EP3086031A1 - Lighting fixture to be mounted in a support, in particular in a relevant guide-holder - Google Patents

Abstract

The present invention relates to a luminaire (2) for mounting in a holder (1), in particular in a rail holder (1), with an adapter (21) for engagement in the holder (1), wherein the adapter (21) in a first Rotary position about a vertical axis (Z) inserted into the holder (1) and in a second rotational position about the vertical axis (Z) in the holder (1) in a direction of the vertical axis (Z) can be maintained, and at least one fastening means (24) for engaging in the holder (1), wherein the fastening means (24) in the second rotational position of the adapter (21) in such a way in the holder (1) can be inserted so that the adapter (21) is secured in the second rotational position, further with at least one spring element (30), which is arranged and designed such that the engagement of the fastening means (24) in the holder (1) by the spring force of the spring element (30) and can be secured. The lamp (2) is characterized in that the fastening means (24) by the rotational movement of the adapter (21) about the vertical axis (Z) of the first rotational position of the adapter (21) in the second rotational position of the adapter (21) by contact the holder (1) against the spring force of the spring element (30) can be moved, so that the fastening means (24) does not block the rotational movement of the adapter (21).

Description

The invention relates to a luminaire for fastening in a holder, in particular in a rail holder, according to the preamble of claim 1.

In the field of luminaires, various systems are known for mounting one or more luminaires, each with a luminous means or with a plurality of luminous means in each case, in or on a support to e.g. a wall, a ceiling, a piece of furniture or the like to fix. In this case, not the entire luminaire is connected in one piece to e.g. mounted on the wall, but it is a bracket firmly attached to the wall, the ceiling, etc., on, in or on the then one or more lights can be mounted or can. The luminaire or the luminaires can be fastened in the holder only in exactly one place or it can be e.g. in cable systems or rail systems, a luminaire or a plurality of luminaires can be fastened variably at least along a longitudinal axis of the mounting. Also, the lamp or the lights can be moved to, in or on the holder.

Such brackets in the form of rail brackets for this purpose usually have a long along the longitudinal axis and rigid body as a rail, which can be firmly fixed, for example by means of screws in holes in the wall, ceiling, etc. On or in the rail, the lamp or the lights can be opened or used and held in this way. This can be done via an adapter which is connected on one side with the lamp and formed on the other side for attachment to or in the rail can be. The adapter may be configured to be inserted in a first rotational position about the vertical axis in a direction of the vertical axis in the rail and to be held by a rotation about the vertical axis in a second rotational position in the rail in the opposite direction of the vertical axis, for example by an engagement inside the rail, which can be caused by the rotation.

In order to secure the lamp or its adapter in the rail in this held state, e.g. the rotation about the vertical axis back to the first rotational position can be prevented. For this purpose, it is known, for example, to provide a housing or a cap on the lamp, which on the one hand the light-side part of the adapter, which may be visible in the held state, obscure the viewer and on the other effect securing the adapter in the second rotational position can. For example, the housing for this purpose on each side in the direction of the longitudinal axis to the rail have a fastening means in the form of a housing nose, which can protrude into the rail so that the housing lugs can be laterally encompassed on both sides laterally in the direction of the transverse axis of the rail. If, in this state, the adapter and the housing together with the housing lugs are firmly connected to one another, then the housing lugs engaging in the rail can prevent a rotation of the adapter about the vertical axis and thereby secure the adapter in the second rotational position.

In order to produce this type of fuse, it has heretofore been known that the housing may be attached to the luminaire, e.g. arranged around a lamp extension between the adapter and the bulb and is rotatable both in the direction of the vertical axis and about the vertical axis. If the adapter has been brought into the second rotational position in the held state, then the housing can be rotated in such a way to the vertical axis and pushed in the direction of the vertical axis on the adapter that the housing lugs engage in the rail.

The attachment of the housing together with housing lugs in this position is usually carried out by a nut with internal thread, which is arranged around the lamp extension between the bulb and the housing. The lamp extension has for this purpose an external thread in the area in which the nut is to be arranged for attachment of the housing. Is thus the case for securing the adapter in the second Positioned rotary position, the nut can be moved in the direction of the vertical axis to the region of the external thread and screwed onto the external thread. In this way, the mobility of the housing in the direction of the vertical axis can be limited so far that the engagement of the housing lugs can be secured in the rail, which in turn can secure the engagement of the adapter in the rail in the second rotational position.

The disadvantage of this is that the mounting of such a lamp with adapter in a holder such. a rail bracket can be cumbersome and uncomfortable. Because the adapter is held in the rail, so the adapter is to be secured in this second rotational position by the housing lugs and the housing lugs themselves by another backup, namely the mother, also secure. Thus, the insertion of the adapter into the rail and turning into the second rotational position represents a first operation, which can be carried out with one hand. However, the second operation usually requires two hands, because the housing moves in the direction of the vertical axis to the rail and there must be held by hand, while with the other hand, the nuts can be screwed onto the external thread of the lamp extension. This can be very cumbersome and uncomfortable for a user, especially when overhead and on a ladder ceiling.

An object of the present invention is therefore to provide a luminaire for mounting in a holder, in particular in a rail holder, of the type described above, which are easier, faster and / or more convenient in a holder, in particular in a rail mount mounted leaves as previously known. In particular, the assembly, especially on a ceiling, can be done with one hand.

The object is achieved by the features of the characterizing part of claim 1. Advantageous developments are described in the subclaims.

Thus, the present invention relates to a lamp for mounting in a holder, which can be fixedly attached to a wall, a ceiling, a piece of furniture or the like, for example with screws and dowels. The holder can be used to attach a lamp or several identical or different lights. This bracket can In particular, be a rail bracket, ie an elongated bracket in which the lamp or more lights can be attached or can. The luminaire or luminaires can be displaceable in the rail holder.

The term "in the holder" also means that the lamp can be attached to or on the holder or around the holder around. To simplify the formulation, however, only the case of attachment "in the holder" should always be used, which also includes all other variants of attaching a luminaire with respect to a holder, which in turn has been previously firmly attached to a wall, etc. This also applies to the term "intervention", which accordingly also includes a "grasping", etc.

The lamp has an adapter for engagement in the holder, wherein the adapter can be inserted in a first rotational position about a vertical axis in the holder and held in a second rotational position about the vertical axis in the holder in a direction of the vertical axis. The adapter may be a component of the luminaire suitable for this purpose, e.g. an excellent element, which can be absorbed by the holder and can make a connection with it, which can preferably also be non-destructively detachable again. The vertical axis is the Cartesian axis, in which the luminaire with the adapter has to be inserted into the holder in order to achieve an engagement in the holder, wherein the insertion in the first rotational position is possible. In the second rotational position of the engagement takes place, so that an extraction of the adapter from the holder in the opposite direction of the vertical axis is not possible. In other words, the adapter can be held in the holder by means of a translatory and subsequent rotational movement.

The lamp further comprises at least one fastening means for engaging in the holder, wherein the fastening means in the second rotational position of the adapter can be inserted into the holder in such a way that the adapter is secured in the second rotational position. The fastener may be another component of the luminaire that can serve this purpose, such as a protruding element which fits into the fixture engage such that the rotation of the adapter can be prevented from the second rotational position back to the first rotational position. In this case, the fastening means is simultaneously provided such that the rotation of the adapter from the first rotational position can be made possible in the second rotational position.

The lamp according to the invention is characterized by at least one spring element, which is arranged and designed such that the engagement of the fastening means in the holder by the spring force of the spring element can be done and secured. The spring element can exert a tensile force or a compressive force for this purpose. The spring element may be in the form of a metal spring or an elastic body such as a metal spring. be formed a rubber body. By means of a metal spring various embodiments of tension and compression springs can be easily realized. Preferably, the spring element can be implemented as a spiral compression spring made of metal, which allows a compact structure with directed spring force in a translational direction, here the direction of the vertical axis.

By an intervention is meant that one element can be blocked by another element in at least one direction of an axis in the movement, i. the execution of the movement in this direction can be prevented. In this case, the adapter engages in the holder such that a movement counter to the direction of insertion after the rotational movement can be positively prevented. Furthermore, the fastening means also engages in the holder, but according to the invention this engagement can be effected and / or held by the spring force of the spring element. In other words, instead of the known screw connection for securing the fastening means in engagement with the holder, a spring element such as preferably a mechanical spiral compression spring can be used.

This is advantageous because in this way the fastening means in a direction of the vertical axis under tension of the spring element, ie against its spring force, can move away from the holder to the adapter its rotational movement about the vertical axis from the first rotational position to the second To allow rotational position. Once the second rotational position has been reached, the fastening means can be replaced by the spring force be brought back to its original position at relaxed or relaxed spring element and thereby intervene in such a way in the holder that the adapter can be secured against turning back into the first rotational position. The spring force of the spring element is to be interpreted such that this purpose can be met. As a result, the adapter can be inserted into the holder for mounting the lamp in the holder and rotated so that the fastening means is pressed against the spring force and automatically engage after completion of the rotational movement of the adapter in the holder and thus secure the adapter in the second rotational position can. This can be much easier, faster and more convenient than the previously known assembly with screwed securing the fastener. In other words, by the spring element according to the invention an independent backup of the fastener in the second rotational position.

It is advantageous in particular that no additional elements such as the mother in addition to the lamp itself must be operated, which may usually require a second hand. Therefore, this assembly can preferably be done with one hand.

A further advantage is that with sufficiently large spring force of the spring element for holding out additionally a non-positive attachment of the lamp can be done in the holder. This allows the lamp in a vertical mounting such. a wall mounting are held in position, in particular in a vertically oriented rail bracket.

It is also advantageous that the fastening means and the spring element during installation of the lamp in the holder need not be accessible to the user from the outside. As a result, a flat structure of the lamp can be realized. Also, screws, nuts and the like must not be considered in the design of the lamp.

According to one aspect of the present invention, the adapter and the fastening means are movable relative to each other in the direction of the vertical axis and the spring element is arranged between the adapter and the fastening means such that the spring element on the adapter and the fastening means in the direction of Vertical axis can exert a spring force directed towards each other. This spring force can be realized as a train or pressure. This can cause the spring element, that the adapter and the fastening means can be moved away from each other during assembly under tension of the spring element to allow the adapter to insert into the holder in the first rotational position, but strive by the tension of the spring element, again to return to a position closer to each other, in which then the backup of the adapter in the second rotational position can be done by the fastener. In this case, the spring element in turn secure the fastening means by its spring force in engagement in the holder.

In other words, the mobility along the vertical axis can be given in this way, which can allow the adapter to be inserted into the holder without being blocked or prevented by the fastening means. The fastening means can be moved in this way in the direction of the vertical axis against the spring force of the spring element, wherein the spring element can be stretched thereby and can build up a restoring force. As a result, the fastening means can be resiliently arranged relative to the adapter. The fastening means and the adapter are in the direction of rotation about the vertical axis fixed to each other.

According to another aspect of the present invention, in the first rotational position of the adapter, the fastener may be positioned about the vertical axis in the rotational direction spaced apart from the bracket such that the fastener does not block engagement of the adapter with the bracket, and the fastener may be in the second rotational position of the adapter about the vertical axis by the spring force of the spring element in the direction of the vertical axis engage in the holder. The distance between the fastening means and the holder consists in the circumferential direction in the cylindrical coordinates about the vertical axis as a rotation axis. In this way, the insertion of the adapter is not disturbed by the fastening means in the holder in the first rotational position and at the same time can be done securing the adapter in the second rotational position.

According to a further aspect of the present invention, the fastening means can be moved by the rotational movement of the adapter about the vertical axis from the first rotational position of the adapter to the second rotational position of the adapter by contact with the holder against the spring force of the spring element, so that the fastening means the rotational movement of the Adapters not blocked. In this way, an independent release of the rotational movement of the adapter can be effected by the fastening means, which can be implemented by the resilience of the spring element. At the same time, the resilience of the spring element leads to a tension of the spring element which, upon reaching the second rotational position of the adapter, can introduce the fastening means into the holder and secure there with its spring force.

According to a further aspect of the present invention, the fastening means and the spring element are formed in one piece or in one piece. This may mean that the fastening means and the spring element made of the same or different materials separately molded and then cohesively, positively and / or non-positively to a part, i. one-piece, firmly connected. This had the advantage that different materials for the fastener and the spring element can be used. Also, this can simplify the production of the individual parts. The fastening means and the spring element may also have been made in one piece, i. molded in one piece, e.g. with an elastic rubber body. It is advantageous in this case that an assembly of individual elements for producing the fastening means with spring element can be omitted. Also, this can reduce the manufacturing cost.

According to a further aspect of the present invention, the fastening means is formed of a material which is softer than the at least on the side, which faces the holder during the rotational movement of the adapter about the vertical axis from the first rotational position of the adapter to the second rotational position of the adapter Material of the holder is preferably formed of plastic. This aspect of the invention is based on the finding that the fastening means comes in contact with the holder during the transition of the adapter from the first rotational position to the second rotational position. In this case, to avoid scratching or similar damage Holder can come, which could be visible to the viewer, the material of the fastener may be made softer. If this contact ever scratches or similar damage may occur, they should thus occur on the fastener. Preferably, this plastic can be used as the material of the fastener. Since aluminum is usually used as the material for such holders of luminaires, scratches on the holder can thus be avoided.

Preferably, the entire region of the fastening means facing the holder is designed in such a way. The advantage here is that it does not depend on the orientation of the rotational movement in the use of the fastener, which simplifies the assembly and manufacture.

Particularly preferably, the entire fastening means is designed in this way. This further simplifies manufacture because the fastener can be made entirely of a material.

According to a further aspect of the present invention, the fastening means is at least on the side, which faces the rotational movement of the adapter about the vertical axis of the first rotational position of the adapter in the second rotational position of the adapter of the holder, obliquely. In this way, in the contact between the fastening means and the holder by the rotational movement of the adapter from the first to the second rotational position, the resilient impressions of the fastening means are favored, because the fastener and the bracket can slide off one another instead of perpendicular to each other and thereby block. Under an oblique contact, the impact of the mount on a flattened area, such an oblique flank, a sphere or the like understood the fastener. For this purpose, the fastening means can have the shape of a sphere, a triangle, a trapezoid, etc. in the region which can come into contact with the holder during the rotational movement.

Preferably, both of the holder facing sides of the fastening means are formed. The advantage here is that it is in the use of the fastener does not depend on its orientation with respect to the rotational movement, which simplifies the assembly and manufacture.

According to a further aspect of the present invention, the lamp has a housing on which the adapter is fixedly arranged and in which the fastening means is arranged in the direction of the vertical axis by the spring element resiliently. The housing and the adapter are preferably formed in one piece. Preferably, the housing has two attachment means, which are preferably arranged opposite to one another in a direction of the longitudinal axis on the housing. The two attachment means are preferably equidistant from the adapter along the longitudinal axis. Through the housing, the fastening means and the adapter can be connected to one another in such a way that they can be handled jointly by a user and thus easily and preferably with one hand. The housing may also provide a secure hold for the spring element against which the fastener may be resiliently mounted. Also, a burden of the bulb can be avoided during assembly.

According to a further aspect of the present invention, the housing has at least one fixed stop element against which the spring element can exert its spring force on the fastening means. The stop element may e.g. be connected by a screw fixed to the housing, the screw is preferably also solvable. As a result, the spring element and the stop element can be easily mounted by the spring element, e.g. can be inserted from the inside into the housing and then secured with the stop member so that it can push the fastener out of the housing.

According to a further aspect of the present invention, the housing has at least one travel limiter which can limit a movement of the fastening means in the direction of the vertical axis towards the mounting. This can be done by a positive engagement of the housing by limiting its travel in the direction of movement of the fastening means in the direction of the holder, so that the fastening means can not be completely pushed out of the housing. The exit of the fastening means from the housing in the direction of the holder can only so far be limited that the engagement of the fastener is still possible in the holder.

According to another aspect of the present invention, the travel limit of the fastener is formed by a narrowing of the housing on its bracket side housing side, wherein the fastener can protrude through the constriction in the direction of the vertical axis for mounting on the support side housing side. In this way, a simple but effective Wegbegrenzung of the fastener can be done. This can in particular be easy to manufacture.

According to a further aspect of the present invention, the adapter is designed to be substantially received in the holder in the second rotational position. As a result, the adapter can remain hidden in the holder for the viewer after mounting the lamp, which can improve the appearance of the lamp. Also, the lamp can be made more compact, because it can be dispensed with accessibility to the securing means as previously nut and thread due to the spring element. Preferably, for this purpose, the required for the compliance of the fastener spring element in the housing can be completely absorbed, so that only the adapter protrudes from the housing and in the mounted state substantially, preferably completely, can be accommodated in the holder.

According to a further aspect of the present invention, the adapter has a contour in a plane perpendicular to the vertical axis, so that the adapter is inserted in the first rotational position about the vertical axis in the holder and in the second rotational position about the vertical axis in the holder in the direction of the vertical axis can be held. This contour may preferably be formed as a rhombus whose surface lies in the plane of the longitudinal axis and transverse axis. The contour can also include elements such as lateral projections, which are connected to the adapter or formed integrally with the adapter or in one piece. In this way, the lateral extent of the adapter can be changed by a rotation about the vertical axis, so that the adapter can be inserted into the holder in the first rotational position and held there by rotation in the second rotational position there positively against the insertion direction.

According to a further aspect of the present invention, the adapter has at least two lateral projections in a direction of a transverse axis, which are adapted to be able to engage in the second rotational position in two corresponding projection receptacles of the holder in the direction of the transverse axis, so that the adapter Projections can be held in the direction of the vertical axis in the projection receptacles. These projection receptacles can be formed as lateral openings which can block at least the adapter against the insertion direction and preferably simultaneously limit the rotation about the vertical axis such that the second rotational position represents the limit of this rotational movement in this direction of rotation. In the protruding receptacles, the adapter with its projections can also be held in a non-positive manner by the projections and projections receptacles formed corresponding and possibly. At least partially an exciting or clamping spring force can exert on each other.

According to a further aspect of the present invention, the adapter has at least two electrical contact elements, which in the second rotational position can have an electrically conductive contact with two electrical conductors of the holder. These contact elements are preferably formed as lateral projections in the direction of the transverse axis. The electrical conductors of the support are preferably surrounded by and recessed into insulating means to make electrical contact with a user e.g. to avoid during assembly. In this way, an electrical supply of the lamp can be realized via the adapter, so that no separate lines and assembly steps for an electrical connection of the lamp are required.

Fig. 1

eine perspektivische schematische Darstellung einer Leuchte mit Adapter vor einer Halterung;

Fig. 2

eine perspektivische schematische Darstellung einer Leuchte mit Adapter in einer Halterung;

Fig. 3

eine perspektivische schematische Darstellung einer in der Halterung aufgenommenen Leuchte mit einer Schraubverbindung zur Sicherung der Leuchte gemäß dem Stand der Technik in der Halterung;

Fig. 4

die Ansicht der Fig. 3 mit angezogener Schraubverbindung gemäß dem Stand der Technik;

Fig. 5a

eine perspektivische schematische Darstellung einer erfindungsgemäßen Leuchte vor der Montage in der Halterung;

Fig. 5b

eine seitliche Darstellung der Fig. 5a;

Fig. 6a

eine perspektivische schematische Darstellung einer erfindungsgemäßen Leuchte in einem ersten Montageschritt;

Fig. 6b

eine Draufsicht auf die Darstellung der Fig. 6a;

Fig. 7a

eine perspektivische schematische Darstellung einer erfindungsgemäßen Leuchte in einem zweiten Montageschritt;

Fig. 7b

eine Draufsicht auf die Darstellung der Fig. 7a;

Fig. 7c

eine seitliche Darstellung der Fig. 7a;

Fig. 7d

ein Schnitt durch die Darstellung der Fig. 7c; und

Fig. 8

ein Schnitt in Richtung der Querachse durch die Darstellung der Fig. 7d.

An embodiment and further advantages of the invention are explained below in connection with the following figures. It shows:

Fig. 1

a perspective schematic view of a lamp with adapter in front of a holder;

Fig. 2

a perspective schematic view of a lamp with adapter in a holder;

Fig. 3

a perspective schematic view of a recorded in the holder lamp with a screw for securing the lamp according to the prior art in the holder;

Fig. 4

the view of Fig. 3 with tightened screw according to the prior art;

Fig. 5a

a perspective schematic view of a lamp according to the invention before mounting in the holder;

Fig. 5b

a side view of the Fig. 5a ;

Fig. 6a

a perspective schematic view of a lamp according to the invention in a first assembly step;

Fig. 6b

a plan view of the representation of Fig. 6a ;

Fig. 7a

a perspective schematic view of a lamp according to the invention in a second assembly step;

Fig. 7b

a plan view of the representation of Fig. 7a ;

Fig. 7c

a side view of the Fig. 7a ;

Fig. 7d

a section through the representation of Fig. 7c ; and

Fig. 8

a section in the direction of the transverse axis by the representation of Fig. 7d ,

The Fig. 1 and 2 show a lamp 2 with adapter 21 and a holder 1. The holder 1 extends substantially oblong along a longitudinal axis X and is formed in a transverse axis Y, perpendicular to the longitudinal axis X, comparatively narrow. This also applies to the height in the vertical axis Z, which extends perpendicular to the longitudinal axis X and perpendicular to the transverse axis Y.

The holder 1 is designed as a rail bracket 1. The rail holder 1 has a holder receptacle 10 in the form of a rail 10. The rail 10 is U-shaped, so that a receiving opening 13 or a receiving slot 13 is formed. Within the receiving opening 13, two electrical conductors 12 are arranged in the lateral flanks of the rail 10, which extend in the longitudinal axis X and lie directly opposite each other in the transverse axis Y. The electrical conductors 12 are each surrounded by an electrical insulation 11 U-shaped such that the electrical insulation 11 are formed open towards each other. Parallel to the electrical conductors 12 are in the Rail 10 two projection receptacles 14 arranged, which can also be referred to as Adapternasenaufnahmen 14 and which are also U-shaped, so that the openings in the transverse axis Y are aligned with each other. The rail 10 is fixedly secured to eg a ceiling, so that the receiving opening 13 is opened away from the ceiling down into the room.

The lamp 2 has an adapter 21, which serves to produce a solid and easy to produce but detachable connection of the lamp 2 with the holder 1. The adapter 21 extends from a housing 20 of the luminaire 2 in the direction of the vertical axis Z to the holder 1. The adapter 21 has in the plane of the longitudinal axis X and transverse axis Y, the contour of a rhombus, so that the adapter 21 can be introduced in a first rotational position about the vertical axis Z in the receiving opening 13 in the direction of the vertical axis Z. By rotation of the adapter 21 about the vertical axis Z in a second rotational position of the adapter 21 can be held in the receiving opening 13. For this purpose, the adapter 21 has two lateral projections 23, which can also be referred to as adapters 23. The Adapternasen 23 are configured and arranged laterally on the adapter 21, that they engage in the second rotational position in the projection receptacles 14 of the holder 1 and can be encompassed by these. The adapter 21 also has two electrical contact elements 22, which are configured and laterally arranged on the adapter 21, that they engage in the second rotational position in the openings of the electrical insulation 11 and the electrical conductors 12 can make electrically conductive. The electrical contact elements 22 of the adapter 21 are connected by means of electrical lines (not shown) to the light source (not shown) of the lamp 2 electrically conductive.

In this second rotational position of the adapter 21, the lamp 2 can be securely held and operated by means of the adapter 21 in the rail bracket 1. In order to secure the adapter 21 in this second rotational position, the lamp 2 has two fastening means 24 in the form of housing lugs 24, which are formed integrally with the housing 20. The housing lugs 24 extend in the direction of the vertical axis Z beyond the holder-side housing side 28 so far and are configured in the transverse axis Y such that the housing lugs 24 in the second rotational position of the adapter 21 in the receiving opening 13th engage and at a fixed connection between the housing 20 and adapter 21 can avoid a rotational movement of the adapter 21 from the second rotational position out. The holder-side housing side 28 rests with its edge or surface on the rail 10.

Now, in turn, to secure the housing 20 in this position, in which the second rotational position of the adapter 21 is secured by the housing lugs 24, it is previously known to produce a screw connection between the adapter 21 and the housing 20, see 3 and 4 , The lamp 2 has for this purpose a tubular lamp extension 26 which is fixedly connected to the adapter 21 and extends in the direction of the vertical axis Z of the adapter 21 away to a light source (not shown) of the lamp 1. The lamp extension 26 has an external thread 25 at its adapter end. Around the lamp extension 26 around a nut 27 is arranged, which is movable along the vertical axis Z and has an external thread 25 matching internal thread.

After the adapter 21 has intervened in the second rotational position in the rail bracket 1, this state can be secured according to the prior art in that the housing 20 is moved in the direction of the vertical axis Z to the rail bracket 1 via the adapter 21, so that the housing lugs 24 engage in the receiving opening 13. Since in a ceiling mounting the housing 20 in this case must be moved against the direction of gravity, this security state would solve by itself again. Therefore, then the nut 27 is screwed onto the external thread 25, so that the engagement of the housing lugs 24 can be fixed in the receiving opening 13 thereby.

The disadvantage here is that just in a ceiling mounting the housing 20 must be pressed with one hand against the rail 10 so long, until with the other hand, the nut 27 was screwed onto the external thread 25. This is awkward, inconvenient and can be very tiring for the user's arms very quickly.

According to the invention it is instead proposed to design the fastening means 24 such that they secure themselves in engagement with the receiving opening 13 so that the user no longer has to perform any further assembly steps after turning the adapter to the second rotational position. This will now be related to the Fig. 5a to 8 explained.

The Fig. 5a, 5b show a luminaire 2 according to the invention before installation below a rail bracket 1, which is fixed to a ceiling. The rail 10 know this two recesses 15, can be screwed through the screws or the like in holes in the ceiling. The insertion and screwing of these screws can be advantageously carried out by the U-shaped receiving opening 13, so that the heads of the screws can remain as hidden as possible for the viewer. The housing-side support side 16 then points to the floor of the room or to the viewer.

The luminaire 2 according to the invention extends essentially in the direction of the longitudinal axis X, in which the rail 10 also extends. In this direction, the center of the adapter 21 is fixedly connected to the housing 20 of the lamp 2 and protrudes from the holder-side housing side 28 to the holder 1 out. The lamp 2 also has two fastening means 24 in the form of ball heads 24, which are each supported by spring elements 30 in the form of spiral compression springs 30 against the housing 20 yielding. This feature will be explained in detail later using the Fig. 8 to be discribed. The two ball heads 24 are arranged in the longitudinal axis X equidistant from the adapter 21 and protrude in the vertical axis Z in the direction of the holder 1 from the bracket side housing side 28 so far out that they can engage in the receiving opening 13 of the rail 10.

The Fig. 6a, 6b show a lamp 2 according to the invention in a first assembly step. The lamp 2 has been introduced by the user in the direction of the vertical axis Z with its adapter 21 in the receiving opening 13 of the rail 10. Due to the diamond-shaped contour of the adapter 21 and the offset in the longitudinal axis X and in the direction of the transverse axis Y correspondingly formed Adapternasen 23, the insertion can be done without collision. The lamp 2 is now in its first rotational position.

The Fig. 7a, 7b . 7c, 7d show a lamp 2 according to the invention in a second assembly step. The luminaire 2 was the user by a rotation about the Vertical axis Z brought into the second rotational position, said rotational movement may be about 10 °. The Adapternasen 23 now engage in the projection holders 14 and secure the lamp 2 against gravity in the direction of the vertical axis Z (see. Fig. 7b ). The ball heads 24 were brought by this rotational movement in contact with the holder-side housing side 28 of the lamp 2. This lateral contact of the corresponding outer edge of the rail 10 exerts on the ball heads 24 a lateral force substantially in the direction of the transverse axis Y, which is transformed due to the oblique contour of the ball heads 24 in a substantially aligned in the direction of the vertical axis Z force, the in turn acts on the spiral compression springs 30. The spiral compression springs 30 are pressed and tensioned in this way, so that on the one hand, the ball heads 24 are pressed into the housing 20 and thus release the way in the direction of rotational movement. At the same time, the ball heads 24 are pressed in the direction of the vertical axis Z against the holder-side housing side 28.

By the depressed ball heads 24, the user can continue the rotational movement of the lamp 2 in the second rotational position and complete. Here, the ball heads 24 are pressed by the spiral compression springs 30 into the receiving opening 13 of the rail 10, thereby simultaneously securing the lamp 2 in this rotational position by the engagement of the ball heads 24 in the receiving opening 13 and this intervention in turn by the spring force the spiral compression springs 30 is secured. Further assembly steps of the user are not required for this purpose. For securing the luminaire 2 in the second rotational position, the force of the spiral compression springs 30 is to be provided in such a way that the ball heads 24 are pressed into the receiving opening 13 with sufficient force to prevent unintentional loosening of this connection. In addition, this spring force can be set so strong that at the same time a non-positive attachment of the lamp 2 on the rail bracket 1 in the direction of the vertical axis Z can be done, which is particularly advantageous for vertical assemblies. Preferably, this spring force is simultaneously set so low that the second rotational position of the lamp 2 can be canceled by a user again by the user can turn the lamp 2 against the spring force of the spiral compression spring 30 back toward the first rotational position. As a result, the lamp 2 can be moved on the rail bracket 1 in a different position.

If the lamp 2 is completely turned back to the first rotational position, the lamp 2 can be removed.

The Fig. 8 shows a section in the direction of the transverse axis Y by the representation of Fig. 7d , Here, in particular, the engagement of a ball head 24 in the receiving opening 13 can be seen. The ball head 24 is pressed from below through the spiral compression spring 30 into the receiving opening 13. The spiral compression spring 30 is supported from below by a fixed stop member 31 which is screwed from the inside of the housing 20 in this.

The holder-side housing side 28 is formed in this area such that it forms a travel limit 32 for the ball head 24. For this purpose, the holder-side housing side 28 has a constricted opening 32 through which the ball head 24 can extend as far as in the direction of the vertical axis Z on the support side housing side 28 so that it can engage in the receiving opening 13. On the other hand, it is prevented by the constriction of the opening 32 that the ball head 24 so far beyond the bracket-side housing side 28 protruding that he could block the rotational movement of the lamp 2 in the second rotational position. Furthermore, this prevents that the ball head 24 can be pushed out of the housing 20 by the spiral compression spring 30. In other words, the ball head 24 is held securely in the housing 20 by the narrowed opening 32.

REFERENCE LIST (part of the description)

X

longitudinal axis

Y

transverse axis

Z

vertical axis

1

(Rail) support

10

Mounting bracket, rail

11

electrical insulation

12

electrical conductors

13

Receiving opening, receiving slot

14

Projection mounts, adapter nose mounts

15

Recesses for wall or ceiling mounting

16

housing-side mounting side

2

lamp

20

casing

21

adapter

22

electrical contact elements

23

lateral projections of the adapter 21, Adapternasen

24

Fasteners, housing lugs, ball heads

25

external thread

26

lights extension

27

Nut with internal thread

28

bracket-side housing side

30

Spring elements, (spiral) compression springs

31

fixed stop elements of the spring elements 30

32

Travel limits of the fasteners, narrowed opening of the bracket-side housing side 28th

Claims (14)

Luminaire (2) for mounting in a holder (1), in particular in a rail holder (1), with
an adapter (21) for engagement in the holder (1),
wherein the adapter (21) in a first rotational position about a vertical axis (Z) inserted into the holder (1) and held in a second rotational position about the vertical axis (Z) in the holder (1) in a direction of the vertical axis (Z) can, and at least one fastening means (24) for engagement in the holder (1), wherein the fastening means (24) in the second rotational position of the adapter (21) in such a way in the holder (1) can be inserted, so that the adapter (21 ) is secured in the second rotational position,
further comprising at least one spring element (30) which is arranged and designed such that the engagement of the fastening means (24) in the holder (1) by the spring force of the spring element (30) can be carried out and secured,
characterized in that
the fastening means (24) by the rotational movement of the adapter (21) about the vertical axis (Z) of the first rotational position of the adapter (21) in the second rotational position of the adapter (21) by contact with the holder (1) against the spring force of the spring element (30) can be moved so that the fastening means (24) does not block the rotational movement of the adapter (21). Luminaire (2) according to claim 1,
wherein the adapter (21) and the fastening means (24) are movable relative to each other in the direction of the vertical axis (Z), and
wherein the spring element (30) between the adapter (21) and the fastening means (24) is arranged such that the spring element (30) on the adapter (21) and the fastening means (24) in the direction of the vertical axis (Z) towards each other directed spring force can exercise. Luminaire (2) according to one of the preceding claims,
wherein the fastening means (24) in the first rotational position of the adapter (21) about the vertical axis (Z) in the rotational direction so spaced from the holder (1) can be positioned, that the fastening means (24), the engagement of the adapter (21) in the Bracket (1) not blocked, and
wherein the fastening means (24) in the second rotational position of the adapter (21) about the vertical axis (Z) by the spring force of the spring element (30) in the direction of the vertical axis (Z) in the holder (1) can engage. Luminaire (2) according to one of the preceding claims,
wherein the fastening means (24) and the spring element (30) are formed in one piece or in one piece. Luminaire (2) according to one of the preceding claims,
wherein the fastening means (24) at least on the side facing the rotational movement of the adapter (21) about the vertical axis (Z) from the first rotational position of the adapter (21) in the second rotational position of the adapter (21) of the holder (1) is formed of a material which is softer than the material of the holder (1), preferably made of plastic. Luminaire (2) according to one of the preceding claims,
wherein the fastening means (24) at least on the side facing the rotational movement of the adapter (21) about the vertical axis (Z) from the first rotational position of the adapter (21) in the second rotational position of the adapter (21) of the holder (1) is obliquely formed. Luminaire (2) according to one of the preceding claims, further comprising
a housing (20) on which the adapter (21) is fixedly arranged and in which the fastening means (24) in the direction of the vertical axis (Z) by the spring element (30) is resiliently arranged. Luminaire (2) according to claim 7,
wherein the housing (20) has at least one fixed stop element (31) against which the spring element (30) can exert its spring force on the attachment means (24). Luminaire (2) according to claim 7 or 8,
wherein the housing (20) has at least one travel limiter (32) which can limit a movement of the fastening means (24) in the direction of the vertical axis (Z) to the holder (1). Luminaire (2) according to claim 9,
wherein the travel limit (32) of the fastening means (24) is formed by a narrowed opening (32) of the housing (20) on its holder-side housing side (28),
wherein the fastening means (24) through the constriction (32) in the direction of the vertical axis (Z) for support (1) on the support side housing side (28) may protrude. Luminaire (2) according to one of the preceding claims,
wherein the adapter (21) is adapted to be substantially received in the second rotational position in the holder (1). Luminaire (2) according to one of the preceding claims,
wherein the adapter (21) in a plane perpendicular to the vertical axis (Z) has a contour, so that the adapter (21) in the first rotational position about the vertical axis (Z) inserted into the holder (1) and in the second rotational position to the Vertical axis (Z) in the holder (1) in the direction of the vertical axis (Z) can be maintained. Luminaire (2) according to one of the preceding claims,
wherein the adapter (21) has at least two lateral projections (23) in a direction of a transverse axis (Y), which are formed in the second rotational position in two corresponding projection receptacles (14) of the holder (1) in the direction of Transverse axis (Y) to be able to engage, so that the adapter (21) by the projections (23) in the direction of the vertical axis (Z) in the projection receptacles (14) can be held. Luminaire (2) according to one of the preceding claims,
wherein the adapter (21) has at least two electrical contact elements (22), which in the second rotational position can have an electrically conductive contact with two electrical conductors (12) of the holder (1).

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