EP2711623A1 - Locking assembly for a lamp, and luminaire with a locking assembly - Google Patents

Abstract

The latch assembly has a holding element (20) and a lever element (30) that is mounted on the holding element through a rotary bearing (1) in a rotating manner. The rotary bearing is provided as a sliding bearing with a guide element and a guided element. The guide element has two holes or incomplete punchings along a circular line. Each hole or incomplete punching has an edge region that is oriented radially outwards with respect to the circular line, where the edge regions form the guide surfaces for the guided elements. An independent claim is included for a luminaire with a supporting element that is held in the holding element of the latch assembly.

Description

The invention relates to a locking arrangement for a lamp, in particular for a surface-mounted luminaire, wherein the locking arrangement comprises a holding element and a lever element which is rotatably supported by a pivot bearing on the holding element. Furthermore, the invention relates to a luminaire with such a locking arrangement.

Locking arrangements comprising a pivot bearing are known in various forms in the case of luminaires from the prior art. However, the known locking arrangements are relatively complex to manufacture and complex in construction.

The invention has for its object to provide a corresponding improved locking arrangement. In particular, the locking arrangement should show a safe operation in a particularly simple structure. In addition, a luminaire is to be specified with such a locking arrangement.

This object is achieved according to the invention with the objects mentioned in the independent claims. Particular embodiments of the invention are indicated in the dependent claims.

According to the invention, a locking arrangement for a luminaire, in particular for a surface-mounted luminaire, is provided, which comprises a holding element and a lever element which is rotatably supported by a pivot bearing on the holding element. The pivot bearing is a sliding bearing and has a guide element and a guided element, wherein the guide element has at least two, arranged on a circular line holes or incomplete punches and each of the holes or each of the incomplete punches one, with respect to the circular line radially to has outside edge region, such that the edge regions form guide surfaces for the guided element.

As a result of this design, a guide for the guided element can be formed with particularly low production and material expenditure.

Preferably, the guide element is formed by the holding element and the guided element is formed by the lever element.

Preferably, the guide element and / or the guided element made of sheet metal. This allows a particularly cost-effective and simple production of the locking arrangement.

Further advantageously with respect to the manufacture, the guide element is formed by a deformed plate in which the deformation runs along the circular line. In particular, the deformation may be formed by embossing or deep-drawing.

Preferably, the locking arrangement further comprises a counter-element which is connected to the guide element such that the guided element is arranged in an area outside the circular line between the guide element and the counter-element. As a result, the locking arrangement can be carried out with particularly few components.

In terms of manufacturing technology, the counter element is connected to the guide element by welding or clinching.

Preferably, in this case - viewed within the circle - the counter element in the direction of the axis of the pivot bearing on a greater strength than the guide element. This makes it possible to achieve that the holding forces that occur can be transmitted particularly well.

According to a further aspect of the invention, a luminaire is provided with a locking arrangement according to the invention. The locking arrangement is preferably designed for mounting the lamp to a ceiling or wall, wherein the holding element is provided for, at the Ceiling or to be attached to the wall. A reverse assembly would be conceivable.

Preferably, the retaining element has within the circular line on, preferably centrally about the axis of the pivot bearing formed, through opening for a connecting element for fixing the retaining element to the ceiling or wall. In this way it can be achieved that the power flow from the lamp to the ceiling or to the wall directly or directly from the lever element on the connecting element, so for example a screw leads. No connection to other components is claimed.

The locking arrangement is preferably configured to hold a support element of the lamp to the holding element. The locking arrangement is particularly well suited for holding corresponding weights due to their structure. The luminaire may be, for example, a 2 or 3 m long luminaire, which has a correspondingly high weight.

Preferably, the lever element has a support lug, which is designed to engage under a projection of the carrier element for holding the carrier element on the holding element.

Preferably, the lamp is elongate, so that it has two end regions, wherein the locking arrangement is arranged on one of the two end regions and on the opposite end, another end locking arrangement is arranged, which is preferably analogous to the first-mentioned locking arrangement, in particular symmetrically For this. In this case, the locking arrangement is particularly well suited for holding the lamp.

Fig. 1

eine perspektivische Schnittdarstellung zu einer erfindungsgemäßen Verriegelungsanordnung als Bestandteil einer Leuchte,

Fig. 2

eine entsprechende Darstellung, wobei die Schnittebene durch die Drehachse des Drehlagers der Verriegelungsanordnung geführt ist,

Fig. 3

eine perspektivische Skizze von schräg oben zu der Verriegelungsanordnung in separierter Form,

Fig. 4

eine Skizze von schräg unten nach Art einer Explosionsdarstellung,

Fig. 5

eine detailliertere perspektivische Schnittdarstellung von schräg oben, bei der der Schnitt durch die Drehachse des Drehlagers geführt ist,

Fig. 6

eine weitere perspektivische Darstellung von schräg unten,

Fig. 7

eine Leuchte, die mit einer erfindungsgemäßen Verriegelungsanordnung an einer Decke befestigt ist und

Fig. 8

eine Skizze der Leuchte nach Art einer Explosionsdarstellung.

The invention is explained in more detail below with reference to an embodiment and with reference to the drawings. Show it:

Fig. 1

3 a perspective sectional view of a locking arrangement according to the invention as part of a luminaire,

Fig. 2

a corresponding representation, wherein the cutting plane is guided through the axis of rotation of the pivot bearing of the locking arrangement,

Fig. 3

a perspective sketch obliquely from above to the locking arrangement in a separate form,

Fig. 4

a sketch from diagonally below in the manner of an exploded view,

Fig. 5

a more detailed perspective sectional view obliquely from above, in which the section is guided through the axis of rotation of the pivot bearing,

Fig. 6

another perspective view from diagonally below,

Fig. 7

a luminaire, which is fastened with a locking arrangement according to the invention on a ceiling and

Fig. 8

a sketch of the lamp in the manner of an exploded view.

In Fig. 7 a luminaire in the form of a ceiling-mounted luminaire is shown, which is fastened with a locking arrangement according to the invention on a ceiling. Fig. 8 shows components of the lamp in the manner of an exploded view. In general, the light can be provided for attachment to a ceiling or on a wall. The following describes the case where the luminaire is intended for ceiling mounting. If the luminaire is intended for wall mounting, the description should be reinterpreted accordingly.

To attach the lamp to the ceiling is a particular rail-like mounting element or support member 20, which is initially attached separately to the ceiling for mounting the lamp. Subsequently, the other lighting components are attached to the holding element 20, with the aid of the locking arrangement.

This includes, in addition to the holding member 20, a lever member 30 which is rotatably supported by a pivot bearing 1 on the holding member 20, as in Fig. 8 indicated by a double arrow. The lever element 30 preferably has a grip tab 39 for easier handling. The shape of the grip tab 39 is preferably adapted to the shape or the surface of the lamp.

Manufacturing technology advantageous, the lever member 30 consists of one piece or formed in one piece.

The pivot bearing 1 allows rotation of the lever member 30 about a rotation axis A. In the case shown here, the ceiling runs horizontally. The axis of rotation A is oriented vertically in this case.

However, the locking arrangement is generally also suitable for a corresponding attachment of a lamp to an otherwise inclined surface, so for example on an arbitrarily inclined wall element. The corresponding directions in the present description are to be reinterpreted accordingly.

The lever member 30 can be moved back and forth by said rotation between a holding position and a release position, wherein the holding position for holding the other lighting components and in the release position, the other lighting components can be removed from the support member 20 and for mounting from the outside can be brought into the intended relative position relative to the retaining element 20 coming. In Fig. 8 is the lever member 30 outlined in the holding position. For example, it can be provided that the release position relative to the holding position is rotated by 90 °.

For holding the other lighting components in the holding position, the lever member 30 has a locking element in the form of a support bracket 31, which engages behind a corresponding corresponding element on another lighting component or under. The locking arrangement thus represents a rotary latch.

Fig. 4 shows a perspective view obliquely from below on the holding member 20 and the lever member 30 in the manner of an exploded view. As shown here, the lever member 30 may further comprise a further support tab 31 ', which is formed with respect to the axis of rotation A of the first-mentioned support tab 31 opposite and preferably analog or symmetrical thereto.

As in Fig. 8 shown as an example, the holding member 20 may be a total of elongated, wherein the locking assembly and thus the pivot bearing 1 is disposed at one of the two end portions. Preferably, a corresponding further locking arrangement is formed at the opposite end, opposite thereto, preferably analogous to the first-mentioned locking arrangement. With reference to the oblong shape, accordingly, the holding element 20 advantageously has at the other end region a further rotary bearing 1 'and a corresponding, further lever element 30', wherein the design is preferably symmetrical, in particular mirror-symmetrical to the first-mentioned locking arrangement.

The retaining element 20 and the two mentioned locking arrangements thus form a mounting device for the luminaire.

Such an elongated design of the retaining element 20 is particularly suitable in the case of an elongated lamp, as exemplified in Fig. 7 shown. However, the locking arrangement according to the invention is generally also in the case of a differently shaped lamp. If a luminaire has, for example, a rectangular or square basic shape, an embodiment with four locking arrangements could advantageously be provided, each of which is located in one of the four corner areas.

Fig. 1 shows a perspective sectional view of the end portion of the lamp obliquely from above, wherein the holding member 20 and the other lighting components are shown in the provided for the operation of the lamp relative position. The lever member 30 is accordingly shown in the holding position.

The further luminaire components in particular comprise a carrier element 40 of the luminaire, which comprises a projection 41 and a further projection 41 ', wherein for holding the other lighting components on the support member 20, the support bracket 31 engages under the projection 40 and the further support tab 31 'the further projection 41'. As shown, the support member 40 may be shaped like a profile while being aligned in parallel with the support member 20. Accordingly, the projection 41 and the further projection 41 'are preferably shaped like a profile and oriented with their longitudinal axes parallel to the longitudinal axis of the holding element 20 when the lamp is mounted as intended.

By the support member 40 may advantageously be a device compartment 42 of the lamp may be formed, wherein the holding member 20 forms a cover for the equipment compartment 42 in the assembled state of the lamp. When removing the lamp from the ceiling access to the equipment compartment 42 is automatically opened in this way or covered when mounting the lamp of the equipment compartment 42.

The following will now be discussed in more detail on the locking arrangement itself.

Fig. 2 shows a further perspective view obliquely from above, wherein the sectional plane through the axis of rotation A of the pivot bearing 1 is placed.

The rotary bearing 1 is a sliding bearing and comprises a guide element 2 and a guided element 3. The guide element 2 is preferably formed by the holding element 20 and the guided element 3 by the lever member 30th

Fig. 3 shows a perspective view of the locking assembly in a separated form and Fig. 5 a cutaway view from diagonally above. The guide element 2 has a plurality, at least two, arranged on a circle K holes 4. Instead of the holes 4 and incomplete punching, so to speak "cracks" can be provided. Each of the holes 4 in this case has an edge region 5 pointing radially outward with respect to the circular line K , such that the edge regions 5 form guide surfaces for the guided element 3. For this purpose, the guided element 3 preferably has a circular opening 33, which is designed in such a way that, when the lever element 30 rotates about its axis of rotation A , its inner edge slides along the edge regions 5.

The edge regions 5 thus act as a kind of "axle bolt". They are preferably formed by radially outwardly pointing webs or tabs 21, which in turn are formed by exemptions in the form of holes 4. The holes 4 may, for example, in a first approximation have a U-shape, wherein the two U-legs with respect to the circle K point towards the center. Between the U-legs then the tabs 21 are formed.

The number of tabs 21 or the holes 4 can be adapted to the respective strength requirement. For example, between four and twelve holes 4 may be provided, so for example six or eight holes. 4

For the production it can be provided that in a first step the holes 4 are punched and in a subsequent, second step the deformation is produced.

The guide element 2 or the holding element 20 is preferably made of sheet metal and preferably the guided element 3 or the lever element 30 is made of sheet metal. The holes 4 in the guide element 2 can be advantageously formed by punching manufacturing technology. Likewise, the circular opening 33 of the guided element 3 may be formed by punching.

As in the example shown, the case may advantageously be produced by a deformed plate, in which the deformation runs along the circular line K. The deformation can be advantageously formed by embossing or deep drawing.

By a corresponding deformation of a plate having no corresponding holes, a suitable circular cylindrical guide surface would be difficult to be formed; In such a deformation always certain tolerances are taken into account. Through the holes 4 can be achieved that manufacturing technology advantageous yet a correspondingly accurate guidance for the guided element 3 and the lever member 30 can be ensured.

As in the example shown, the locking arrangement further comprises a counter element 6 which is connected to the guide element 2 in such a way that the guided element 3 is arranged in an area outside the circular line K between the guide element 2 and the counter element 6. Preferably, the counter element 6 is connected to the guide element 2 by welding or clinching. In this way, a suitable guide for the guided element 3 or the lever element 30 is formed with few components and low production costs.

Accordingly, the deformation formed by embossing or deep-drawing is preferably such that an area 25 of the guide element 2 located within the circular line K is offset by one dimension from a region 26 located outside the circular line K , which is equal to a thickness of the guided element 3 plus a corresponding one Movement game for the guided element 3 is.

In order to facilitate centering of the counter element 6 relative to the holding element 20 in the manufacture of the locking arrangement, at least one small embossment in one of the two said elements 6, 20 and at least one corresponding hole in the respective other of the two elements 6, 20 formed be.

Considered within the circle line K, the counter element 6 in the direction of the axis A of the pivot bearing 1 preferably has a greater thickness than the guide element 2. The deformation is thereby advantageously formed manufacturing technology in the thinner of the two elements 2, 6. The counter-element 6 is thereby made thicker or stronger, so that holding forces occurring can be transferred particularly well.

In principle, however, the deformation could alternatively be performed in the counter element 6 or in each of the two elements 2, 6 partially.

As in Fig. 6 by way of example, the carrying tab 31 preferably has bent-over corners 35, 36 which act as guides or guiding surfaces when the carrying tab 31 moves under the projection 41 when the lamp is fastened to the holding element 20 serve. In this way it can be achieved that the lamp can be fixed with slight bias.

Furthermore, the design may be such that the support bracket 31 is slightly bent over, so that when screwing a kind of dead center must be overcome. As a result, the risk of autonomous opening from the holding position can be reduced or even avoided. Alternatively or additionally, a corresponding fuse can be effected by a wire spring 37, as in Fig. 6 outlined. By means of such a configuration, it is also possible to achieve that an operator can haptically detect upon reaching the holding position during operation of the lever element 30 that the holding position has been reached.

The counter-element 6 can also fulfill other functions, for example - be designed as an attack element for a pendulum - in the case of a pendant lamp.

The counter element 6 can also be designed as a guide element to assist in the alignment of the other lighting components relative to the holding element 20 during assembly of the lamp; For example, this can - in the case of an elongated light - the longitudinal centering of the lamp be supported. For this purpose, the counter element 6 can-as shown by way of example in the figures-be formed by an angularly bent plate, with a leg formed thereby forming a stop element for a further luminaire component.

The counter element 6 can also be configured as a receptacle of a rotation.

Preferably, the holding element 20 within the circular line K on, preferably formed centrally about the axis A of the pivot bearing 2, through opening 29 for a connecting element V for fixing the holding member 20 on the ceiling. This allows a particularly direct flow of force from the lever member 30 via the connecting element V to the ceiling. The connecting element V may in particular be a screw.

Accordingly, the counter element 6 advantageously has a corresponding passage opening 69 for the connecting element V.

For mounting the lamp to a ceiling, it may be provided that in a first step the retaining element 20 is fastened to the ceiling by means of the connecting element V. In a second step, the lamp is then electrically connected, in a third step, the other lighting components are aligned as intended relative to the holding member 20, wherein the lever member 30 is accordingly in the release position and in a fourth step, the lever member 30 from the release position rotated in the holding position, so that in this way the other lighting components are held on the holding element 20.

Preferably, the design of the lamp is such that - with mounted light - which is in the holding position lever member 30 is completely or almost completely within the normal projection of the other lighting components, so in normal view of the lamp is practically no longer visible.

However, when the lever member 30 is in the release position, it preferably protrudes beyond the aforementioned projection of the other lighting components, so that it can be easily grasped.

In the example shown, the lever member 30, the pivot bearing 1 opposite, a small, slightly curved end portion, which facilitates gripping the lever member 30 when the lever member 30, with the lamp mounted, is in the holding position. As a result, a disassembly of the lamp is facilitated.

The locking arrangement according to the invention can be integrated into the luminaire in a particularly inconspicuous manner. It works very easy and safe. It can be made from very few individual parts.

Claims (14)

Latching arrangement for a luminaire, in particular for a surface-mounted luminaire, comprising - A holding element (20) and a lever element (30) which is mounted rotatably on the holding element (20) by a rotary bearing (1),
characterized,
in that the pivot bearing (1) is a slide bearing and has a guide element (2) and a guided element (3), wherein the guide element (2) has at least two holes (4) arranged on a circular line ( K ) or incomplete punches and each of the holes (4) or each of the incomplete punches has a, with respect to the circular line ( K ) radially outwardly facing edge region (5), such that the edge regions (5) guide surfaces for the guided element (3). Locking arrangement according to claim 1,
in which the guide element (2) is formed by the holding element (20) and the guided element (3) is formed by the lever element (30). Locking arrangement according to claim 1 or 2,
in which the guide element (2) and / or the guided element (3) consist of sheet metal. Locking arrangement according to one of the preceding claims,
in which the guide element (2) is formed by a deformed plate, in which the deformation runs along the circular line ( K ). Locking arrangement according to claim 4,
in which the deformation is formed by embossing or deep drawing. A latch assembly according to any one of the preceding claims, further comprising - A counter-element (6) which is connected to the guide element (2), that the guided element (3) in an area outside the circular line ( K ) between the guide element (2) and the counter-element (6) is arranged. Locking arrangement according to claim 6,
in which the counter element (6) is connected to the guide element (2) by welding or clinching. Locking arrangement according to claim 6 or 7,
when viewed within the circular line ( K ), the counter element (6) in the direction of the axis (A) of the pivot bearing (1) has a greater thickness than the guide element (2). Light, comprising - A locking arrangement according to one of the preceding claims. Luminaire according to claim 9,
wherein the locking arrangement for mounting the lamp is configured on a ceiling or wall and the holding element (20) is provided to be attached to the ceiling or on the wall. Luminaire according to claim 10,
in which the retaining element (20) within the circular line ( K ), preferably centrally around the axis ( A ) of the pivot bearing (2) formed through opening (29) for a connecting element ( V ) for fixing the retaining element (20) on the ceiling or wall. Luminaire according to claim 10 or 11,
in which the locking arrangement is designed to hold a carrier element (40) of the luminaire on the holding element (20). Luminaire according to claim 12,
in that the lever element (30) has a support lug (31) which is designed to engage under a projection (41) of the carrier element (40) for holding the carrier element (40) on the holding element (20). Luminaire according to one of claims 10 to 13,
which is elongated so that it has two end regions, wherein the locking arrangement is arranged on one of the two end regions and on the opposite end, another end locking arrangement is arranged, which is preferably analogous to the first-mentioned locking arrangement, in particular symmetrically thereto.

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