Luminaire having a clamping member

Abstract

A luminaire comprises a first housing element which includes at least one groove, a second housing element, and a clamping member. The clamping member of a generic luminaire further comprises a first connection area and a second connection area, the first connection area interacting with the groove and the second connection area being connected, in the assembled state, to the second housing element so that the second housing element is clamped by the clamping member relative to the first housing element. The clamping member is pivotably mounted in the groove, in a plane perpendicular to the longitudinal extension of the groove.

Claims

1. A luminaire with a luminaire housing, comprising: a housing frame as a first housing element of the luminaire housing, the first housing element including at least one groove, a housing lid as a second housing element of the luminaire housing, and a clamping member, the clamping member comprising a first connection area and a second connection area, the first connection area interacting with the groove and the second connection area being screwed, in the assembled state, to the second housing element so that the second housing element is clamped by the clamping member relative to the first housing element, wherein the clamping member is pivotably mounted in the groove, in a plane perpendicular to the longitudinal extension of the groove.

2. The luminaire according to claim 1, wherein the clamping member is captively held in the groove in at least one pivoted position.

3. The luminaire according to claim 1, wherein the clamping member, pivoting in the groove, can be transferred from an assembling position into the position in the assembled state.

4. The luminaire according to claim 3, wherein the angle of rotation between the position in the assembled state and the assembling position is at least 60°.

5. The luminaire according to claim 3, wherein the first housing element surrounds the second housing element in a frame-like manner and at least two opposite inner sides of the first housing element comprise a groove each interacting with at least one clamping member, the perpendicular clear distance of two opposite clamping members being, in the assembling position, at least as large as the expansion of the second housing element.

6. The luminaire according to claim 1, wherein the clamping member can be displaced in the groove along the longitudinal extension of the groove.

7. The luminaire according to claim 1, wherein the groove is discontinued by at least one insertion portion, the clamping member being insertable into the groove, through the insertion portion, in the direction of the longitudinal extension of the groove.

8. The luminaire according to claim 1, wherein the groove and the clamping member interact in the manner of a hinge joint.

9. The luminaire according to claim 1, wherein the groove comprises a first undercut which encompasses the end of the first connection area.

10. The luminaire according to claim 9, wherein the groove comprises a second undercut, the second undercut overlapping the first connection area.

11. The luminaire according to claim 1, wherein the first connection area is formed substantially hook-shaped.

12. The luminaire according to claim 1, wherein at least one slot is formed in the second connection area which, in the assembled state of the clamping member, extends perpendicular to the longitudinal extension of the groove.

13. The luminaire according to claim 1, wherein the edges of the second housing element are rounded, at least in the region of the clamping members.

14. The luminaire according to claim 1, wherein the clamping member comprises a contact area which is arranged between the first connection area and the second connection area, the contact area being in contact with an edge of the second housing element at least in the assembled state so that the clamping member is configured as a one-sided lever, with the first connection area being the pivot point and the contact area and the second connection area being the points of contact.

15. The luminaire according to claim 1, wherein the luminaire further comprises a seal which is arranged between the first housing element and the second housing element and rests against the first housing element and the second housing element, the first housing element being clamped by the clamping member relative to the second housing element in the assembled state so that the second housing element is pressed against the seal, and the seal seals the first housing element against the second housing element.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Advantageous exemplary embodiments of the present invention will be explained in more detail below by means of drawings. In the drawings:

(2) FIG. 1 shows a schematic cross-sectional view of a luminaire according to the invention without a clamping member,

(3) FIG. 2 shows a perspective schematic view of a clamping member of a luminaire according to the invention,

(4) FIG. 3 shows a cross-section of a schematically illustrated first embodiment of a luminaire according to the invention,

(5) FIG. 4 shows a perspective schematic sectional view of a second embodiment of a luminaire according to the invention,

(6) FIG. 5 shows a schematic cross-sectional view of the luminaire of FIG. 3 in the assembled state,

(7) FIG. 6 shows a schematic cross-sectional view of the luminaire of FIG. 4 in the assembled state,

(8) FIG. 7 shows a perspective schematic view of the groove of the luminaire according to the invention,

(9) FIG. 8 shows a cross-section of a schematically illustrated third embodiment of a luminaire according to the invention, and

(10) FIG. 9 shows an expanded cross-sectional side view of FIG. 8 from end to end.

DETAILED DESCRIPTION

(11) In the following description like parts will be designated with like reference numbers. If a drawing includes reference numbers which are not referred to in the associated description of the figure, reference will be made to the preceding or subsequent description of the figure.

(12) The luminaire 1 according to the invention as illustrated in FIG. 1 comprises a first housing element 2 having a groove 3, a second housing element 4, and a non-illustrated clamping member 5. The first housing element 2 is configured as a one-part housing frame, defining a light outlet opening 21 on the bottom side thereof and having a circumferential groove 3 on the inside 22 thereof. A cover glass 6 is arranged on the housing frame 2, in the region of the light outlet opening 21. A seal 7 rests against the housing frame 2, the second housing element 4 and the cover glass 6.

(13) The second housing element 4 is designed as a one-part lid and has rounded edges 41 and threaded bores 42 for receiving screws 9 on the upper side thereof. In the exemplary embodiment shown the cover glass 6 is configured as one part. The seal 7 integrally surrounds the total lower edge of the housing frame 2. A clearance 8 is provided between the lid 4 and the cover glass 6 in which additional, non-illustrated components of the luminaire 1 may be arranged, e.g. the light source or the power supply.

(14) In the embodiment shown the groove 3 has a first undercut 31 upwardly and a second undercut 32 downwardly. The first undercut 31 has the shape of a circle segment and encompasses the circle-segment-shaped end 54 of the first connection area 51 so that the clamping member 5 is pivotably mounted. The second undercut 32 has a tub-shaped configuration and overlaps the first connection area 51, the first connection area 51 resting against the second undercut 32 in the assembled state.

(15) FIG. 2 shows an exemplary embodiment of a clamping member 5 of a luminaire according to the invention. The clamping member 5 has a first connection area 51, a second connection area 52 and a contact area 53. In the embodiment shown the clamping member 5 is produced from a metal section. The first connection area 51 is hook-shaped. The end of the first connection area 51 has the shape of a circle segment so as to interact with the first undercut 31 of the groove 3. The hook-shaped configuration creates a substantially U-shaped intermediate area 55 with which the wall 33 of the first undercut 31 engages, thus upwardly limiting the range of the angle of rotation. Moreover, the clamping member 5 is prevented from falling out of the groove 3 perpendicular to the surface of the inner housing wall 22. The tub-shaped second undercut 32 additionally prevents the clamping member 5 from falling out parallel to the inner housing wall 22 so that the clamping member 5 is captively held in the groove 3 in all pivoted positions. In the embodiment shown the second connection area 32 includes two slots 56.

(16) FIG. 3 shows the clamping member 5 of FIG. 2, arranged in the groove 3 according to the embodiment of FIG. 1. A screw 9 penetrates the clamping member 5 at a slot 56, and is introduced into the threaded bore 42 on lid 4. The clamping member 5 rests with the contact area 53 against the rounded edge 41 of the lid 4. Thus, the clamping member 5 acts like a lever, whereby the force applied by the screw 9 to the clamping member 5 from above is more intensively transmitted downwardly to the lid 4 in the contact area 53.

(17) The embodiment illustrated in FIG. 4 corresponds to the embodiment of FIG. 3. However, threaded bolts 43 are formed on the lid 4, which penetrate the clamping member 5 and onto which nuts 10 are screwed for fastening them.

(18) FIG. 5 shows the embodiment of FIG. 3 in the assembled state. During the transfer into the assembled state the screw 9 has moved in the slot 56. Due to the rounded edge 41 and the rounded contact area 53 the second housing element 4 and the clamping member 5 are in contact with one another during the clamping process across a large contact surface. The first connection area 51 is in contact with the second undercut 32 so that the clamping member 5 cannot be pivoted further. This limitation prevents damage to the individual components. The lid 4 is pressed against the seal 7, so that the lid 4 is sealed against the housing frame 2.

(19) FIG. 6 shows the embodiment of FIG. 4 in the assembled state.

(20) FIG. 7 illustrates the insertion portion 34 of the groove 3 of a luminaire 1 according to the invention. In the embodiment shown the first undercut 31 of the groove 3 is discontinued in the insertion portion 34. The groove 3 is further configured such that the clamping member 5 of FIG. 2 can be displaced in groove 3 along the longitudinal extension of groove 3. For inserting the clamping member 5 the clamping member 5 is initially introduced from above into the insertion portion 34 and then pushed in, along the longitudinal extension of the groove 3, from the insertion portion 34 into the groove 3.

(21) FIG. 8 shows another embodiment of a luminaire 1 according to the invention, which differs from the embodiment illustrated in FIG. 1 by the configuration of the groove 3 and the clamping member 5. The clamping member 5 is in the assembling position. In the embodiment shown the angle of rotation between the assembled position, which is shown in dashed lines, and the assembling position is approximately 90°. When transferring the clamping member 5 into the assembling position the end 54 of the first connection area 51 has pivoted in the first undercut 31 and performed a translation. On the opposite inner side 22 of the housing frame 2, too, a clamping member 5 is provided in groove 3 in the assembling position. The clear distance of the two clamping members 5 is greater than the expansion of the lid 4. Thus, the lid 4 can be inserted into the housing frame 2 from above in a straight line after the clamping members 5 were arranged in groove 3 in the assembling position. It is also conceivable, however, to insert the clamping member 5 later.