FR2721093A1 - Luminaire, in particular for public or industrial lighting, comprising a reflector body and a socket-holder device of removable light source relative to this first. - Google Patents

Abstract

The lamp standard fitting includes a reflector body (10) housing the reflector itself (30). At the end of the body distant from the post (90) on which the fitting is mounted is the movable socket carrier (40), the metal fitting (70) of the bulb being mounted in this carrier. Electrical connections are provided for this socket carrier, and consist of a first fixed connector and a second connector dependant on the socket carrier. Connection between the connectors is ensured by the movement of the socket carrier into or out of position within the reflector body. The connector is able to provide three supply contacts, for phase, neutral and the high tension output of a starter circuit.

Description

The present invention relates to a luminaire, particularly for lighting

  public or industrial, comprising a reflector body and a socket-holder device for receiving a detachable light source with respect to the

reflector body.

  Luminaires used in the field of public or industrial lighting nowadays must meet a double requirement, which is on the one hand to provide a perfectly controlled light distribution and on the other hand to

  enable simplified on-site installation and maintenance.

  Advances in reflector geometry, thanks in particular to computer-aided design, have made it possible to meet this first requirement, by providing greater visual comfort and better use of

  energy. However, a precise positioning of the light source vis-à-

  The screw of its reflector is then necessary, which often requires placing the socket in a difficultly accessible part of the luminaire. Furthermore, the high accuracy required for the positioning of the source requires a mechanical mounting of the socket on a support device which provides good mechanical strength and which is specifically adapted to the type of reflector with which it is associated. However, this type of assembly tends to complicate on-site interventions, particularly when it comes to changing the light source or repairing light sources.

  electrical contacts at the socket.

  This problem can be partly solved by the use of a removable socket holder device which then allows to release the socket with its source

  luminous out of the confined space inside the reflector.

  By way of example, a luminaire having a socket-holder device

  removable has already been proposed in the document FR-A-2 621 682.

  This luminaire comprises a reflector compartment, containing a socket-holder device and electrical circuit elements, the assembly being closed by a removable cover. The connection of the socket-holder device to the power supply is effected by a connector block physically separated from the

  bushing device, and connected thereto by a bundle of wires.

  When it is necessary to remove the socket holder from the reflector compartment, for example to change the light source or to clean the electrical contacts, it must first be disconnected, not only for safety reasons, but also for avoid damaging the power circuits. For this reason, the luminaire has a switch

  arranged to work automatically when removing the hood.

  However, there is a risk of inadvertent closure of the switch by a foreign element, such as a tool, accidentally deposited on the switch during an intervention. This risk is all the more serious as the light sources in this type of luminaire are powered by high voltage ignition cycles, of the order of a few kilovolts, which are present at

  each ignition, and especially during the change of the light source.

  Furthermore, the separation between the socket holder device of its electrical connection assembly tends to complicate the assembly of the luminaire and requires a minimum of accessibility is provided for this purpose, which affects the

compactness of the whole.

  Thus, an object of the present invention is to remedy these drawbacks by proposing a luminaire intended for public or industrial lighting comprising a reflector body, a removable socket-holder device, a socket mounted on the socket-holder device, mechanical fastening means of the socket-holder device on the reflector body, for mounting and dismounting of the socket-holder device, and means for electrical connection of the socket-holder device, comprising a fixed connector on the reflector body and a connector dependent on the socket-holder device, characterized in that the connector depending on the socket-holder device is rigidly fixed to the latter, and in that the said electrical connection means and the said mechanical fixing means cooperate in order to ensure the connection and the electrical disconnection between the two connectors respectively by the mounting and dismounting action the mechanics of the socket-holder device with respect to the

reflector body.

  In this way, it is ensured that the withdrawal of the socket holder device automatically causes the electrical disconnection of the socket. The operator can then work safely to change the light source or to

  perform maintenance operations.

  Moreover, the electrical connection by the respective connectors of the reflector body of the socket-holder device makes it possible to dispense with connection wires depending on the socket-holder device, which facilitates the removal of the latter completely from the reflector body. It also makes it possible to mount the socket on the socket-holder device in a pre-set position before installation on site, for example at the factory. The establishment of the whole on the

  reflector block then requires only one mechanical mounting operation.

  Preferably, the mechanical fixing means operate by a rotational movement of the socket-holder device relative to the reflector body, for example by means of a bayonet-type mounting. This assembly is of particularly convenient handling and can optionally form a seal of excellent quality between the

  sleeve holder device and its housing in the reflector body.

  The socket-holder device can be housed in an opening in a surface portion of the reflector, which facilitates manufacture and ensures

  precise mounting of the device with respect to reflective surfaces.

  When it is necessary to ensure a good seal between the reflector and the socket holder device, the latter is adapted to close said

  opening with interposition of a seal.

  In a particularly advantageous configuration of the luminaire, the mechanical mounting means thereof on an external support are arranged at a first end of the reflector body, whereas the opening is located towards

  a second end of the reflector body opposite the first end.

  The socket-holder device is then introduced into the opening from outside the reflector, making it possible to intervene at the light source and its connections without being disturbed by the mechanical fixing elements on the luminaire support. In addition, the housing of the socket-holder device opposite the fixing area of the luminaire allows a more rational use of the space around it

  reflector, resulting in an improvement in the compactness of the luminaire.

  The electrical connection means of the socket may be of the type establishing a connection on three conductors for supplying the light source respectively with the phase, the neutral and the high voltage output of a starting circuit. In this case, the pair of respective contact elements of the fixed connector of the reflector body and of the connector integral with the socket-holder device which makes the connection to the high voltage supply may be configured differently from the other pairs of contact elements. so that the establishment of the electrical connection with the high-voltage supply succeeds that of the two other power supplies during the mechanical assembly of the socket-holder device, and that the interruption of the electrical connection with the high-voltage supply precedes that of the two other power supplies during the dismantling of the

socket holder device.

  This arrangement not only offers increased security, but ensures the correct operation of the luminaire when it uses an automatic ignition circuit which counts the high voltage pulses from the establishment of the circuit with supply of the light source by the sentence

and the neutral.

  According to another aspect of the invention, the socket-holder device comprises means for adjusting the position of the socket in the direction of

its main axis.

  This position adjustment of the socket is particularly advantageous to allow the luminaire to adapt to different conditions of use, both at the level of the area to be illuminated and the technical characteristics of the light source or the reflector. On the industrial front, this flexibility allows the use of the same parts to satisfy different cases of exploitation, from where

  results from production savings.

  The socket-holder device may further comprise means for adjusting the position of the socket perpendicularly to its main axis in the direction of approaching and away from the vertex of the reflector, allowing a

  complementary adjustment of the light source.

  According to the invention, it is also possible to provide the device carrying

  socket means for adjusting the orientation of the main axis of the socket.

  This arrangement allows a further adjustment with respect to the above-mentioned settings, which is useful inter alia when the luminaire is equipped with a basin having a shallow depth, or even a flat bottom. In this case, it is indeed useful to be able to orient the main axis of the sleeve relative to the bottom of the

  basin for housing the lamp in relation to the basin.

  The luminaire may be provided with a removable bowl depending on a lower part of the reflector body and a cover hinged to the frame of the reflector body. The cover covers the outer surface of the reflector body and the access to the socket-holder device, and comprises a closure device at its free end which, in the closed position of the cover, exerts a force

  support on a portion of edge of the basin to ensure the maintenance thereof.

  Thus, it is possible to disassemble the basin simply by disengaging the closing device of the hood, which allows to perform

  Easily on site the changes of basin and its seal.

  The modularity of the luminaire elements can be further increased by providing for the mounting of the reflector body on a frame portion of the body

  reflector by latching devices.

  Other details and particularities of the invention will emerge from the

  description of a preferred embodiment of the luminaire according to the invention,

  given by way of illustration with reference to the accompanying drawings in which: - Figure 1 is a longitudinal sectional view of a luminaire according to the present invention; - Figure 2 is a plan view of the luminaire of Figure 1, separated into a half-view from above and a half-view from below on either side of the plane of symmetry of the luminaire; Figure 3 is a sectional view along line Im-1mI of Figure 2; Figure 4 is a perspective view showing in detail the socket holder device of the luminaire of Figure 1; FIG. 5 is a diagrammatic side view of the socket of FIG. 4; - Figure 6 is a rear view of the socket holder device of Figure 4, in section along line VI-VI of Figure 1, showing the electrical connection means of the socket holder device and the reflector block of the luminaire; and FIG. 7 is a cross-sectional view of the means of

connection of Figure 6.

  The luminaire shown in FIGS. 1 to 3 comprises a reflector body frame 10 carrying a reflector body 30 which defines a closed compartment 12 with a transparent basin 14. A socket holder 40, mounted in the reflector body, on the front side 10a of the reflector body frame, protrudes rearwardly inside the compartment 12. A socket 70 carrying a source

  71 is mounted on the socket holder 40.

  On the side of its rear end 10b, the frame of the reflector body is mounted on a support pole 90 through which the luminaire is connected to an external power source. The end of the mast 90 engages in a sleeve 92 blocked on the mast by means of a bolt 94. The reflector body 10 is fixed on the sleeve 92 by means of a bolt 96 which passes through a light 16a formed at top of a cylindrical wall portion 16 at the rear of the reflector body. This arrangement provides a range of adjustment of the general inclination of the body of

  reflector relative to the support mast.

  The basin 14, provided with a U-section seal 24 in which its flange is engaged, is mounted in a housing of the rim 22 of the reflector body. In the example shown, the basin 14 is a flat glass plate. It could be hollow, as shown in broken lines in FIG. 1. The rim 22 of the reflector body is locked on the lower part of the chassis 10 of the reflector body by compressing the seal 24. The locking is achieved by means of several organs detent 26 comprising spring blades 26a, integral with the frame of the reflector body which snap into housing 26b formed on a flange 18a surrounding the opening 18 formed in the part

  bottom of the reflector body (Figure 3).

  The reflector body 30 comprises a convex reflecting wall provided at the front with a cylindrical sleeve 32 which surrounds an opening 32a through which the socket holder 40 engages (in FIGS. 2 and 3, the socket-holder is omitted, as well as the socket and the light source). As shown in FIG. 3, another reflector 35 may be mounted inside the existing reflector 30, the latter being locked to the flange 18a of the reflector body by means of a plurality of latching devices 34. Each latching device comprises a spring leaf 34a which is carried by a male part integral with the reflector body and snaps into a housing 34b formed in a female part integral with the reflector body 30. This arrangement makes it possible, in particular, to assemble reflectors specific to each type of application on universal reflector bodies. Moreover, the use of ratchet devices is

  particularly well suited for robotic assembly lines.

  The upper part of the frame of the reflector body is closed by a cover 36 hinged about an axis located towards the rear end 10b of the frame of the reflector body (the cover is omitted in Figure 2). In the open position (raised), as shown in phantom in Figure 1, the cover 36 allows access to the socket holder 40 through the opening 32a. In the closed position, the cover 36 is locked by means of an articulated hook 38 which is located at the front of the cover and engages in a housing 23 at the front end of the flange 22 of the reflector body. The socket holder 40, with the socket 70, as well as its mounting and its electrical connection will now be described in more detail with reference

in particular in Figures 4 to 7.

  The bushing mounting 40 in the sleeve 32 of the body of

  Reflector is of the bayonet type.

  The socket holder 40 comprises a base 42 extended by a cylindrical ring 44 and a support 50 in the form of a U-shaped cross-section cradle. The ring 44 carries at its periphery an annular continuous rib 46 and a series of ribs 47 in the form of a cradle. arcs located on the same circumference. A seal

  sealing ring 48 is housed between the rib 46 and the base 42.

  The socket holder is engaged through the sleeve 32 and the opening 32a from outside the reflector body, the cover 36 being open. The sleeve 32 carries on its inner surface a series of ribs 33 in the form of arcs located on the same circumference. During the introduction of the socket holder 40, parallel to its longitudinal axis, each rib 47 is engaged in a gap between two ribs 33. Then, by rotation of the socket holder, the ribs 33 are housed each in the interval between a rib 47 and the rib 46 carrying a fitting of the socket holder by bayonet type fixing. The seal 48 is then compressed between the base 42, the rib 46 and the end of the sleeve 32. The seal

  48, with the seal 24, seals the compartment 12.

  The positions of introduction or disengagement of the socket holder and locking thereof are defined by the contacts between an abutment 49 secured to the reflector body and the ends of a notch 43 formed in the base 42

(Figure 6).

  The sleeve 70 is secured to a plate 72 provided with lugs 74 by which it rests on the edges of the cradle 50. These are provided with crenellations 52 in which the ears 74 engage and which define as many possible positions of the socket 70 relative to the socket holder in the longitudinal direction of the cradle 50. The position of the light source in the direction of the main axis of the reflector can thus be adjusted between two extreme positions

  illustrated in full lines and broken lines in Figure 1.

  The cradle 50 has at its base a longitudinal slot 54 through which passes a screw 56 which is screwed into the plate 72 to fix the sleeve 70 on

  the socket holder in the desired position.

  The bushing 70 is provided with tabs 76 for fixing it by means of screws

  Nuts in two lumens 78 of the plate 72. The lumens 78 are oriented to allow adjustment of the socket in a position more or less distant from the top of the reflector 30 in the direction perpendicular to its main axis. Advantageously, the plate 72, with the sleeve 70, can be mounted on the cradle 50 in one or other of two positions offset from each other in rotation about the main axis of the sleeve. For this purpose, the lugs 74 have two opposite parts 74a, 74b each able to engage without play in a slot 52. As shown in Figure 5, the ear 74 is in a plane inclined at an angle relative to in the plane normal to the main axis of the sleeve 70. Thus, depending on whether the plate is mounted in a position or in the opposite position, the main axis of the sleeve has a first or a second inclination

  different from each other with respect to the longitudinal direction of the cradle 50.

  In this way, the light source can be more or less distant from the basin 14.

  In particular, it is possible to choose a position of the socket for which the end of the light source is closer to the reflector when the basin

  is flat and limits the space available for the light source (see Figure 1).

  This adjustment of the inclination of the socket, in combination with the position adjustments offered by the lights 78 and the slots 52, allows a

  adaptation to different shapes of reflectors and basins.

  The power supply of the light source is provided by connection between a connector 60 integral with the socket holder 40 and to which the socket 70 is connected by conductors 68, and a connector 80 integral with the reflector body and which terminates a cable of 88 (FIG. 1) for connection to

  a boot circuit (not shown).

  Advantageously, the electrical connection means are designed to make the connection and disconnection of the socket 70 simultaneously

  with the assembly and disassembly of the socket holder 40.

  The connector 60 is carried at the end of an arm 62 integral with the base 42 on the side thereof opposite to that provided with the ring 44 and the cradle 50. The connector 60 comprises three male contacts 64a, 64b, 64c for supplying the light source respectively with the phase, the neutral and the high voltage output of the ignition circuit. These male contacts cooperate with

  respective female contacts 84a, 84b, 84c of the connector 80.

  The male contacts are oriented parallel to the direction tangential to their path during the rotation of the arm 62 caused by the mounting or dismounting of the bayonet attachment of the portedouille. To take into account that the displacement of the male contacts is not exactly rectilinear, the block constituting the connector 80 may be made of a material

elastically deformable.

  To avoid any accidental disconnection that could cause the vibrations, for example, a boss 36a depending on the cover 36 bears against the base 42, at the end of the arm 62 o is the connector 60,

  when the hood is in the closed position (Figure 1).

  Preferably, the contacts are made so that the high voltage supply is last established at the connection and interrupted first at disconnection. This is done for example by conferring on the corresponding male contact 82b a shorter length than the other two male contacts

  82a, 82c, the female contacts being identical (Figure 7).

  Note also that the connector 60 is disposed within a housing 66 at the end of the arm 62, housing whose wall surrounds the male contacts. The housing 66 is accessible through an opening in which engages the block 80 carrying the female contacts. The latter is provided at its periphery with a sealing lip 86 which cooperates with the wall of the housing 66 to isolate the contacts and protect them from dirt and moisture when the connection is established. The invention is not limited to the embodiment which comes

  to be described but allows for many variations.

  For example, the mechanical attachment of the socket holder 40 can be achieved by screwing on a fraction of a turn, rather than a bayonet type mounting. It is also possible to modify the arrangement of these fixing means so that the mounting and dismounting of the socket holder 40 takes place along a rectilinear path in the direction of insertion. In this case, the socket holder 40 may be retained in the reflector body 30 by snapping or by connection between male and female elements. The contacts of the electrical connectors

  will then be aligned in the insertion direction of the socket holder.

  Moreover, the adjustment of the longitudinal position of the socket may be achieved by mounting the socket in a slide of the socket-holder along which the socket can be moved and tightened by any means known to man

of career.

Claims (13)

claims   1. Luminaire, in particular for public or industrial lighting, comprising: - a reflector body (10) in which is housed a reflector (30); a detachable socket holder (40); - a socket (70) for a light source (78), mounted on the socket holder device; - Mechanical attachment means of the socket holder (40) on the body   reflector (10) for mounting and dismounting the device   socket, and - means for electrically connecting the gill device, comprising a fixed connector (80) on the reflector body and a connector (60) depending on the socket-holder device, characterized in that the connector (60) depending on the device socket holder (40) is rigidly secured to the latter, and in that said electrical connection means and said mechanical fixing means cooperate so as to ensure the electrical connection and disconnection between the two connectors respectively by the mounting action and mechanical disassembly of the device   socket holder (40) with respect to the reflector body (10).   2. Luminaire according to claim 1, characterized in that the said means   mechanical fasteners operate by a rotational movement of the   sleeve (40) with respect to the reflector body (10).   3. Luminaire according to claim 1 or 2, characterized in that the holder-holder device (40) is housed in an opening (32) made in a   surface portion of the reflector (30).   4. Luminaire according to claim 3, characterized in that the sleeve holder device (40) closes said opening (32) with interposition of a seal sealing (48).   5. Luminaire according to claim 3 or 4, characterized in that it comprises means (92, 94) for mechanical mounting on an external support (90) at a first end (30b) of the reflector body, said opening (44). ) being located towards a second end (30a) of the reflector body opposite the first end, and in that the sleeve holder device (40) is introduced into   said opening from outside the reflector (30).   6. Luminaire according to any one of claims 1 to 5, characterized   in that the electrical connection means of the socket (70) establish a connection on three conductors, intended to connect the light source (71) respectively with the phase, the neutral and the high voltage output of a starting circuit, and in that the pair of respective contact elements (84b, 64b) of the fixed connector (80) of the reflector body (10) and the connector (60) integral with the socket carrier (40) which makes the connection to the high-voltage supply is configured differently from the other pairs of contact elements, so that the establishment of the electrical connection with the high-voltage supply succeeds   the establishment of the other two connections during the mechanical assembly of the   socket, and that the interruption of the electrical connection with the high-voltage supply precedes the interruption of the two other connections during the dismantling of the socket-holder.   7. Luminaire according to any one of claims 1 to 6, characterized   in that the socket holder device (40) has means (50, 52) for   adjusting the position of the sleeve (70) in the direction of its main axis.   8. Luminaire according to claim 7, characterized in that the bushing device (40) comprises a cradle-shaped part (50), along which several positions are defined for the bushing (70), and means (56) ) of   locking the socket in any of these positions.   9. Luminaire according to any one of claims 1 to 8, characterized   in that means (78) are provided for adjusting the position of the bushing (70) perpendicular to its main axis in the direction of   the distance from the top of the reflector (30).   10. Luminaire according to any one of claims 1 to 9, characterized   in that means (74) are provided for adjusting the orientation of the axis main socket (70).   11. Luminaire according to any one of claims 1 to 10,   characterized in that it further comprises a basin (14) defining a closed compartment (12) with the reflector (30) and a hood (36) hinged to the reflector body (10), the hood comprising a closure device located at its free end and which, in the closed position of the hood, exerts a bearing force   on the basin (14), to help ensure the maintenance thereof.   12. Luminaire according to any one of claims 1 to 11,   characterized in that the reflector (30) is mounted on the reflector body (10) by latching means (34).   13. Luminaire according to any one of claims 1 to 12,   characterized in that the reflector body (10) comprises a cover (36) provided with a boss (36a) which, when the hood is in the closed position, bears against the socket holder (40) so as to maintain in position the connector (60) depending on the latter to avoid accidental disconnection.