EP2320136B1 - Installation frame with fixing device - Google Patents

Description

The invention relates to a mounting frame, in particular for recessed lighting, with a fastening device. The fastening device allows the installation of the mounting frame in a section of a false ceiling. The false ceiling can be a suspended ceiling or any plate, such as an intermediate plate in a piece of furniture, a partition or an intermediate floor.

Recessed luminaires for mounting in such intermediate ceilings are known from the prior art. For example, in EP 0 870 982 A2 and DE 33 29 794 A1 each recessed lights described which are held by means of a screw thread in position. In each case, components of the mounting frame are moved against each other until the false ceiling is clamped. To secure the position, a spring component engages in the screw thread, thereby preventing it from slipping out. It proves to be disadvantageous on the one hand that the components must be moved against each other by hand or with the aid of a screwing tool, which is cumbersome especially in an overhead installation in a false ceiling. On the other hand, the described fuse complicates the disassembly of the mounting frame.

Furthermore, from the US 6,752,520 B2 a mounting frame with a locking bracket known, which can be moved from a mounting position to an extended position. In the mounting position of the locking bar is tangential to a base element of the frame. To move the pawl, a rod is provided, which is guided by hand to pivot the pawl to the outside. In order to dismantle the mounting frame, a screwdriver is needed.

The DE 10 2007 036 979 A1 describes a fastener for a recessed light. The fastener includes a locking member that can be moved relative to a base member between a mounting position and a locking position. In this case, in one embodiment, the locking element can be pivoted so far outwardly by a vertical axis that it engages over a ceiling part. In the swung-in state On the other hand, the locking element runs tangentially to the circumferential line of the installation frame.

In addition, from the DE 297 06 402 U1 a recessed luminaire, which includes a pair of rotary bolts for mounting the lamp. Once the recessed light is inserted into a ceiling cavity, the rotary latch are pivoted to its locking position to the outside and pulled against the undercut surface. In this case, a Formrichtgesperre allows axial movement only in the feed direction.

Furthermore, in DE 10 2005 032 264 A1 and US 5,236,157 Fastening devices for mounting frame described, which include a movable carriage. After the carriage has moved so far that the required voltage is applied to the false ceiling, the position taken is secured by a latching mechanism. Since the carriage is mounted on the outside of the mounting frame, the insertion of the mounting frame is made difficult in the space provided for mounting intermediate ceiling cutout.

In GB 2 104 950 A a fastening device is described in which the false ceiling is clamped by means of a compression spring. Again, it proves to be disadvantageous that the attachment mechanism is mounted on the outside of the lamp device, whereby insertion into a section of the false ceiling is difficult.

It is therefore an object of the invention to provide a mounting frame with fastening device available, which allows easy assembly and disassembly.

The object is achieved by a mounting frame according to claim 1. The force required for clamping the false ceiling generated by a first spring element, and a part of the fastening device in the cross section of the mounting frame is displaced to facilitate insertion into the false ceiling.

The mounting frame according to the invention in this case has a support element, which rests in the installed state of the mounting frame on a first surface of the false ceiling, and a pressing member which rests on a second surface of the false ceiling, wherein the first and second surfaces face each other. The pressure element is mounted in a direction to the support member and movable away from it. Furthermore, the mounting frame according to the invention has a first spring element, which exerts an axial force on the contact pressure element in the direction of the support element. In the assembled state, the intermediate ceiling between the contact pressure element and the support element is clamped in this way. In addition, the pressing element according to the invention in a plane parallel to the mounting plane of the mounting frame displaced to form a first, retracted state in which contact pressure for insertion of the mounting frame in the cut is at least partially retracted within the clear width of the cutout, and a second, extended state to form, in which the pressing element is extended over the edge of the clear width of the cutout and the support element is substantially opposite to clamp the false ceiling. Due to the displaceability of the pressing element so that the insertion of the mounting frame is facilitated in the cutout of the false ceiling. Furthermore, the pressing element in the second, extended state prevents slipping out of the mounting frame from the false ceiling.

In a preferred embodiment, the pressing element is pivotally mounted. This makes it possible to put the mounting frame in a first, retracted state in which the cross section of the mounting frame is minimized at the level of one or more pressing elements, and a simple insertion of the mounting frame is made possible in the cutout of a false ceiling. Furthermore, a swinging of the pressing element is thereby possible, whereby the pressing element comes to rest on a back of the false ceiling. Swinging is a particularly simple method the cross-sectional enlargement, which can be easily performed by a fitter even with limited visibility. In further embodiments, the pressing element is displaceable in a different manner, for example, it may be displaceable along an axis.

In a particularly advantageous embodiment, the mounting frame also has a resting surface against which presses the pressing member in the first, retracted state, wherein the axial distance between the rest surface and the support element is greater than the thickness of the false ceiling. In this way, a bias of the first spring element results. Upon extension of the pressing element this is then guided by the bias on the surface of the false ceiling, without the fitter would have to spend a force for this purpose. For mounting, it is therefore only necessary to shift the contact element horizontally outwards. A particular advantage results from the fact that the force required to clamp the false ceiling does not have to be used by the installer himself.

In a preferred embodiment, the mounting frame moreover has a holding surface which prevents the pressing element from moving back from the second, extended state into the first, retracted state. The holding surface extends substantially perpendicular to the mounting plane. In this way, unintentional disassembly of the mounting frame is avoided.

In a preferred embodiment, the mounting frame has a biasing element, which presses the pressing element in the first, retracted state. The biasing member may be formed, for example, as a coil spring or leaf spring. Since the first, retracted state corresponds to the state during assembly, an accidental transition to the second, extended state during assembly is prevented. Furthermore, this ensures that a fixing of the mounting frame only happens when the fitter actively displaces the contact pressure.

In a preferred embodiment, the contact pressure element is guided by means of a guide device in the axial direction. This ensures that the contact element moves only in the axial direction, and accidental avoidance in another direction is avoided. Especially when mounting a heavier recessed light it can make sense to use a first spring element with a high spring constant. The converted by such a spring during assembly forces are directed in this embodiment by the guide device, so that damage to the mounting frame and / or the false ceiling and injury to the fitter is avoided when improper installation.

According to a preferred embodiment, the guide device is rod-shaped and the contact pressure element has a guide region, wherein the guide region engages around the rod-shaped guide device. For this purpose, the guide region can have, for example, one or more through holes or one or more clip elements. This offers the advantage that the contact pressure element can only be moved along the rod. Furthermore, this allows a secure guidance of the contact pressure element. The guide by gripping the rod-shaped guide device also reduces a risk of injury to the fitter.

In a particularly preferred embodiment, the first spring element is designed as a spiral spring, which is arranged along the guide device. In particular, the spiral spring can be arranged around the guide rod. This results in a space-saving arrangement of guide means, first spring element and contact pressure.

According to a preferred embodiment, at least two pressing elements are present, which are formed in pairs as wing elements. This offers the advantage that with the help of a single handle two pressing elements can be extended simultaneously by the installer. Furthermore, a paired arrangement allows a horizontal bias of two contact elements by means of a single, biasing member.

According to a preferred embodiment, the support element is designed as a circumferential or at least partially circumferential flange. This results on the one hand, the advantage that a possibly existing horizontal gap between the mounting frame and false ceiling is covered by the support element. On the other hand, this results in the possibility to provide several pressing elements whose forces act against the same support element. In a preferred embodiment, the support element or the flange is round, in particular circular. In other embodiments, the flange may be angular, in particular rectangular, eg square. It is also advantageous if the outer contour of the flange is adapted to the shape of the mounting frame. This is the case, for example, with a circular flange which is coupled to a cylindrical mounting ring.

According to a preferred embodiment, the mounting frame further comprises a blocking element at a fixed distance from the support element. On a part of its surface, the blocking element has a surface structure into which a portion of the surface of the contact pressure element can couple. As a result, a frictional connection between the contact pressure element and the blocking element is generated, which counteracts an axial movement of the pressing element. Such a coupled state prevents in particular a removal of the contact pressure element from the false ceiling in the installed state. This offers the advantage that a part of the force acting in the installed state, which is required for clamping the false ceiling, can be delivered via the blocking element to the mounting frame. This results in a securing mechanism, which counteracts in addition to the first spring element inadvertent disassembly of the mounting frame. At the same time, the carrying capacity is distributed between the first spring element and the blocking element, so that the first spring element is relieved. In particular, the blocking element may be integral with other components of the mounting frame, e.g. be formed on a mounting ring.

In a preferred embodiment, the blocking element in this case has a notch, and the pressing member has a projection which can engage in the notch. The formation of the surface structure as a notch or projection allows easy production of the components. Further, the projection may be sized to allow easy coupling into the notch. The notch or the projection may extend in particular in a direction parallel to the installation plane. In this way, there is a larger contact surface between notch and projection, whereby the force acting in the clamped state is better distributed.

In a preferred embodiment, there are multiple parallel notches and / or parallel protrusions. The notches or projections are each spaced apart in the axial direction, ie perpendicular to the installation plane. In this way, there are several possible axial positions in which the pressing element can engage in the locking element. In particular, this preferred embodiment allows a mounting of the mounting frame in false ceilings of different thicknesses. At different thicknesses of the false ceiling, the pressing element has different distances to the support element in the installed state of the mounting frame. The arrangement of a plurality of notches or projections in the axial direction therefore allows securing of the pressing element for different thicknesses of the false ceiling.

In a preferred embodiment, the pressing element is also tiltable about an axis which is perpendicular to the axial direction. The pressing element can assume a first, untilted and a second, tilted state. In the preferred embodiment, the surface structures of the pressing element or of the blocking element engage only in the second, tilted state. In this state results in a contact surface over which the frictional connection is generated, which counteracts an axial movement of the pressing member. By contrast, in the first embodiment, in the first embodiment, the surface structures are not coupled, so that unimpeded movement of the contact element in the axial direction is possible. Therefore, the first, untilted state has the advantage that the pressure element can easily be guided during assembly against the surface of the false ceiling and can be removed from there. To secure the pressing element in the installed state, the pressing element is transferred to the second, tilted state in this embodiment. In this state, the coupled surface structures act as an additional securing mechanism adjacent to the first spring element. The tiltability of the contact element allows an easy transfer from the first to the second state, which facilitates the assembly, in particular with limited visibility and overhead mounting.

According to a preferred embodiment, the pressing element is transferred in the installed state of the mounting frame by a bearing force in the second, tilted state. The contact force is created by the pressing of the pressing element on the O-beifläche the false ceiling by the first spring element, whereby a torque is generated, which causes a tilting of the pressing element. In the second, tilted state generated thereby, the surface structures of the pressing element and of the blocking element engage in one another, whereby an axial movement of the pressing element and thus disassembly of the mounting frame is prevented. This offers the advantage that in the installed state automatically the second, tilted state is generated, which is an additional Securing the mounting frame causes. This also prevents inadvertent tilting of the pressing element in the first, untilted state.

According to a preferred embodiment, the pressing element also has an operating section, via which a fitter can exert a force on the contact pressure element. The force generates a torque which transfers the contact pressure element into the first, untilted state. In this state, the surface structures of the pressing element and the blocking element are not coupled. This allows an axial movement of the pressing element and thus a facilitated disassembly of the mounting frame. The operating section allows a simple, tool-free disassembly, which is easily possible even with limited visibility and an overhead work of the mechanic. The operating section may be formed, for example, as an edge or surface on the contact pressure element. Alternatively, it can also be attached to the pressing element as an additional, outwardly pointing handle.

According to a preferred embodiment, the mounting frame on several pressing elements. This offers the advantage that the forces acting in the mounted state are distributed to several pressing elements. Should fail due to damage to one of the pressing elements, the mounting frame is held by the other pressing elements. Furthermore, an arrangement of several pressing elements at different positions of the mounting frame allows a more even distribution of forces. This results in a more advantageous distribution of force both in the mounting frame and in the false ceiling, which counteracts premature material fatigue.

In a preferred embodiment, two pressing elements are arranged in pairs. The contact elements can be identical. Particularly preferred is the paired arrangement of two identical pressing elements, which are rotated by 180 ° to each other. This results in an advantage in that only one type of pressing must be made. This reduces the production costs.

Figur 1

zeigt eine perspektivische Ansicht des Einbaurahmens, der in einer Zwischendecke montiert ist.

Figur 2

zeigt eine Aufsicht auf den Einbaurahmen im eingebauten Zustand.

Figur 3

zeigt eine perspektivische Ansicht des Einbaurahmens im unmontierten Zustand.

Figur 4

zeigt eine Detailansicht von zwei Anpresselementen des Einbaurahmens im unmontierten Zustand vom Äußeren des Einbaurahmens aus betrachtet.

Figur 5

zeigt eine Detailansicht zweier Anpresselemente des Einbaurahmens im unmontierten Zustand aus einer Perspektive vom Inneren des Einbaurahmens aus.

Figur 6

zeigt das Anpresselement.

Figur 7a

zeigt eine Explosionsdarstellung des Einbaurahmens.

Figur 7b

zeigt eine Darstellung des zusammengesetzten Einbaurahmens aus Figur 7a.

Figur 8

zeigt eine weitere Ausführungsform des Einbaurahmens.

Further advantages and constructive details of the present invention will become apparent from the following description of a preferred embodiment taken in conjunction with the accompanying drawings.

FIG. 1

shows a perspective view of the mounting frame, which is mounted in a false ceiling.

FIG. 2

shows a plan view of the mounting frame in the installed state.

FIG. 3

shows a perspective view of the mounting frame in the unmounted state.

FIG. 4

shows a detailed view of two pressing elements of the mounting frame in the unmounted state viewed from the outside of the mounting frame.

FIG. 5

shows a detailed view of two pressing elements of the mounting frame in the unmounted state from a perspective of the interior of the mounting frame.

FIG. 6

shows the contact element.

Figure 7a

shows an exploded view of the mounting frame.

FIG. 7b

shows a representation of the assembled mounting frame Figure 7a ,

FIG. 8

shows a further embodiment of the mounting frame.

The installation frame according to the invention of the fastening device is shown using the example of a mounting frame for a circular downlight.

FIG. 1 shows the mounting frame 1 in a preferred embodiment, which is inserted into the false ceiling 100. The mounting frame 1 comprises a cylindrical side wall 40. On the outer side of the side wall 40 a plurality of pressing elements 30 are arranged, which are formed in this embodiment as wing elements. In FIG. 1 not visible is the support element 20, which is located on the opposite side of the false ceiling 100. This is in FIG. 3 shown. There it can be seen that the support element 20, the side wall 40 terminates as a circumferential flange on the underside. The side wall 40 and the support element 20 are rigidly connected together. When inserting of the mounting frame 1 in the false ceiling 100, the support element 20 remains on that side of the false ceiling 100, from which the assembly takes place.

Returning to FIG. 1 It can be seen that the pressing elements 30 rest on the false ceiling 100. They lie opposite the flange-like support element 20, and clamp together with this the false ceiling 100 a. In order to enable an axial movement of the pressing elements 30 away from the false ceiling 100, the mounting frame 1 has a rod-shaped guide device 41. Along the guide means 41, the pressing elements can be moved to the false ceiling 100 to or from this. In those portions 401 of the mounting frame 1, on which the pressing elements 30 are arranged, the side wall 40 is extended in a direction away from the false ceiling 100. The extended portion 401 in this case has a vertical gap 402, in which the rod-shaped guide means 41 is arranged. The guide device 41 is attached at one end to the side wall 40. At the other end it is held in position by a head element 42. The head element 42 is attached to the extended portion 401 of the side wall. The thus fixed guide means 41 allows a guided movement of the pressing member 30 in the axial direction. Also in FIG. 1 it can be seen that the pressing elements 30 abut in the mounted state on the outer surface of the side wall 40. In this way, a moving back of the pressing elements 30 is prevented in the interior of the mounting frame 1.

FIG. 2 shows the same installation frame FIG. 1 in a supervision. In this embodiment, four wing-shaped pressing elements 30 can be seen, which are arranged in pairs. In each case, two wing-shaped pressing elements 30 are mounted on a guide device 41. In FIG. 2 is clearly seen how the cross-sectional area of the mounting frame 1 is increased by the pressing elements 30 are extended from the interior of the mounting frame 1. In this case, the contact pressure elements 30 are in the region of their Flügelendbereiche 303 on the outer surface of the side wall 40 at.

FIG. 3 shows the mounting frame 1 in the unmounted state. In this case, the pressing elements 30 rest on an upper resting surface 403 of the side wall 40 and are pivoted into the interior of the mounting frame 1. In this case, the cross-sectional area of the mounting frame 1 is minimized, so that a performing of the mounting frame 1 by a Section of the false ceiling 100 is facilitated for assembly. From the FIGS. 1 and 3 It can also be seen that the contact pressure elements 30 in the unassembled state of the installation frame have a greater axial distance to the support element 20 than in the mounted state. For an attachment of the mounting frame 1 to the false ceiling 100, it is therefore necessary to shift the pressing elements to the outside and at the same time to move them downwards, in the direction of the support element 20.

In the mounting frame according to the invention, the latter movement is facilitated by a first spring element 31, as in FIG. 4 is shown. The first spring element 31 is formed in the illustrated embodiment as a spiral spring, which is plugged onto the rod-shaped guide means 41 and is located between the paired pressing members 30 and the head member 42. By fixing the coil spring 31 to the head element 42, the coil spring 31 exerts an axial force on the pressing elements, which acts downward, in the direction of the support element 20. The pressing elements 30 in this case have guide regions 301, which encompass the guide device 41. In this way, a guidance of the pressing elements 30 in the axial direction along the guide device is made possible. In addition, this storage also allows pivoting of the pressing elements 30 in a horizontal plane around the guide device 41 around. In the in FIG. 4 illustrated first, retracted state, the pressing elements 30 are on a resting surface 403 of the side wall 40. As a result, an axial movement of the pressing elements 30 in the direction of the support element 20 is prevented.

In order to secure the mounting frame, the fitter exerts a force on the Flügelendbereiche 303 of the pressing members 30 to push them outward on the side wall 40 to. This causes a torque which leads to a rotation of the pressing members 30 around the guide means 41 around. In this way, the fitter swivels the pressing elements 30 outwards. As a result, the pressing elements 30 are transferred to a second, pivoted-out state, in which they no longer rest on the resting surface 403. The coil spring 31 generates an axial force which presses the pressing elements 30 downwards in the direction of the support element 20. The movement ends when the pressing elements 30 rest on the surface of the false ceiling 100, which is thereby clamped between the pressing elements 30 and the support element 20.

Also in FIG. 4 a biasing element in the form of a second spring element 32 can be seen, which is formed in this embodiment as a spiral spring. The second spring element 32 is also mounted on the guide means 41 and is located between two guide portions 301 of the two paired pressing members 30. The ends of the coil spring 32 engage in the guide portions 301 of the wing members 30 such that the coil spring 32, the wing elements 30th pushed inward, in the first, swung state. This prevents inadvertent pivoting of the wing elements 30 to the outside. In the assembled state, the second spring element 32 presses the pressing elements 30 with their Flügelendbereichen 303 against the outer wall 40. In this way, the horizontal position of the pressing is fixed and an unintentional intermediate pivoting avoided.

FIG. 6 shows a detailed view of the pressing member 30. The pressing member 30 is formed in the preferred embodiment as a wing member comprising a wing outer portion 303 and guide portions 301 has. In the illustrated embodiment, each pressing element has two guide regions 301 which are approximately at right angles to the wing outer region 303. The guide portions 301 each have a through hole 305. The through holes 305 surround the guide 41, which is fixed to the side wall 40. The through-holes 305 have a smooth inner surface in the preferred embodiment. Both the through holes 305 and the guide 41 have a circular cross section. The diameter of the through-holes 305 is slightly larger than the diameter of the rod-shaped guide device 41. This type of mounting of the contact-pressure element 30 enables three types of movement: a) axial displacement of the contact-pressure element 30 on the guide device 41, b) pivoting of the contact-pressure element 30 around the guide means 41 in a horizontal plane, and c) tilting the pressing member 30 about an axis which is perpendicular to the guide means 41. The latter tilting movement is made possible in that the through holes 305 have a larger diameter than the guide means 41. The effect of the tilting movement will be described in detail in the next section.

The pressing member 30 further has projections 302 on a surface of one of its guide portions 301. In that, in FIG. 4 shown first, pivoted state, the projections are oriented toward the interior of the mounting frame. This corresponds to the Condition in which the mounting frame is mounted. In the second, pivoted-out state, the protrusions 302 face to the side, toward the side wall 40. As in FIG FIG. 4 shown, the side wall 40 in this area a plurality of parallel notches 406 on. The notches 406 are arranged along the gap 402 and surround the guide device 41. As described, the guide regions 301 of the pressing elements 30 do not engage around the rod-shaped guide device 41 in a form-fitting manner, but leave play. As a result, a tilting of the pressing elements 30 about an axis perpendicular to the guide device 40 is made possible. The gap 402, the guide regions 301, the projections 302 and the guide device 41 are dimensioned such that the projections 302 do not couple into the notches 406 when the pressing elements are in a first, untilted state. Only by tilting the pressing elements 30, the projections 302 engage in the notches 406, so that a bearing surface is formed, via which a force acts on the pressing member 30, which counteracts an axial movement of the pressing member 30. The pressing member 30 is in the second, tilted state, the axial position of the pressing member 30 with respect to the support member 20 is thus fixed.

Furthermore, the pressing elements 30 have foot sections 304 in the lower region, as can be seen in FIG. When the first spring element 31 presses the pressing elements 30 against the false ceiling 100, a bearing force acts on these foot sections 304. In this way, a torque is generated, which causes a tilting of the pressing elements 30 about an axis perpendicular to the guide device 41. As a result, the pressing elements are transferred to the second, tilted state. In this way, the projections 302 engage with the notches 406, whereby a locking mechanism is generated, which prevents unintentional release of the pressing elements 30 in the mounted state of the mounting frame 1.

Furthermore, the pressing elements 30 have operating sections 306, as in FIG FIG. 6 is recognizable. The operating portions 306 are formed in the illustrated embodiment as projecting elements on the guide portions 301, and point in the second, extended state of the mounting frame in the direction of its interior. In this way, they are accessible to the fitter, so that this can spend a disassembly on the operating section 306 a force on the pressing member 30 upwards. Since the operating sections 306 are located significantly closer to the guide device 41 than the foot sections 304, this exertion of force generates a torque which counteracts the tilting of the pressing elements 30.

This transfers the pressing elements 30 for the purpose of disassembly of the mounting frame 1 in the first, untilted state.

Figure 7a shows the same preferred embodiment of the mounting frame 1 in an exploded view. Here, the smooth outer surface of the side wall 40 is not shown, so that support ribs 45 are visible. The head element 42 is attached to an extended portion 401 of the side wall 40. The guide device 41 is mounted delimitingly by the head element 42 and the side wall 40. This is inserted at its upper end in the head element 42 and at its lower end in a hole 404 which is located in an intermediate rib of the side wall 40. As a result, the guide device 41 is fixed in an axial direction, perpendicular to the plane defined by the support element 20 level. In particular, the guide means 41 is also not rotatably mounted.

The guide device 41 serves to arrange the first spring element 31, a pair of wing elements 30 and the second spring element 32. The spring element 31 designed as a spiral spring engages against the head element 42 at the upper end. At the lower end, the first spring element 31 engages against the arrangement consisting of two pressing elements 30 and second spring element 32, as shown in FIG FIG. 4 can be seen more clearly. In this case, the pressing elements 30 each have two guide regions 301. These are nested in the arrangement on the guide device 41 such that the upper guide region of the second contact pressure element follows the upper guide region of the first contact pressure element. Then follows the second spring element 32, which is followed by the lower guide region of the first pressing element, followed by the lower guide region of the second pressing element. The second spring element 32 separates in this way the two upper guide areas of the two lower guide areas. Furthermore, engages by this structure, the second spring element 32 at its one end against the first pressing member, and at its second end against the second pressing member. The spring force generated therefore acts on both wing elements and is effective to pivot both pressing elements in the direction of the interior of the mounting frame 1. For the purpose of assembly, the fitter presses the pressing elements 30 outward at their wing end regions 303, so that the second spring element 32 is additionally tensioned. In this case, the wing elements 30 slide downwards, in the direction of the support element 20. In the mounted state, the wing elements 30 abut against an outer surface of the side wall 40 in the region of their wing outer regions 303. The spring force of The second spring element 32 presses horizontally the wing outer regions 303 against the side wall 40. This causes a horizontal fixation of the wing elements 30th

To disassemble the mounting frame, the installer attacks from the interior of the mounting frame 1 to the wing elements 30. In this case, it is advantageous if it acts on the operating sections 306 in order to transfer the wing elements 30 into the first, non-tilted state. He then pulls the wing elements along the guide device 41 upwards. Once the wing members 30 are above the side wall 40, the wing members 30, driven by the force of the second spring member 32, pivot inwardly. In this position, the wing elements are held by the second spring element 32. The force caused by the first spring element 31 now acts against the resting surface 403 of the side wall 40.

FIG. 8 shows a further embodiment in which the biasing element is formed by two leaf springs 32 '. Alternatively, the use of only one or more than two leaf springs is possible. The leaf springs engage in a fastening device 307, which is provided in the contact pressure element 30 ', and on a guide device 308 on the opposing pressure element 30'. In the illustrated embodiment, each leaf spring 32 'engages at one end thereof into one and at its other end into the other end of the paired pressing members. In this way, a bias voltage is achieved, which presses the pressing elements 30 'with their wing outer region 303 in the direction of the interior of the mounting frame 1.

In addition to the preferred embodiment described in detail here, further embodiments are conceivable for the person skilled in the art. Thus, for example, it is possible for the head element 42 to be fastened in different positions at different axial distances from the support element 20. In this way, the mounting frame for different thicknesses of the false ceiling can be adjusted. Furthermore, it is possible in another embodiment that the notches 406 are mounted on the guide device 41 for securing the axial position of the contact pressure element. In this way, the restraining force occurring is in an area in which the fitter can not intervene directly. Such a design would additionally minimize a risk of injury.

LIST OF REFERENCE NUMBERS

1

mounting frame

100

false ceiling

20

support element

30, 30 '

presser

301

guide region

302

head Start

303

Flügelendbereiche

304

foot section

305

Through Hole

306

operating section

307

fastening device

308

guide means

31

first spring element

32, 32 '

second spring element

40

Side wall

401

extended section

402

gap

403

rest area

404

hole

405

supporting rib

406

score

41

guide means

42

header

Claims (15)

1. Installation frame (1), in particular for recessed lights, to be fixed in a cut-out of a suspended ceiling (100), wherein the installation frame (1) comprises the following: a locating element (20), which in the fitted state of the installation frame (1) lies on a first surface of the suspended ceiling (100),
   at least one clamping element (30; 30'), which in the fitted state of the installation frame (1) lies on a second surface of the suspended ceiling (100), which lies opposite the first surface, wherein the clamping element (30; 30') is mounted on the locating element (20) movably towards and away from it, in a direction perpendicular to an installation level of the installation frame which in the fitted state of the installation frame (1) runs parallel to the suspended ceiling (100), and
   a first spring element (31), which exerts a force onto the clamping element (30; 30') in the direction of the locating element (20),
   wherein the clamping element (30; 30') can be displaced on a level parallel to the installation level, to form a first inserted state, and to form a second extended state, in which the clamping element is moved outwards from the installation frame to clamp the suspended ceiling between the clamping element (30; 30') and the locating element (20), wherein the clamping element is shifted in the first inserted state in the direction of the inside of the installation frame, to allow the installation frame (1) to be introduced into the cut-out, wherein the clamping element (30; 30') is formed as a wing element, which comprises an outer wing area (303) and guide areas (301) characterised in that in the first inserted state, the outer wing area (303) of the clamping element (30; 30') points into the inside of the installation frame (1).
2. Installation frame (1) according to claim 1, wherein the clamping element (30; 30') is mounted such that it can swivel in order to form the first inserted state and the second extended state, wherein the swivel axis runs in particular perpendicular to the installation level of the installation frame (1).
3. Installation frame (1) according to one of the previous claims, wherein the installation frame (1) also comprises a rest surface (403) so that the first spring element (31) presses the clamping element (30; 30') in the first inserted state against the rest surface (403), wherein the rest surface holds the clamping element (30; 30') at a distance from the locating element (20).
4. Installation frame (1) according to one of the previous claims, which furthermore has a holding surface, wherein the holding surface holds back the clamping element (30; 30') in the second extended state.
5. Installation frame (1) according to one of the previous claims, wherein the installation frame (1) comprises a pretensioning element, in particular a second spring element (32; 32'), which is arranged to exert a force onto the clamping element (30; 30') in order to press the clamping element (30; 30') into the first inserted state.
6. Installation frame according to one of the previous claims, wherein the clamping element (30; 30') is guided by means of a guide device (41) which runs substantially in an axial direction.
7. Installation frame (1) according to claim 6, wherein the guide device (41) is made rod-shaped, and the clamping element (30; 30') has a guide area (301) which substantially encompasses the guide device (41).
8. Installation frame (1) according to claim 6 or 7, wherein the first spring element (31) includes a spiral spring which is arranged along the guide device (41).
9. Installation frame (1) according to claim 6, 7 or 8, which comprises two clamping elements (30; 30') which are formed as wing elements, wherein the two clamping elements (30; 30') are guided by means of the same guide device (41).
10. Installation frame (1) according to one of the previous claims which furthermore comprises a locking element, which is adjacent to the clamping element (30; 30') and which is at a fixed axial distance from the locating element (20), wherein the locking element has on a first partial area of its surface a surface structure which is suitable for engaging in a form-fitting or frictional manner with a second partial area of the surface of the clamping element (30; 30') to generate a force fit which counteracts an axial movement of the clamping element (30; 30').
11. Installation frame (1) according to claim 10, wherein the first partial area has a groove (406) and whereby the second partial area has a protrusion (302) wherein the protrusion is arranged to engage in the groove (406).
12. Installation frame (1) according to claim 10 or 11, wherein the first partial area and / or the second partial area has a sequence of substantially parallel grooves (406) or projections (302), whereby the sequence is arranged axially so that an engagement in various axial positions is possible.
13. Installation frame (1) according to claims 10 to 12, wherein the clamping element (30; 30') can furthermore be tilted about an axis which runs perpendicular to the axial direction, in order to generate a first non-tilted and a second tilted state, wherein the first partial area and the second partial area do not engage in the first non-tilted state, in order to allow an axial movement of the clamping element (30; 30'), and wherein the first partial area and the second partial area engage in the second tilted state, in order to generate the force fit.
14. Installation frame (1) according to claim 13, wherein the clamping element (30; 30') comprises a foot section (304) which, in the fitted state, lies on the second surface, whereby a resting force is exerted on the clamping element (30; 30'), which transfers the clamping element (30; 30') into the second tilted state, to prevent the clamping element (30; 30') from being removed from the second surface.
15. Installation frame (1) according to one of the previous claims, which comprises multiple clamping elements or pairs of clamping elements (30; 30'), in particular one or more pairs of in each case identical clamping elements (30; 30'), at multiple points on the circumference of the installation frame.

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