EP1099903B1 - Luminaire - Google Patents

Abstract

The light has a long light body, which is held by two mountings (8) fitted at the end faces. At least one of the mountings can be moved between an operation position, in which the lamp is partly surrounded by a reflector casing (4), and at least one removal position outside the casing. The movable mounting slides perpendicularly to the light axis (X) into the removal position. Holders (5,6) for the movable mounting have catch (13) elements to secure the mounting in the two positions. An Independent claim is included for a holder for the light mounting.

Description

The present invention relates to a luminaire according to the preamble of claim 1.

Such a lamp is shown for example in Fig. 8 in a perspective view. An essential feature of this lamp 1 is an elongated lamp body, which is formed by a support member 2 and two left and right thereof arranged light guide plates 3. The support member 2 has two reflectors 4 arranged in parallel, in each of which a lamp, for example a rod-shaped fluorescent lamp is arranged, whose light is coupled via the reflector 4 in the light guide plate 3 adjacent thereto. At the two end faces of the lamp body 2 is in each case a front part, in which the sockets are mounted for the lamps.

As can be seen in the illustration in Fig. 8, the lamps are in such a lamp in a very narrow elongated channel, so that they are difficult to access in their operating position. Usually, the reflectors 4 Although open to one side, a change of a defective lamp is, however, made difficult by the fact that it is no longer possible in these technically tight conditions to grab the fluorescent lamps with your fingers and in a known manner in the version Turn and remove from the light.

At one in the DE 198 08 912 A1 described generic lamp, therefore, the versions are supported pivotally within the reflectors. To make a lamp change, the lamp from its operating position in which it is directly adjacent to a light guide, pivoted into a lamp replacement position lying outside the reflector and locked there by means of locking elements, so that it is freely accessible from above. After changing the lamp is then swung back to the operating position. However, the pivotable socket holder described in this Durckschrift requires a certain size for the reflector, since a sufficient free space must be available for pivoting.

It is therefore an object of the present invention to provide a further possibility for a simple and quick lamp replacement in a lamp in which a lamp is difficult to access during operation within an elongated and narrow housing.

The object is achieved by a luminaire, which has the features of claim 1 or by a holder for a socket, which has the features of claim 10.

The lamp according to the invention is characterized in that at least one of the two lamp sockets between an operating position in which the lamp is at least partially surrounded by a housing and thus difficult to access, and at least one removal position outside this housing is mounted perpendicular to the longitudinal axis of the lamp slidably , So that the freely accessible after moving lamp end can be removed from the socket in a simple manner.

This solution enables a more compact luminaire design, as compared to DE 198 08 912 A1 no lateral pivoting of the lamp with its sockets is more necessary, so that the housing - which is preferably an elongated reflector - can be made very narrow. It is sufficient if only one of the two lamp holders is slidably mounted, since after the lateral removal of this lamp end, the opposite end can be removed in the longitudinal direction. The holder of the lamp holder is also characterized by the fact that they are realized with the help of very few components in a simple manner.

Further developments of the invention are the subject of the dependent claims. Preferably, the slidably supported lamp socket can be moved in two defined positions outside the housing or the reflector, wherein it is pivoted in one position relative to the other position. In this case, the socket can first vertically from the elongated housing in the first position - hereinafter referred to as the first removal position or preparation position - pushed out and then be pivoted by a certain angle in the final or second removal position, whereby a further simplified lateral removal of the lamp is guaranteed. Preferably, the pivot axis is within the projection of the lamp, so that the socket is essentially only rotated and thus only little space is required for the corresponding movement. In contrast, the axis of the pivoting movement is at the DE 198 08 912 A1 relatively far from the lamp. This measure also supports a very compact luminaire structure.

The socket can thus be moved between different positions, the operating position, the preparation position and the removal position. It can be provided that the socket locked in each of these three positions, so that the removal of the lamp is facilitated, but at the same time a secure fit is made possible. Of course, the latching in the various positions can also be provided with only one removal position outside the housing.

The mounting of the socket is preferably carried out in that a socket carrier is slidably mounted on a column-like link attachment, which in turn is mounted within an end portion of the lamp, which also serves to support the reflector. The link attachment can have a plurality of recesses or notches, in which engage on the socket carrier provided latching lugs in the three aforementioned positions or jam with the sliding block attachment to ensure locking and secure fit.

In order to enable effective coupling of the light of the fluorescent lamp in a laterally adjoining the reflector light guide plate, may further be mounted on the side of the ferrule, which corresponds to the open top of the reflector, a holder for another upper reflector, so that an all-round reflection of the Light is possible. At the same time, this upper reflector also serves as a cover, making it difficult to penetrate dust and dirt. Before pulling out the lamp then this upper reflector is removed. Alternatively, the upper reflector but also be firmly connected to the socket carrier, so that it is automatically moved with this. A previous removal of components of the lamp is then no longer necessary.

• Fig. 1 die erfindungsgemäß gelagerte Lampenfassung in Betriebsposition;
• Fig. 2 die Lampenfassung in einer Wechsel-Vorbereitungsposition;
• Fig. 3 die Lampenfassung in der Wechselposition;
• Fig. 4 ein Ausführungsbeispiel eines Fassungsträgers in seitlicher Ansicht;
• Fig. 5 den Fassungsträger aus Fig. 4 in Rückansicht;
• Fig. 6 den Fassungsträger in Aufsicht;
• Fig. 7 ein Ausführungsbeispiel eines Kulissenaufsatzes; und
• Fig. 8 eine Leuchte, in welcher die Fassungshalterung Verwendung findet.

In the following the invention will be explained in more detail with reference to the accompanying drawings. Show it:

• Fig. 1, the inventively mounted lamp holder in the operating position;
• 2 shows the lamp holder in a change preparation position.
• 3 shows the lamp holder in the change position;
• 4 shows an embodiment of a socket carrier in a side view.
• 5 shows the socket carrier of Figure 4 in rear view.
• 6 shows the socket carrier in top view;
• 7 shows an embodiment of a sliding attachment; and
• Fig. 8 is a lamp in which the socket holder is used.

With reference to FIG. 1, the holder of the lamp socket within the luminaire will first be explained in more detail. Not shown in Fig. 1, the front part of the lamp, which serves to hold the elongated tubular reflector 4 and the socket holder according to the invention. The components of the socket holder are a column-like sliding attachment 5 which is mounted within the front part, and a displaceably mounted on the sliding block 5 socket carrier 6. The socket carrier 6 has two holes 7, in which pins of the socket 8 engage when inserted into the socket carrier 6. An elongate upper reflector 9, which covers the open upper side of the reflector 4 and thus amplifies the coupling of the light given by the lamp into the light guide plate 3 arranged laterally on the reflector 4, is attached to the upper side of the holder carrier 6.

In the operating position shown in Fig. 1, the lamp is located laterally adjacent to the light guide plate 3, so that the light emitted by it can be coupled with the greatest possible efficiency in the light guide plate 3. However, in this position, a lamp replacement is difficult or not possible, since due to the cramped conditions embracing and lateral unscrewing of the lamp is impossible.

Before explaining the inventive sliding out of the lamp holder and the resulting simple lamp replacement is explained with reference to FIGS. 2 and 3, will first be discussed in more detail on the structure of the socket carrier 6 and 5 of the crank assembly. The socket carrier 6 is shown in a side view or in a rear view in FIGS. 4 and 5 and in a plan view in FIG.

Essentially, the socket carrier 6 consists of a rectangular in cross-section hollow-cylindrical member 17, engages in the opening of the cam attachment 5, and a plate 18 which has the two holes 7 for holding the lamp holder. The side arms 18a, 18b of the plate 18 engage in the assembled state in guide grooves of the front part of the lamp, so that a lateral rotation of the socket carrier 6 is avoided. At the top of the plate 18 is also a cap 11, which is used to attach the upper reflector 9.

The lateral view in Fig. 4 it can be seen that the hollow-cylindrical member 17 on two opposite sides each having an arm 10a, b, at its lower end in each case a detent 12 or 13, which projects into the opening of the hollow cylinder-like element 17 , is located. The shape of the two locking lugs 12, 13 is different. While the locking lug 13 has an inclined top and bottom, the top of the opposite locking lug 12 is flattened. Preferably, the socket carrier 6 is made of plastic or other material, which allows to a certain extent a bending of the arms 10. The underside of the plate 18 corresponds to the contour of the front part of the lamp, so that the plate 18 defined in the operating position rests against the walls of the front part. At the same time, in this position, the lower edges of the side arms 18a, 18b rest on projections of the front part.

The dimensions of the column-shaped slide attachment 5 shown in Fig. 7 are dimensioned so that it can engage in the opening of the hollow cylinder-like element 17 of the socket carrier 6. On two opposite sides of the sliding block attachment has a plurality of recesses 14 to 16, in which engage the corresponding locking lugs 12 or 13 in the specific positions or come into contact. In this case, at the intended for the locking lug 13 side a tapered in section recess 14 and a trapezoidal in section recess 15 are provided, wherein the lower recess 14 has a small height. On the opposite side is just below the upper edge of the sliding block attachment another and rectangular in section recess 16. The sliding block 5 is preferably made of a non-flexible material, such as metal, and is fixed in the front part of the lamp.

In the operating position of the lamp shown in Fig. 1, the locking lug 13 engages in the lower recess 14 of the crank 5, so that an inadvertent displacement of the holder support 6 relative to the front part or the entire lamp is avoided. If now the lamp is to be replaced, first the upper reflector 9 is removed and then the socket carrier 6 is displaced vertically up to the longitudinal axis of the lamp until the latch 12 snaps into the rectangular recess 16 and with its flattened top against the upper boundary of the recess 16 comes into contact. This corresponds to the preparation position or first removal position shown in FIG.

A further pushing out of the socket carrier 6 from this preparation position is not possible because due to the flattened upper edge of the locking lug 12 no lateral Forces act, which allow bending out of the arm 10a. At the same time, however, the opposite arm 10 b is bent, whereby the locking lug 13 jammed with the upper edge of the crank 5, so that the socket carrier 6 can be adjusted only by applying a certain force again from the position shown in Fig. 2.

The lamp holder 8 and thus the lamp is already in this preparation position outside the reflector 4 and could already be included and removed. To further facilitate the lamp replacement, however, then the socket carrier 6 in the direction I shown in Fig. 3 about the axis X, which is advantageously within the projection of the lamp, pivoted, the underside of the hollow cylinder-like element 17 in the through the upper recess 15th einschwenkt formed free space. In this case, the socket carrier 6 can be pivoted as long until the lower edge of the side arm 18b comes against a further (not shown) projection of the front part of the lamp and / or the underside of the hollow cylinder-like element 17 against the sliding attachment 5 in abutment. Also in this position, the locking lug 13 is jammed with the upper edge of the sliding attachment 5, so that the socket carrier 6 can also leave the removal position shown again only under pressure. The lamp can now be easily removed laterally in the direction II.

If the upper reflector 9 is fixedly connected to the socket carrier 6, then it is also raised or pivoted simultaneously and thus does not interfere with a lamp replacement. By pivoting the socket carrier 6, the lamp can be removed obliquely relative to the light guide plate 3, which is a relief compared to a parallel removal, as would be necessary in the preparation position in Fig. 2.

The present invention is characterized in that with the help of relatively simple means the greatest possible comfort when changing the lamp is achieved, the dimensions of the reflector comprising the lamp 4 can still be kept very small. Furthermore, only a few and easily manufactured components are necessary for realizing the solution according to the invention.

Preferably, all versions of the lamp are stored in the form just described. Alternatively, it would also be possible to form only one of the two lamp sockets in the manner shown, since it is sufficient for a lamp replacement, if one end can be removed laterally, then the opposite end of the lamp in the longitudinal direction of the Version is pulled out. At the same time, the invention is not limited to the type of luminaire shown in Fig. 8, but can be found in all lamps use, in which lamps are enclosed by a reflector or a similar housing element and are difficult to access.

Claims (11)

1. Luminaire (1) having an elongate luminaire body and at least one elongate lamp, which is held by two fittings (8) attached at the end walls of the luminaire body, wherein at least one of the two fittings (8) is mounted movably between a first operating position, in which the lamp at least is partly surrounded by a housing (4), and at least one removal position outside the housing (4),
   characterised in that,
   the movable fitting (8) is mounted to be movable perpendicularly to the longitudinal axis of the lamp into the removal position outside the housing (4).
2. Luminaire according to claim 1,
   characterised in that,
   the mounting (5, 6) of the movable fitting (8) has means (12-16) for latching the fitting (8) in the operating position and in the at least one removal position.
3. Luminaire according to claim 1 or 2,
   characterised in that,
   the mounting (5, 6) of the movable fitting (8) is so constituted that there are two defined removal positions outside the elongate housing (4), wherein the fitting (8) in the second removal position is, with respect to the first removal position, pivoted relatively to the longitudinal axis of the lamp.
4. Luminaire according to claim 3,
   characterised in that,
   the movable fitting (8) is mounted movably between the operating position and the first removal position, and is mounted pivotably between the first and second removal position.
5. Luminaire according to claim 3 or 4,
   characterised in that,
   the pivot axis lies within the projection of the lamp.
6. Luminaire according to any preceding claim,
   characterised in that,
   the mounting of the movable fitting (8) has a column-like component (5) which is fastened in an end part of the luminaire, and a carrier element (6) slidable onto the column-like component (5), on which carrier element the fitting (8) is fastened.
7. Luminaire according to claim 2 and claim 6,
   characterised in that,
   the column-like component (5) has recesses (14, 15, 16) and the carrier element (6) has latching devices (12, 13) for engaging into the recesses (14, 15, 16) and/or clamping with the column-like component (5).
8. Luminaire according to claim 6 or 7,
   characterised in that,
   the end part has guides for side arms (18a, 18b) of the carrier element (6).
9. Luminaire according to any preceding claim,
   characterised in that,
   in the operating position the lamp is arranged neighbouring at least one light guiding element (3) and in that the housing surrounding the lamp is a reflector (4), open in the direction of movement, for coupling the light into the light guiding element (3).
10. Luminaire according to claim 6 and 9,
    characterised in that,
    an elongate reflector (9) is fastened on the side of the carrier element (6) corresponding to the open side of the reflector (4) and is movable in common with the fitting (8).
11. Luminaire according to claim 9 or 10,
    characterised in that,
    the luminaire has two rod-shaped gas-discharge lamps arranged in parallel, wherein in each case a light guiding element (3) is arranged at the outside thereof.

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