of three contact elements 76, 78, 80, distinct individually represented in FIGS. 8 to 10.
  • Each contact element 76, 78, 80 is formed by an elastic conductive strip of specific structure, obtained by cutting and folding operations.
  • the first contact element 76 (FIG. 8) comprises an end piece 82 with insulation displacement contact 84, a first intermediate contact strip 86 intended to come into permanent engagement with the pin 41 of the second bulb 18, and a second contact strip. contact 88 constituting a part of the first switch 46.
  • the second contact element 78 (FIG. 9) is fitted with a ground ring 90 intended to be in permanent contact with the base of the first bulb 16 when it is inserted into the base 38, and with a third contact strip 92 cooperating with the second strip 88 by forming the first switch 46.
  • the central part 93 is provided with a fixing hole 94, and with a first deformation zone 96 with a slot 98 arranged between the ring 90 and the hole 94.
  • the slot 98 is delimited between two branches 100, 102 adjacent parallels extending perpendicular to the central part 93.
  • the third contact element 80 (FIG. 10) comprises a U-shaped end 104 having a fourth contact strip 106 intended to come into permanent contact with the isolated terminal of the first bulb 16, and a wing 108 for holding the end. 104 in the socket 52 of the first base 38.
  • a second deformation zone 110 with slit 112 joins the end 104 to a connection bracket 114 with insulation displacement contact 116.
  • a third deformation zone 118 is interposed between the bracket 114 and a fifth contact strip 120 forming part of the second switch 48.
  • the arrangement of the three contact elements 76, 78, 80 on the plate 14 is as follows:
  • the first contact element 76 is first inserted into a groove 122 (FIG. 7) of housing provided in an extension 124 of the plate 14.
  • the second contact element 78 is then secured to the plate 14 after positioning the central hole 94 on a fixed lug 126.
  • the ground ring 90 is housed in a slot in the first movable connection base 38, while the third contact strip 92 is arranged opposite the second contact strip 88.
  • the third contact element 80 is finally disposed above the other two contact elements 76, 78, by being fixed by its stirrup 114 on a hollow boss 128 secured to the plate 14.
  • the end 104 is engaged in the lumen of the first base 38 so as to position the fourth contact strip 106 opposite the ground ring 90.
  • the fifth contact strip 120 enters a cavity inside the protuberance 66 while being arranged opposite the pin 39 of the second bulb 18 when the latter is inserted into the second connection base 40.
  • the cable 34 for supplying the electrical circuit 20 contains two conductors 130, 132 connected to the opposite polarity terminals of the DC power source.
  • the electrical circuit 20 is connected by inserting the ends 130a, 132a of the two conductors 130, 132 into the contacts insulation displacement 84, 116 of the first and third contact strips 76, 80 (see FIG. 7).
  • the diagram ( Figure 12) of the electrical circuit 20 shows the insertion of the first switch 46 into the circuit of the ground ring 90 of the first bulb 16.
  • the connection point 132a is connected to the negative polarity of the source of food.
  • the second switch 48 for controlling the second bulb 18 is electrically connected to the connection point 130a which is at the opposite potential, corresponding to the positive polarity of the power source.
  • FIGS. 13A to 15C The operation of the double lighting system of the lamp 10 is illustrated in FIGS. 13A to 15C:
  • the second switch 48 is closed following the action of the second actuation means 70 of the bar 58 on the fifth contact strip 120.
  • the first switch 46 remains open permanently in this position of the lever 60.
  • the second bulb 18 is on, while the first bulb 16 is off.
  • the light beam emitted by the first bulb 16 is focused by means of the rotary adjustment button 50, after closing the first switch 46 in position 1 of the lever 42.
  • the button 50 is rotated in the direction of arrow F1 to drive the first base 38 in the direction of approximation with the first reflector 26a.
  • the reverse adjustment is made in FIG. 17 by turning the button 50 in the opposite direction (arrow F2), while keeping the lever 42 in the same position 1.
  • the rotary movement of the button 50 progressively moves the first base 38 from the first reflector 26a, and modifies the width of the light beam compared to the previous setting in FIG. 16.
  • the choice of lighting the lamps 16, 18 depends on the use and the autonomy desired by the user.
  • the first lamp 16 generally has a higher power than that of the second lamp 18. The lighting of the first lamp is therefore better, but at the expense of consumption electric, and the battery or accumulator time of the energy source.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)

Description

L'invention est relative à une lampe d'éclairage électrique à double foyer lumineux logé dans un boîtier, et renfermant:

  • une première ampoule montée dans un premier socle de raccordement,
  • une deuxième ampoule insérée dans un deuxième socle de raccordement, en s'étendant parallèlement à la première ampoule,
  • un circuit électrique équipé d'un organe de commande de deux interrupteurs, lesquels sont respectivement connectés en série avec lesdites première et deuxième ampoules ,
  • un élément à réflecteur et à écran transparent pour la transmission du faisceau lumineux émis par chacune desdites ampoules,
  • une platine réalisée en matériau isolant pour le support des deux socles de raccordement et du circuit électrique,
  • une barre de commutation dudit organe de commande ayant deux moyens d'actionnement échelonnés le long d'un axe transversal, et coopérant alternativement avec des lamelles de contact constitutives du premier et du deuxième interrupteurs pour piloter l'extinction ou l'allumage des ampoules selon que l'organe de commande se trouve dans une position de repos, ou une position active.
The invention relates to an electric lighting lamp with a luminous double focus housed in a housing, and containing:
  • a first bulb mounted in a first connection base,
  • a second bulb inserted into a second connection base, extending parallel to the first bulb,
  • an electrical circuit equipped with a control member for two switches, which are respectively connected in series with said first and second bulbs,
  • a reflector and transparent screen element for transmitting the light beam emitted by each of said bulbs,
  • a plate made of insulating material for supporting the two connection bases and the electrical circuit,
  • a switching bar of said control member having two actuation means staggered along a transverse axis, and cooperating alternately with contact strips constituting the first and second switches to control the switching off or switching on of the bulbs according to that the control member is in a rest position, or an active position.

Dans une lampe connue du genre mentionné, l'organe de commande des deux interrupteurs est formé par un commutateur commun ayant plusieurs positions successives de sélection, à savoir deux positions d'arrêt, et deux autres positions de mise en service de l'éclairage. Le passage d'une position de repos à une position de mise en service pour l'alimentation d'une ampoule s'opère par une action de rotation d'un pas du commutateur, lequel est constitué par un composant ayant des plots de sortie connectés électriquement dans le circuit électrique d'alimentation des ampoules. L'usage d'un tel commutateur rotatif implique de multiples soudures dans le circuit électrique, ce qui augmente le temps de montage et de fabrication de la lampe. Dans le cas où la lampe est utilisée comme lampe frontale, il est d'autre part particulièrement malaisé d'identifier avec précision laquelle des deux ampoules est allumée ou éteinte lorsque la lampe se trouve fixée sur la tête de l'utilisateur.In a known lamp of the kind mentioned, the control member of the two switches is formed by a common switch having several successive selection positions, namely two stop positions, and two other positions for switching on the lighting. The transition from a rest position to a commissioning position for the supply of a bulb takes place by an action of rotation of a step of the switch, which is constituted by a component having connected output pads electrically in the electric circuit supplying the bulbs. The use of such a rotary switch involves multiple welds in the electrical circuit, which increases the assembly time and lamp manufacturing. In the case where the lamp is used as a headlamp, it is also particularly difficult to identify with precision which of the two bulbs is on or off when the lamp is attached to the head of the user.

Dans un mécanisme décrit dans le document US-A 4 336 579, le même organe d'actionnement commande les deux interrupteurs des ampoules, et le mouvement en translation de l'ampoule à foyer réglable. Une telle commande nécessite un débattement angulaire important.In a mechanism described in document US-A 4,336,579, the same actuating member controls the two light bulb switches, and the translational movement of the adjustable focus bulb. Such a command requires significant angular movement.

Le document FR-A-2336629 décrit une lampe électrique portative comportant un bouton de manoeuvre pour le réglage du faisceau lumineux, et un balai de contact pour la commande d'allumage de l'ampoule.Document FR-A-2336629 describes a portable electric lamp comprising an operating button for adjusting the light beam, and a contact brush for controlling the ignition of the bulb.

Le document CH-A-146987 se rapporte à une lampe d'éclairage pour focaliser le faisceau lumineux, et comprenant un levier de commutation destiné à actionner un sélecteur pour alimenter l'ampoule au moyen d'un accumulateur ou d'une dynamo.The document CH-A-146987 relates to a lighting lamp for focusing the light beam, and comprising a switching lever intended to actuate a selector to power the bulb by means of an accumulator or a dynamo.

L'objet de l'invention consiste à réaliser une lampe d'éclairage à double foyer lumineux ayant une commande simple facilitant le montage et le raccordement du circuit électrique.The object of the invention is to produce a lighting lamp with a double luminous focus having a simple control facilitating the mounting and connection of the electrical circuit.

Un autre objet de l'invention consiste à autoriser la mise au point du faisceau lumineux d'une des ampoules indépendamment de la commande du circuit électrique.Another object of the invention consists in authorizing the development of the light beam of one of the bulbs independently of the control of the electrical circuit.

La lampe selon l'invention est caractérisée en ce que:

  • ladite platine subdivise l'intérieur du boîtier en un premier compartiment antérieur de réception des ampoules, et un deuxième compartiment postérieur de logement du circuit électrique,
  • ladite barre de commutation est agencée dans le deuxième compartiment en étant montée à rotation dans un palier sur l'une des faces latérales du boîtier du côté de la deuxième ampoule à foyer fixe,
  • un bouton de réglage est situé à l'opposé de l'organe de commande, et est destiné à déplacer le premier socle de raccordement pour focaliser le faisceau lumineux émis par la première ampoule,
  • et le circuit électrique comporte une pluralité d'éléments de contact en forme de lames interconnectées, ayant au moins une zone de liaison déformable agencée entre le premier socle mobile de raccordement et les deux lamelles de contacts mobiles des interrupteurs, pour assurer la continuité électrique lors de la rotation du bouton de réglage.
The lamp according to the invention is characterized in that:
  • said plate subdivides the interior of the housing into a first anterior compartment for receiving the bulbs, and a second posterior compartment for housing the electrical circuit,
  • said switch bar is arranged in the second compartment by being rotatably mounted in a bearing on one of the side faces of the housing on the side of the second fixed-focus bulb,
  • an adjustment button is located opposite the control member, and is intended to move the first connection base to focus the light beam emitted by the first bulb,
  • and the electrical circuit comprises a plurality of contact elements in the form of interconnected blades, having at least one deformable connection zone arranged between the first movable connection base and the two movable contact strips of the switches, to ensure electrical continuity during the rotation of the adjustment knob.

L'organe de commande comporte un levier ou manette accouplée à la barre de commutation et susceptible d'occuper sélectivement trois positions angulaires distinctes, ladite position de repos étant située à mi-course entre les deux positions actives de fin de course.The control member comprises a lever or lever coupled to the switching bar and capable of selectively occupying three distinct angular positions, said rest position being located halfway between the two active end of travel positions.

L'action manuelle d'une main assure la commande d'allumage précise de l'une des ampoules, tandis que l'autre main permet d'ajuster le faisceau lumineux de la première ampoule. En cas d'usage d'une lampe frontale, ces deux actions distinctes de commande et d'ajustage s'effectuent avec facilité lors du port de la lampe sur la tête de l'utilisateur.The manual action of one hand provides precise lighting control for one of the bulbs, while the other hand adjusts the light beam from the first bulb. When using a headlamp, these two separate control and adjustment actions are carried out with ease when the lamp is worn on the head of the user.

Pour le transport de la lampe dans un sac ou dans une poche, il suffit de bloquer en rotation l'organe de commande en enfonçant un loquet vers une position de verrouillage.To transport the lamp in a bag or in a pocket, it suffices to block the control member in rotation by pushing a latch towards a locking position.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode de réalisation de l'invention, donné à titre d'exemple non limitatif, et représenté aux dessins annexés dans lesquels :

  • la figure 1 est une vue éclatée en perspective de la lampe selon l'invention ;
  • la figure 2 représente une vue de face de la lampe ;
  • la figure 3 représente une vue de face de la lampe après enlèvement des ampoules et de l'ensemble réflecteur ;
  • les figures 4 et 5 sont des vues en coupe selon les lignes 4-4 et 5-5 respectives de la figure 2 ;
  • les figures 6 et 7 représentent des vues en perspective sous deux angles différents de la partie arrière de la platine équipée du circuit électrique ;
  • la figure 8 est une vue en perspective du premier élément de contact du circuit électrique ;
  • la figure 9 est une vue en perspective du deuxième élément de contact ;
  • la figure 10 est une vue en perspective du troisième élément de contact ;
  • la figure 11 représente une vue en perspective à l'échelle agrandie de l'organe de commande des deux interrupteurs ;
  • la figure 12 montre le schéma électrique de la lampe ;
  • les figures 13A, 13B, 13C montrent chacune une vue de profil de la figure 2 lorsque l'organe de commande des interrupteurs se trouve respectivement dans la position 0 de repos, dans la position 2 active, et dans la position 1 active ;
  • les figures 14A, 14B, 14C sont des vues en coupe selon la ligne 14a-14a de la figure 7 respectivement dans les positions précitées de l'organe de commande ;
  • les figures 15A, 15B, 15C sont des vues en coupe selon la ligne 15a-15a de la figure 7 respectivement dans les positions précitées de l'organe de commande ;
  • les figures 16 et 17 montrent des vues de détails en perspective du dispositif de réglage du faisceau lumineux de la première ampoule, le dispositif étant représenté dans deux positions différentes.
Other advantages and characteristics will emerge more clearly from the description which follows of an embodiment of the invention, given by way of nonlimiting example, and represented in the appended drawings in which:
  • Figure 1 is an exploded perspective view of the lamp according to the invention;
  • Figure 2 shows a front view of the lamp;
  • Figure 3 shows a front view of the lamp after removal of the bulbs and the reflector assembly;
  • Figures 4 and 5 are sectional views along the respective lines 4-4 and 5-5 of Figure 2;
  • Figures 6 and 7 show perspective views from two different angles of the rear part of the plate equipped with the electrical circuit;
  • Figure 8 is a perspective view of the first contact element of the electrical circuit;
  • Figure 9 is a perspective view of the second contact element;
  • Figure 10 is a perspective view of the third contact element;
  • FIG. 11 represents a perspective view on an enlarged scale of the control member of the two switches;
  • Figure 12 shows the electrical diagram of the lamp;
  • FIGS. 13A, 13B, 13C each show a profile view of FIG. 2 when the switch control member is respectively in the rest position 0, in the active position 2, and in the active position 1;
  • Figures 14A, 14B, 14C are sectional views along line 14a-14a of Figure 7 respectively in the above positions of the control member;
  • Figures 15A, 15B, 15C are sectional views along line 15a-15a of Figure 7 respectively in the above positions of the control member;
  • Figures 16 and 17 show detail views in perspective of the device for adjusting the light beam of the first bulb, the device being shown in two different positions.

En référence aux figures 1 à 3, une lampe 10 d'éclairage électrique à double foyer lumineux est équipé d'un boîtier 12 en matériau isolant renfermant une platine 14 intercalaire servant de support de raccordement à une paire d'ampoules 16, 18 électriques raccordées à un circuit électrique 20. Le boîtier 12 est composé d'un carter 22 monté à pivotement sur l'axe 23 d'un flasque 24, et d'un élément à double réflecteur 26 solidarisé à la platine 14 au moyen d'une bague 28 de fixation vissée sur la partie frontale 22a de forme ellipsoïdale du carter 22 avec interposition d'un écran 29 transparent.With reference to FIGS. 1 to 3, an electric lighting lamp 10 with a double luminous focus is equipped with a housing 12 made of insulating material containing an intermediate plate 14 serving as a connection support for a pair of electric bulbs 16, 18 connected to an electrical circuit 20. The housing 12 is composed of a casing 22 pivotally mounted on the axis 23 of a flange 24, and of a double reflector element 26 secured to the plate 14 by means of a ring 28 for fixing screwed onto the front part 22a of ellipsoidal shape of the casing 22 with the interposition of a transparent screen 29.

L'élément à double réflecteur 26 comporte un premier réflecteur 26a ayant un premier orifice 30 central traversé par la première ampoule 16, et un deuxième réflecteur 26b adjacent muni d'un deuxième orifice 32 central traversé par la deuxième ampoule 18.The double reflector element 26 comprises a first reflector 26a having a first central orifice 30 through which the first bulb 16 passes, and a second adjacent reflector 26b provided with a second central orifice 32 through which the second bulb 18 passes.

Le circuit électrique 20 est branché électriquement à une source d'énergie extérieure (non représentée) par un câble d'alimentation 34 traversant une douille 36 de la platine 14, en alignement avec un trou 37 ménagé dans le fond du carter 22. La platine 14 est enfilée depuis la partie frontale 22a sur des plots 36 de guidage et de positionnement venant de moulage avec le carter 22. Chaque plot 36 comprend une jambe fixée au fond du carter 22 et s'étendant sensiblement selon une direction perpendiculaire à l'écran 29. La platine 14 porte un premier socle de raccordement 38 pour la réception du culot de la première ampoule 16, et un deuxième socle de raccordement 40 ayant deux orifices 40a, 40b pour la réception d'une paire de broches 39, 41 d'embrochage de la deuxième ampoule 18.The electrical circuit 20 is electrically connected to an external energy source (not shown) by a power cable 34 passing through a socket 36 of the plate 14, in alignment with a hole 37 formed in the bottom of the casing 22. The plate 14 is threaded from the front part 22a onto pads 36 for guiding and positioning coming from molding with the casing 22. Each pad 36 comprises a leg fixed to the bottom of the casing 22 and extending substantially in a direction perpendicular to the screen 29. The plate 14 carries a first connection base 38 for the reception of the base of the first bulb 16, and a second connection base 40 having two orifices 40a, 40b for the reception of a pair of pins 39, 41 of insertion of the second bulb 18.

Un organe ou levier de commande 42 rotatif à trois positions est monté à pivotement dans un palier 44 du carter 22 pour actionner alternativement deux interrupteurs 46, 48 du circuit électrique 20, pilotant l'éclairage ou la mise hors service respectivement des ampoules 16, 18. A l'opposé du levier de commande 42 se trouve un bouton de réglage 50 destiné à positionner le premier socle 38 par rapport au premier réflecteur 26a fixe pour focaliser le faisceau lumineux émis par la première ampoule 16.A rotary control member or lever 42 with three positions is pivotally mounted in a bearing 44 of the casing 22 for alternately actuating two switches 46, 48 of the electrical circuit 20, controlling the lighting or respectively deactivation of the bulbs 16, 18 Opposite the control lever 42 is an adjustment button 50 intended to position the first base 38 relative to the first fixed reflector 26a for focusing the light beam emitted by the first bulb 16.

Le câble 34 d'alimentation du circuit électrique 20 renferme deux conducteurs 130, 132 reliés aux bornes de polarités opposées de la source d'énergie à courant continu. Le raccordement du circuit électrique 20 s'opère par insertion des extrémités 130a, 132a des deux conducteurs 130, 132 dans les contacts autodénudants 84, 116 des première et troisième lamelles de contact 76, 80 (voir figure 7).The cable 34 for supplying the electrical circuit 20 contains two conductors 130, 132 connected to the opposite polarity terminals of the DC power source. The electrical circuit 20 is connected by inserting the ends 130a, 132a of the two conductors 130, 132 into the insulation displacement contacts 84, 116 of the first and third contact strips 76, 80 (see FIG. 7).

Sur la figure 4, la première ampoule 16 est entourée par le premier réflecteur 26a fixe de forme parabolique, et le culot de l'ampoule 16 est vissé dans le premier socle de raccordement 38, lequel est mobile en translation dans la direction de la flèche F lors de l'actionnement en rotation du bouton de réglage 50.In FIG. 4, the first bulb 16 is surrounded by the first fixed reflector 26a of parabolic shape, and the base of the bulb 16 is screwed into the first connection base 38, which is movable in translation in the direction of the arrow F when the adjustment button 50 is actuated in rotation.

En référence à la figure 5, la surface de révolution du deuxième réflecteur 26b est plus petite que celle du premier réflecteur 26a de la figure 4. La deuxième ampoule 18 s'étend parallèlement à la première ampoule 16 selon une direction sensiblement perpendiculaire à l'écran 29 transparent commun. Les broches 39, 41 d'embrochage de la deuxième ampoule 16 sont insérées dans les orifices 40a, 40b du deuxième socle de raccordement 40, lequel est assujetti à la platine 14. L'interrupteur 48 est formé par une lame de contact élastique coopérant avec l'une des broches 39 de l'ampoule 18 sous l'action du levier de commande 42.With reference to FIG. 5, the surface of revolution of the second reflector 26b is smaller than that of the first reflector 26a of FIG. 4. The second bulb 18 extends parallel to the first bulb 16 in a direction substantially perpendicular to the common transparent screen 29. The pins 39, 41 for plugging in the second bulb 16 are inserted into the orifices 40a, 40b of the second connection base 40, which is secured to the plate 14. The switch 48 is formed by an elastic contact blade cooperating with one of the pins 39 of the bulb 18 under the action of the control lever 42.

Les figures 6 et 7 représentent la partie postérieure de la platine 14, équipée du circuit électrique 20, du levier de commande 42 des interrupteurs 46, 48, et du bouton 50 de réglage.Figures 6 and 7 show the rear part of the plate 14, equipped with the electrical circuit 20, the control lever 42 of the switches 46, 48, and the adjustment button 50.

Le premier socle de raccordement 38 comporte une douille 52 cylindrique de support de la première ampoule 16, et un organe d'entraînement à crémaillère 54 coopérant avec un pignon 56 du bouton 50 de réglage. La denture du pignon 56 s'étend le long d'un secteur représentant une fraction de la circonférence de l'axe, de manière à définir avec précision la longueur de la course en translation du premier socle 38 lorsque le bouton 50 est actionné en rotation entre les deux positions extrêmes de réglage.The first connection base 38 includes a cylindrical socket 52 for supporting the first bulb 16, and a rack drive member 54 cooperating with a pinion 56 of the adjustment button 50. The toothing of the pinion 56 extends along a sector representing a fraction of the circumference of the axis, so as to precisely define the length of the translational travel of the first base 38 when the button 50 is actuated in rotation between the two extreme adjustment positions.

Le levier de commande 42 est muni d'une barre 58 de commutation alignée avec le pignon 56 du bouton 50 le long d'un axe 59 transversal parallèle au plan de l'écran 29. Les deux bouts du pignon 56 et de la barre 58 de commutation sont séparés l'un de l'autre par un espace central de logement du circuit électrique 20.The control lever 42 is provided with a switching bar 58 aligned with the pinion 56 of the button 50 along a transverse axis 59 parallel to the plane of the screen 29. The two ends of the pinion 56 and the bar 58 of are separated from each other by a central space for housing the electrical circuit 20.

La structure du levier de commande 42 est illustré en détail aux figures 6, 7 et 11.The structure of the control lever 42 is illustrated in detail in FIGS. 6, 7 and 11.

Le levier 42 comporte une manette 60 de préhension perpendiculaire à la barre de commutation 58, et un loquet 62 de verrouillage de la manette 60 dans la position centrale, correspondant à la mise hors circuit des deux interrupteurs 46, 48. Le guidage en rotation de la barre 58 cylindrique du levier de commande 42 s'effectue au moyen du palier 44 du carter 22, et d'un coussinet 64 intermédiaire en forme de U porté par une protubérance 66 de la platine 14. La barre 58 comprend un premier moyen d'actionnement 68 et un deuxième moyen d'actionnement 70 coopérant respectivement avec des lames de contacts élastiques du circuit électrique 20 pour constituer les deux interrupteurs 46, 48. Chaque moyen d'actionnement 68, 70 est formé par une came agencée à l'intérieur d'une cavité 72, 74 de la barre 58. Les deux cavités 72, 74 sont échelonnées le long de l'axe 59 transversal avec un décalage angulaire prédéterminé, autorisant la commande d'un seul interrupteur 46, 48 à la fois, selon que le levier 42 se trouve dans l'une des deux positions de travail, situées de part et d'autre de la position centrale de repos.The lever 42 comprises a handle 60 for gripping perpendicular to the switching bar 58, and a latch 62 for locking the handle 60 in the central position, corresponding to the deactivation of the two switches 46, 48. The rotation guide of the cylindrical bar 58 of the control lever 42 is effected by means of the bearing 44 of the casing 22, and of an intermediate U-shaped pad 64 carried by a protuberance 66 of the plate 14. The bar 58 comprises a first means d actuation 68 and a second actuation means 70 cooperating respectively with elastic contact blades of the electrical circuit 20 to constitute the two switches 46, 48. Each actuation means 68, 70 is formed by a cam arranged inside of a cavity 72, 74 of the bar 58. The two cavities 72, 74 are staggered along the transverse axis 59 with a predetermined angular offset, authorizing the control of a single switch 46, 48 at the times, depending on whether the lever 42 is in one of the two working positions, located on either side of the central rest position.

Le circuit électrique 20 illustré sur les figures 6 et 7 est composé de trois éléments de contacts 76, 78, 80, distincts individuellement représentés sur les figures 8 à 10. Chaque élément de contact 76, 78, 80 est formé par une lame conductrice élastique de structure spécifique, obtenue par des opérations de découpage et pliage.The electrical circuit 20 illustrated in FIGS. 6 and 7 is composed of three contact elements 76, 78, 80, distinct individually represented in FIGS. 8 to 10. Each contact element 76, 78, 80 is formed by an elastic conductive strip of specific structure, obtained by cutting and folding operations.

Le premier élément de contact 76 (figure 8) comporte un embout 82 d'extrémité à contact autodénudant 84, une première lamelle de contact 86 intermédiaire destinée à venir en engagement permanent avec la broche 41 de la deuxième ampoule 18, et une deuxième lamelle de contact 88 constituant une partie du premier interrupteur 46.The first contact element 76 (FIG. 8) comprises an end piece 82 with insulation displacement contact 84, a first intermediate contact strip 86 intended to come into permanent engagement with the pin 41 of the second bulb 18, and a second contact strip. contact 88 constituting a part of the first switch 46.

Le deuxième élément de contact 78 (figure 9) est équipé d'un anneau de masse 90 destiné à être en contact permanent avec le culot de la première ampoule 16 lors de son insertion dans le socle 38, et d'une troisième lamelle de contact 92 coopérant avec la deuxième lamelle 88 en formant le premier interrupteur 46. La partie centrale 93 est pourvue d'un trou de fixation 94, et d'une première zone de déformation 96 à fente 98 agencée entre l'anneau 90 et le trou 94. La fente 98 est délimitée entre deux branches 100, 102 parallèles adjacentes s'étendant perpendiculairement à la partie centrale 93.The second contact element 78 (FIG. 9) is fitted with a ground ring 90 intended to be in permanent contact with the base of the first bulb 16 when it is inserted into the base 38, and with a third contact strip 92 cooperating with the second strip 88 by forming the first switch 46. The central part 93 is provided with a fixing hole 94, and with a first deformation zone 96 with a slot 98 arranged between the ring 90 and the hole 94. The slot 98 is delimited between two branches 100, 102 adjacent parallels extending perpendicular to the central part 93.

Le troisième élément de contact 80 (figure 10) comprend une extrémité 104 recourbée en U ayant une quatrième lamelle de contact 106 destinée à venir en contact permanent avec la borne isolée de la première ampoule 16, et une aile 108 de maintien de l'extrémité 104 dans la douille 52 du premier socle 38. Une deuxième zone de déformation 110 à fente 112 réunit l'extrémité 104 à un étrier de raccordement 114 à contact autodénudant 116. Une troisième zone de déformation 118 est intercalée entre l'étrier 114 et une cinquième lamelle de contact 120 faisant partie du deuxième interrupteur 48.The third contact element 80 (FIG. 10) comprises a U-shaped end 104 having a fourth contact strip 106 intended to come into permanent contact with the isolated terminal of the first bulb 16, and a wing 108 for holding the end. 104 in the socket 52 of the first base 38. A second deformation zone 110 with slit 112 joins the end 104 to a connection bracket 114 with insulation displacement contact 116. A third deformation zone 118 is interposed between the bracket 114 and a fifth contact strip 120 forming part of the second switch 48.

La disposition des trois éléments de contacts 76, 78, 80 sur la platine 14 est la suivante :The arrangement of the three contact elements 76, 78, 80 on the plate 14 is as follows:

Le premier élément de contact 76 est d'abord inséré dans une rainure 122 (figure 7) de logement prévue dans une extension 124 de la platine 14. Le deuxième élément de contact 78 est ensuite solidarisé à la platine 14 après positionnement du trou 94 central sur un ergot 126 fixe. L'anneau de masse 90 est logé dans une lumière du premier socle de raccordement 38 mobile, tandis que la troisième lamelle de contact 92 est disposée en regard de la deuxième lamelle de contact 88.The first contact element 76 is first inserted into a groove 122 (FIG. 7) of housing provided in an extension 124 of the plate 14. The second contact element 78 is then secured to the plate 14 after positioning the central hole 94 on a fixed lug 126. The ground ring 90 is housed in a slot in the first movable connection base 38, while the third contact strip 92 is arranged opposite the second contact strip 88.

Le troisième élément de contact 80 est finalement disposé au dessus des deux autres éléments de contact 76, 78, en étant fixé par son étrier 114 sur un bossage 128 creux solidaire de la platine 14. L'extrémité 104 est engagée dans la lumière du premier socle 38 de manière à positionner la quatrième lamelle de contact 106 en regard de l'anneau de masse 90. La cinquième lamelle de contact 120 pénètre dans une cavité à l'intérieur de la protubérance 66 en étant agencée en regard de la broche 39 de la deuxième ampoule 18 lorsque cette dernière est insérée dans le deuxième socle 40 de raccordement.The third contact element 80 is finally disposed above the other two contact elements 76, 78, by being fixed by its stirrup 114 on a hollow boss 128 secured to the plate 14. The end 104 is engaged in the lumen of the first base 38 so as to position the fourth contact strip 106 opposite the ground ring 90. The fifth contact strip 120 enters a cavity inside the protuberance 66 while being arranged opposite the pin 39 of the second bulb 18 when the latter is inserted into the second connection base 40.

Le câble 34 d'alimentation du circuit électrique 20 renferme deux conducteurs 130, 132 reliés aux bornes de polarités opposées de la source d'énergie à courant continu. Le raccordement du circuit électrique 20 s'opère par insertion des extrémités 130a, 132a des deux conducteurs 130, 132 dans les contacts autodénudants 84, 116 des première et troisième lamelles de contact 76, 80 (voir figure 7).The cable 34 for supplying the electrical circuit 20 contains two conductors 130, 132 connected to the opposite polarity terminals of the DC power source. The electrical circuit 20 is connected by inserting the ends 130a, 132a of the two conductors 130, 132 into the contacts insulation displacement 84, 116 of the first and third contact strips 76, 80 (see FIG. 7).

Le schéma (figure 12) du circuit électrique 20 montre l'insertion du premier interrupteur 46 dans le circuit de l'anneau de masse 90 de la première ampoule 16. Le point de raccordement 132a est relié à la polarité négative de la source d'alimentation. Le deuxième interrupteur 48 de commande de la deuxième ampoule 18 est branché électriquement au point de raccordement 130a qui se trouve au potentiel opposé, correspondant à la polarité positive de la source d'alimentation.The diagram (Figure 12) of the electrical circuit 20 shows the insertion of the first switch 46 into the circuit of the ground ring 90 of the first bulb 16. The connection point 132a is connected to the negative polarity of the source of food. The second switch 48 for controlling the second bulb 18 is electrically connected to the connection point 130a which is at the opposite potential, corresponding to the positive polarity of the power source.

Le fonctionnement du système à double éclairage de la lampe 10 est illustré sur les figures 13A à 15C :The operation of the double lighting system of the lamp 10 is illustrated in FIGS. 13A to 15C:

Dans la position 0 intermédiaire du levier de commande (figure 13A) correspondant à l'état de repos de la lampe 10, les deux interrupteurs 46, 48 sont ouverts, entraînant l'extinction des deux lampes 16, 18. Le deuxième moyen d'actionnement 70 de la barre de commutation 58 n'appuie pas la cinquième lamelle de contact contre la broche 39 (figure 14A), et le deuxième interrupteur 48 est maintenu dans l'état ouvert par l'effet d'élasticité de la lamelle 120. Sur la figure 15A, on remarque que le premier moyen d'actionnement 68 de la barre 58 est inactif, provoquant la séparation des deuxième et troisième lamelles de contact 88, 92 correspondant à l'état ouvert du premier interrupteur 46.In the intermediate position 0 of the control lever (FIG. 13A) corresponding to the rest state of the lamp 10, the two switches 46, 48 are open, causing the two lamps 16, 18 to go out. The second means of actuation 70 of the switching bar 58 does not press the fifth contact strip against the pin 39 (FIG. 14A), and the second switch 48 is kept in the open state by the elasticity effect of the strip 120. In FIG. 15A, it can be seen that the first actuation means 68 of the bar 58 is inactive, causing the separation of the second and third contact strips 88, 92 corresponding to the open state of the first switch 46.

Il est possible de verrouiller le levier de commande 42 dans l'état de repos en abaissant le loquet 62 de la manette 60 vers une position enfoncée (non représentée), empêchant toute rotation du levier 42 vers les deux autres positions 1 et 2. Tout allumage intempestif des ampoules 16 et 18 est rendu impossible par cet effet de verrouillage de la manette 60, ce qui est particulièrement intéressant lors du transport de la lampe 10, notamment dans un sac, ou une poche.It is possible to lock the control lever 42 in the rest state by lowering the latch 62 of the lever 60 to a depressed position (not shown), preventing any rotation of the lever 42 towards the other two positions 1 and 2. All inadvertent lighting of the bulbs 16 and 18 is made impossible by this locking effect of the handle 60, which is particularly advantageous during the transport of the lamp 10, in particular in a bag or pocket.

Pour la mise en service de la lampe 10, il est nécessaire de remettre le loquet 62 dans la position déverrouillée (figure 7), ce qui autorise le pivotement alterné du levier de commande 42 dans l'une des positions actives 1 ou 2 selon que l'utilisateur veut faire usage de l'éclairage par la première ampoule 16 ou par la deuxième ampoule 18.For the commissioning of the lamp 10, it is necessary to return the latch 62 to the unlocked position (FIG. 7), which authorizes the alternating pivoting of the control lever 42 in one of the active positions 1 or 2 depending on whether the user wants to make use of the lighting by the first bulb 16 or by the second bulb 18.

Dans la position 2 abaissée du levier de commande 42 (voir figure 13B), le deuxième interrupteur 48 est fermé suite à l'action du deuxième moyen d'actionnement 70 de la barre 58 sur la cinquième lamelle de contact 120. Le premier interrupteur 46 reste ouvert en permanence dans cette position de la manette 60. La deuxième ampoule 18 est allumée, tandis que la première ampoule 16 est éteinte.In the lowered position 2 of the control lever 42 (see FIG. 13B), the second switch 48 is closed following the action of the second actuation means 70 of the bar 58 on the fifth contact strip 120. The first switch 46 remains open permanently in this position of the lever 60. The second bulb 18 is on, while the first bulb 16 is off.

Pour assurer l'allumage de la première ampoule 16, il suffit de déplacer le levier de commande 42 dans le sens des aiguilles d'une montre vers la position 1 relevée après passage par la position 0 de repos (figure 13C). La rotation de la barre de commutation 58 provoque l'effacement du deuxième moyen d'actionnement 70, et l'ouverture du deuxième interrupteur 48 (figure 14C), tandis que le premier moyen d'actionnement 68 appuie la troisième lamelle de contact 92 contre la deuxième lamelle de contact 88 pour fermer le premier interrupteur 46.To ensure the ignition of the first bulb 16, it suffices to move the control lever 42 clockwise to the raised position 1 after passing through the rest position 0 (FIG. 13C). The rotation of the switching bar 58 causes the second actuation means 70 to be erased, and the second switch 48 to open (FIG. 14C), while the first actuation means 68 presses the third contact strip 92 against the second contact strip 88 to close the first switch 46.

La focalisation du faisceau lumineux émis par la première ampoule 16 s'effectue au moyen du bouton de réglage 50 rotatif, après fermeture du premier interrupteur 46 dans la position 1 du levier 42. Dans la position de réglage de la figure 16, le bouton 50 est tourné dans le sens de la flèche F1 pour entraîner le premier socle 38 dans le sens d'un rapprochement avec le premier réflecteur 26a.The light beam emitted by the first bulb 16 is focused by means of the rotary adjustment button 50, after closing the first switch 46 in position 1 of the lever 42. In the adjustment position of FIG. 16, the button 50 is rotated in the direction of arrow F1 to drive the first base 38 in the direction of approximation with the first reflector 26a.

Le réglage inverse est opéré sur la figure 17 en tournant le bouton 50 dans le sens opposé (flèche F2), tout en maintenant le levier 42 dans la même position 1. Le mouvement de rotation du bouton 50 écarte progressivement le premier socle 38 du premier réflecteur 26a, et modifie la largeur du faisceau lumineux par rapport au réglage précédent de la figure 16.The reverse adjustment is made in FIG. 17 by turning the button 50 in the opposite direction (arrow F2), while keeping the lever 42 in the same position 1. The rotary movement of the button 50 progressively moves the first base 38 from the first reflector 26a, and modifies the width of the light beam compared to the previous setting in FIG. 16.

La continuité électrique est assurée durant le déplacement en translation du premier socle 38 de raccordement de la première ampoule 16 grâce à la flexion élastique de la deuxième zone de déformation 110 qui suit le mouvement du premier socle 38, tout en maintenant le premier interrupteur 46 fermé.Electrical continuity is ensured during the translational movement of the first base 38 for connecting the first bulb 16 by virtue of the elastic bending of the second deformation zone 110 which follows the movement of the first base 38, while keeping the first switch 46 closed. .

Le choix d'allumage des lampes 16, 18 dépend de l'usage et de l'autonomie souhaités par l'utilisateur. La première lampe 16 possède généralement une puissance supérieure à celle de la deuxième lampe 18. L'éclairement de la première lampe est donc meilleur, mais au détriment de la consommation électrique, et du temps d'autonomie des piles ou de l'accumulateur de la source d'énergie.The choice of lighting the lamps 16, 18 depends on the use and the autonomy desired by the user. The first lamp 16 generally has a higher power than that of the second lamp 18. The lighting of the first lamp is therefore better, but at the expense of consumption electric, and the battery or accumulator time of the energy source.

Claims (9)

  1. An electric lighting lamp with double light source housed in a case (12), and containing :
    - a first bulb (16) fitted in a first connecting base (38),
    - a second bulb (18) fitted in a second connecting base (40), and extending parallel to the first bulb (16),
    - an electrical circuit (20) equipped with a control device (42) of two switches (46, 48), which are connected respectively in series with said first and second bulbs (16, 18),
    - a reflector (26) and transparent screen (29) element for transmission of the light beam emitted by each of said bulbs (16, 18),
    - a plate (14) of insulating material for supporting the two connecting bases (38, 40) and the electrical circuit (20),
    - a switching bar (58) of said control device (42) having two actuating means (68, 70) staggered along a transverse axis (59), and cooperating alternatively with contact strips (92, 120) constituting the first and second switches (46, 48) to control extinction or lighting of the light bulbs (16, 18) depending on whether the control device (42) is in a break position or an active position,
    characterized in that :
    - said plate (14) subdivides the inside of the case (12) into a first front compartment (12a) receiving the bulbs (16, 18), and a second rear compartment (12b) housing the electrical circuit (20),
    - said switching bar (58) is mounted in the second compartment (12b) with rotation in a bearing (44) on one of the side faces of the case (12) on the same side as the second fixed-focus bulb (18),
    - an adjustment knob (50) is arranged at the opposite of the control device (42) for moving the first connecting base (38) to focus the light beam emitted by the first bulb (16),
    - and the electrical circuit (20) comprises a plurality of contact elements (76, 78, 80) in the form of interconnected blades, having at least one deformable connection zone (96, 110, 118) arranged between the first movable connecting base (38) and the two movable contact strips (92, 120) of the switches (46, 48) to ensure electrical continuity when the adjustment knob (50) is rotated.
  2. The lighting lamp according to claim 1, characterized in that a mechanical locking means (62) is associated to the control device (42) to lock the latter in the break position.
  3. The lighting lamp according to claim 1 or 2, characterized in that the switching bar (58) is appreciably aligned with a pinion (56) of the adjustment knob (50) in the direction of the transverse axis (59), and that the pinion (56) cooperates with a drive part with crown-wheel (54) securedly united to the first base (38), which is moved in limited translation when the adjustment knob (50) is rotated.
  4. The lighting lamp according to claim 1 characterized in that the control device (42) comprises a lever or handle (60) coupled to the switching bar (58) and capable of occupying selectively three distinct angular positions, said break position being situated half-way between the two active end-of-travel positions.
  5. The lighting lamp according to claim 4, characterized in that the mechanical locking means (62) is formed by a latch associated to the gripping handle (60), and that in the break position the latch can be depressed to a locked position to perform locking in rotation of the switching bar (58) due to the locking effect of the handle (60).
  6. The lighting lamp according to claim 1, characterized in that the electrical circuit (20) comprises :
    - a first contact element (76) comprising an end (82) having a first self-baring contact (84), connected to a first intermediate contact strip (86) in engagement with one of the pins (41) of the second bulb (18) and to a second contact strip (88) forming part of the first switch (46),
    - a second contact element (78) equipped with an earth ring (90) in contact with the bottom of the first bulb (16), and a third contact strip (92) cooperating with the second contact strip (88) to form said first switch (46),
    - and a third contact element (80) provided with a fourth contact strip (106) in permanent contact with the isolated terminal of the first bulb (16), with a bracket (114) having a second self-baring contact (116), and with a fifth contact strip (120) forming part of the second switch (48) at the level of the fixed second base (40).
  7. The lighting lamp according to claim 6, characterized in that the conductors (130, 132) of the power supply cable (34) are connected to the electrical circuit (20) by inserting the first and third contact strips (76), (80) respectively in the first and second self-baring contacts (84), (106).
  8. The lighting lamp according to claim 1, characterized in that the first switch (46) is connected in the earth ring circuit (90) of the first bulb (16), and that the second switch (48) is connected in a branch of the circuit (20) of opposite polarity for supply of the second bulb (18).
  9. The lighting lamp according to one of the claims 1 to 8, characterized in that the plate (14) is positioned on a plurality of guiding studs (36) cast with the case (12), each stud being formed by a leg fixed to the base plate of the case (12), and extending in a direction appreciably perpendicular to the screen (29).
EP94410060A 1993-08-03 1994-08-02 Lighting lamp with double light focus Expired - Lifetime EP0637718B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9309651A FR2708714B1 (en) 1993-08-03 1993-08-03 Electric lighting lamp with bright double focus.
FR9309651 1993-08-03

Publications (2)

Publication Number Publication Date
EP0637718A1 EP0637718A1 (en) 1995-02-08
EP0637718B1 true EP0637718B1 (en) 1997-11-12

Family

ID=9449970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94410060A Expired - Lifetime EP0637718B1 (en) 1993-08-03 1994-08-02 Lighting lamp with double light focus

Country Status (9)

Country Link
US (1) US5410461A (en)
EP (1) EP0637718B1 (en)
JP (1) JP3452653B2 (en)
KR (1) KR100353292B1 (en)
CN (1) CN1073685C (en)
DE (1) DE69406732T2 (en)
ES (1) ES2110721T3 (en)
FR (1) FR2708714B1 (en)
IL (1) IL110291A (en)

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FR2785363B1 (en) 1998-11-04 2000-12-22 Zedel PORTABLE ELECTRIC LIGHTING LAMP
DE19909220A1 (en) 1999-03-03 2000-09-07 Zedel Crolles Portable electric double light
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US7215084B1 (en) 2003-02-11 2007-05-08 Streamlight, Inc. Power control arrangement, as for a flashlight
CA2697253C (en) * 2007-08-22 2017-07-04 Quantum Leap Research Inc. Lighting assembly featuring a plurality of light sources with a windage and elevation control mechanism therefor
US8382329B2 (en) * 2008-05-15 2013-02-26 Innovx Group Llc Adjustable beam lamp
FR2988160B1 (en) * 2012-03-14 2014-03-28 Zedel PORTABLE ELECTRIC LAMP WITH COMPACT HOUSING MOUNT ANGULARLY DISPLACABLE
FR2988159B1 (en) * 2012-03-14 2014-03-28 Zedel PORTABLE ELECTRICAL LAMP WITH COMPACT HOUSING COMPRISING A LIGHTING MODULE CONTROLLED BY A ROTARY ACTUATOR
CN104180338B (en) * 2013-05-24 2017-06-23 海洋王（东莞）照明科技有限公司 Knob structure and light fixture
CN105179950B (en) * 2015-09-29 2018-10-02 广东欧为照明电器科技有限公司 One kind can focusing/zooming LED illumination lamp
EP3187770A1 (en) 2016-01-04 2017-07-05 Zedel S.A. Portable lamp comprising an improved locking mechanism
USD847404S1 (en) 2017-11-20 2019-04-30 Heathco Llc Security light
US10865980B1 (en) 2017-11-29 2020-12-15 Heathco Llc Configurable security light
USD853623S1 (en) 2017-12-07 2019-07-09 Heathco Llc Security light

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Also Published As

Publication number Publication date
DE69406732D1 (en) 1997-12-18
ES2110721T3 (en) 1998-02-16
JP3452653B2 (en) 2003-09-29
CN1073685C (en) 2001-10-24
IL110291A (en) 1997-04-15
EP0637718A1 (en) 1995-02-08
JPH0778501A (en) 1995-03-20
KR950006307A (en) 1995-03-20
CN1106516A (en) 1995-08-09
US5410461A (en) 1995-04-25
FR2708714B1 (en) 1995-09-08
KR100353292B1 (en) 2002-12-11
DE69406732T2 (en) 1998-05-20
FR2708714A1 (en) 1995-02-10
IL110291A0 (en) 1994-10-21

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