DE10100645A1 - Damping element used as a base part of a system for acoustically decoupling suspension of different components comprises a ring with outer recesses - Google Patents

Abstract

Damping element used as a base part of a system for acoustically decoupling suspension of different components such as ceiling linings and wall shells comprises a ring (2) with outer recesses for receiving different connecting elements lying in a damping body (1) made of permanently elastic material. The damping element can be connected to the component via a channel-like opening in the damping body and secured using screws. Preferred Features: Hollow spaces (4a, 4b) are arranged within the ring and can be filled with pressurized air/gas and/or a suitable liquid.

Description

Today's acoustics and drywall practice has no or only in some areas inadequate damping mechanisms, which are mostly or always only used restrict to a specific purpose.

At this point, reference is made to the following patent and utility model documents:

• - Hanging device for false ceilings DE 31 28 260 A1,
• Sound-absorbing carrying device DE 38 24 178 A1, DE 38 16 284 A1,
• - sound-absorbing support system DE 39 03 147 C2,
• - supporting device for heat and / or sound insulation G 87 10 544.6,
• - Sound absorbing attachment for suspended ceilings, pipes and. Like. G 93 07 288.0,
• - Component for the production of a sound and / or heat insulating facing for Walls, ceilings or floors (EPO 000 118 A1),
• - Insulating element made of flexible material for hanging and fastening devices GM 78 23 617,
• - Vibration-damping fastening device, in particular for wall coverings and Acoustic ceilings in buildings GM 78 25 588.

A certain similarity of the present invention was found in the hanging device for Detect false ceilings DE 31 28 260 A1. On the one hand, their shortcomings lie in the already mentioned Limitation of their application, on the other hand in that, since the rubber is already under tension material is likely to tire at some point. In addition, that Material of the angle at which the rubber cylinder is clamped can cut into it and touches the screw or moves down under load on the rubber cylinder until on the washer. Both would cancel the effect.

Another option for resiliently hanging flexible facing shells would be Spring rail, patient no. unknown. However, I see the disadvantage here that vibrations are not in are damped in every direction, but vibrations spread spectrally.

This spring splint is used in practice and also appears in the 1998 Knauf product and system catalog (see photocopy excerpts). Examples of possible connection technology are also taken from the Knauf catalog. These elements have been tried and tested, and some of them have been conveniently adopted for the present invention.

The damping element ( Fig. 1-3, 14)

The idea was using an effective cushioning pontic, as well different connecting elements a coherent and combinable To create a system that is universal (including for example) for the installation of ceilings, slopes and Wall paneling Suitable ..

The invention is based on a damping body ( Fig. 2 ( 1 )) made of a permanently elastic material such as rubber, in which a ring ( Fig. 2 ( 2 )) is embedded, which encircles a groove ( Fig. 2 ( 3 )) to accommodate various connecting elements to a substructure. The elastic damping body is ideally bordered by its top and bottom of 2 perforated disks, which are rigidly connected to each other through this and through the center of the ring and the damping body with a sleeve. Through this sleeve, the damping element is connected to the building structure during installation by means of suitable screws or a practical suspension wire. If the damping element were loaded via the grooved ring in the installed state, the load would be separated via the intermediate damping body and distributed on the disc / sleeve assembly. The elastic damping body has cavities in its interior which, once inside the ring ( Fig. 2 ( 4 a)) and below ( Fig. 2 ( 4 b)) and optionally as in Fig. 14 are above the grooved ring, so that Similar to the effect of tennis balls, which can also be used to store audio boxes on top of them in order to prevent vibrations from being transmitted, optimal damping behavior can be achieved. Similar to these, a fabric should also be incorporated into the outer walls of the elastic part, so that the damping element is able to absorb larger loads without losing its effectiveness. In order to be able to load the DE not only vertically but also horizontally to its central axis, it is necessary to subdivide the cavities, at least those within the grooving, into at least 3 equal parts ( FIG. 3), so that one chamber of the load can counteract.

There are basically several ways of arranging the hollow chambers within the Damping body.  

The expediently cheapest one has to be found experimentally and is for others Types of application certainly different. To what extent it turns out to be cheap, the cavities fill with a substance other than air or compressed air, such as a damping oil, would have to be judged from another side.

In addition to its vibration-damping properties, the damping element also has a cold bridge interrupting effect, which makes its use also useful in areas appears where this rather than acoustic decoupling is required.

The two variants of the damping element (DE) shown in the drawings, cf. Fig. 1, 2 and 14, result from the fact that would be where occur for DE only unique forces in one direction in cases, as the examples in Figs. 4 13 (ceiling etc.), the air cushion is required only on one side would be and thus, in cases where it matters, a certain amount of space can be achieved.

The inner diameter of the grooving must also be smaller for fire protection reasons than the outside diameter of the perforated disc, mainly the force-absorbing one, since that elastic material of the damper is meltable or flammable.

At this point it should also be mentioned that the size of the DE's in this case depends on the cross section of the dry and. Acoustic construction usually used profile rail 60 × 27 × 06 is matched, but it is also with connecting elements other than those listed here, for example in machine and. Vehicle construction could find application. In principle, its size is variable.

The system of fasteners

The basic principle for all the fasteners listed here is that one is done mount the DE through the sleeve using a screw and dowel (or less firmly using a suspension wire) is connected to the structure, while the component to be acoustically decoupled (here one with plasterboard or Ferma cell panels planked substructure) over the connecting element, which is in the groove of the ring of the DE attacks, is suspended. It is therefore natural that the subject Component have no contact with the other parts of the DE, especially the perforated disks may. Likewise, the component suspended in this way must not come into direct contact with the structure at any point to have. In the seam area, joints are therefore necessary that make the component vibrate independently from the building. If necessary, these joints are finally covered with a permanently elastic mass, such as silicone grout, filled out.

In anticipation it should be noted here that the thickness of the sheet from which the connecting elements mainly exist, is slightly less than half the groove width of the DE, making two sheets placed one on top of the other fit loosely in the groove.

The C-rail anchor connector as the first system component ( Fig. 46) is a connector that can be plugged in at any point on a C-profile and is suitable for both direct cladding of ceilings and slopes by the DE through the hole in the middle with the is screwed or dowelled, a very space-saving variant, since the DE is partially recessed in the C-profile of the substructure (UK), cf. FIGS. 4 and 5, as well as for suspended ceilings by means of the conventional wire suspension by this by a thickening, such as an eye at the end of the wire is held from below through the hole of the DE's and, see FIG. Fig. 12, so that any size space between the ceiling and cladding is possible.

The connecting element consists of two sheets ( Fig. 7 and 8), each of which is provided around its center with a semicircular notch to one side for insertion into the groove of the DE. The size of the notch is determined here, as in the connecting elements described below, by the diameter in the groove of the DE. The sheets are provided on two sides with standard trapezoidal anchors ( Fig. 7 ( 1 ) and 8 ( 1 )), which are bent at right angles on the dash-two-dot line shown here. The inner dimension between the anchors of the upper plate ( Fig. 7) is slightly larger than the outer dimension of the lower one ( Fig. 8), so that both parts can be pushed over one another and later during assembly around the DE in its groove. The tabs in the middle of the edges ( Fig. 7 ( 2 ) and 8 ( 2 )) are used for stability and are bent by 180 ° flush with the notch, so that the tab of the upper plate down the gap of the lower notch and accordingly the tab of the lower sheet would fill the gap of the notch of the upper sheet. The trapezoidal anchor of the slide-in sheet is guided as a spacer to the bottom of the C-profile, so that the connector has a firm fit under the flanged edges of the C-profile rail after it has snapped into place.

The holes in the base plates ( Fig. 7 and 8 ( 3 )) lie exactly one above the other when pushed together and serve to secure during assembly before pushing on the C-profile rail by splint-like inserting a screw into each hole. This would be suitable for fast construction screws, which are abundant on such construction sites anyway and which also correspond to the size of the holes. During assembly, the connecting element can be preassembled with the DE and is then screwed or dowelled as a whole through the hole in the DE on the ceiling or slope. By choosing the appropriate screw-dowel connection, any level differences in the existing surfaces can be compensated for by slightly screwing the screw forward or backward, cf. Fig. 13.

The suspension bracket ( Fig. 11) as a second system component is only suitable for ceiling suspensions and is intended to open up the possibility of attaching a suspension wire from the outset to the damping element attached to the ceiling, to which the rest of the construction then hangs, cf. Fig. 10. The substructure can then be both a wooden substructure and a substructure made of metal rails, cf. Knauf p. 53 (see attachment). It would even be possible to use the DE twice, i.e. additionally using the C-rail anchor connector for a metal substructure or using the connecting element for components made of wood or plastic described below for a wooden substructure, provided that this makes sense for acoustic or other reasons. The clamp is, as mentioned in protection claim 3, made of sheet metal. The variant shown in FIGS. 9-11 also provides a sheet whose thickness, taken twice, is slightly less than the width of the groove of the DE. The blank of the element ( Fig. 9) should be bent in the middle along the two-dot chain line by 180 °. Two of these parts are then placed one inside the other upside down so that the holes of the two ends lie exactly one above the other, the clamp with the semicircular recesses grips the DE in its groove. As a closure and at the same time as a fastening for the suspension wire, a wire bracket is used, which encompasses the DE from below and the ends of which are bent in a hook shape

The edge suspension connectors described in the protection claims 4 and 5 ( Fig. 15-17 and 20-22) are primarily intended for the creation of the submersible plasterboard, which is planked on one or both sides and preferably on the ceiling and floor in front of existing walls to be clad are fastened, but a fastening to the flanks and an edge fastening for ceiling cladding would also be conceivable. The distance from the existing wall and wall shell is freely selectable and also allows a very small space, since the DE is as far as possible in the cross section of the C-profile or the wooden battens. This gap should of course be filled with insulation material here as in any other case.

The edge suspension connector for C-rails to which the DE is attached is shown in Figs. 15-17. The individual parts as a blank (unbent) are shown in FIGS. 18 and 19. The upper bracket ( Fig. 18), which encompasses the C-profile from the outside, is mainly used for securing purposes and for stabilization. Here, too, the bending edges provided are again shown as two-dot chain lines, which are then all bent at right angles.

To simplify the assembly, nub-like extensions going beyond a semicircle and the respective slot-shaped recess in the middle of the part-circular notches for the groove of the DE are used, so that the parts can snap into place. The tab of the safety bracket ( Fig. 18 above) is bent here as a springy bridge, but is also an important stabilizing element.

Since in the installed state, due to the notch opening on one side, the connecting element does not lie on the entire surface of the groove cheek and thus would not provide the necessary stability under load, especially since it allows the notch to spring apart to snap into the groove of the DE should be additionally weakened, and that at the point where the greatest force would attack under load, a small angle (arrow Fig. 19) should be built in to stabilize and close that gap in this critical area, the manufacturing technology according to Bending rests flat on the end face from the outside and in this case guided through the slot provided inwards and there z. B. is fixed by spot welding to the base plate.

The edge suspension connector for wooden slats is intended to offer the possibility of using a wooden substructure that is more favorable in terms of building biology. The variant shown in FIGS. 20-22 from three individual parts allows the use of any width dimensions of the wooden slats to a certain margin. Specifically, every width dimension would be conceivable within the framework of 50-70 mm, in that a side bracket on the sides of the upper and lower bracket designed as tabs can be plugged on and moved by an eyelet corresponding to the two tabs. This slidable side bracket has the same right-angled stop for the wooden battens as the upper bracket. As a result, the connecting element is open on one side, so that no particular thickness dimension is required for the wooden battens, provided that it is in the frame between 40 and 50 mm. As with the edge suspension connector for C-profiles, a lower bracket ( Fig. 24) is mainly used for securing. Upper and lower brackets are also provided with congruent holes for screwing the wooden battens and can also be snapped into the DE by means of the cams and the springy bridge.

Through the exclusive use of the standard size of wooden slats, in my opinion 55 × 38 mm, the connector could also be simplified without the sliding side bracket, i.e. on the same side as the other side (without drawing), so only two individual parts would be required, the outer bracket with Angle stop and the inner safety bracket, whereby of course the internal dimension of the connector must correspond to the slat width.

The bracket clamp for wooden slats ( Fig. 26, 27) is used to create a wooden substructure for ceiling cladding or suspension. It also consists of two parts of the same shape, but this time they are mirror-inverted and fastened together. The two brackets each have a base plate, which on one half have holes for screwing to the wooden battens, and on the other side again have the semicircular recess for the DE. At their ends, like the suspension clamp, there is a tab in the center of which there is a hole, but this time the two parts are connected to each other, which is best done with a rivet, so that the clamp remains movable at this point and can be placed around the DE in its groove like a handcuff. On the underside of the two individual parts, an elbow is attached (spot-welded) that serves both as a stop for the wooden battens and as an additional screw connection to it, for which there are also holes.

Since the clamp is screwed to the side of the wooden battens, and for the creation of a substructure if several of these are required anyway, they must be attached alternately.  

The connecting element for wooden or plastic components such as door and window frames ( Fig. 28 and 29) is probably the last and simplest of the connecting elements listed here. It consists of two identical, simple square sheets, which are optionally angled in two steps and only have the semicircular recess for the DE and holes for screwing to the components. While all of the connecting elements listed so far, apart from the connecting clamp made of wire, the sheet thickness was chosen so that two sheets placed one on top of the other fit loosely in the groove of the DE, the element here can be made from one layer slightly below the groove. So that the DE does not come into contact with the component, see section 1 of the description "The connecting elements", it can either have the step-like angling, which means that a comparatively large loss of space can be accepted, or it must be carried out, however, for this a sufficiently large countersunk hole is worked into the wall side of the component in question, in which the DE can then sit and work without contact, except via the connecting element. A continuous smaller hole, if possible in the middle of the countersunk hole, large enough to be able to insert screws and dowels for fastening the DE, can be closed again after installation by means of bunghole dowels or plastic knobs. The two parts of the connector are simply connected to the component by suitable screws, enclosing the DE in its groove in the recess on two sides. A further saving of space can be achieved by inserting the straight version connector into wooden components.

This type of suspension of components could be in the recording studio area or in heavily used areas Components such as entrance doors can be used.

Claims (15)

1.1 damping element ( Fig. 1) as a base part of a system for acoustically decoupling suspension of various components such. B. flexible wall shells, ceiling panels and others, characterized in that a groove ring ( Fig. 2 ( 2 )) with external recesses such as a groove for receiving various connecting elements, in a damping body ( Fig. 2 ( 1 )) from a permanently elastic Material is embedded, wherein the damping element through a channel-like through opening of the damping body through this and the ring through, by means of screws or the like, can be connected to the component or body. 1.2 damping element according to claim 1.1, however, the damping body from above and below is sandwiched between two perforated disks so that the holes of the disks align with the channel cover like opening of the damping body and the damping element through this can be connected to the component or structure by means of a screw or the like. 1.3 damping element according to claims 1.1 and 1.2 being through the opening of the damping body, as a spacer and support for transverse forces, runs a sleeve that the two Perforated disks connect so that the damping element by means of the hole in the sleeve Screw or the like. Can be connected to a component or structure. 1.4 damping element according to claims 1.1 and 1.3, but the damping body only on is a perforated disc and has the sleeve. 1.5 damping element according to claims 1.1 to 1.4, characterized in that there are cavities ( Fig. 2 and 3 ( 4 a, 4 b)) in its elastic part within the groove and below and / or above the groove ring, which may can be filled with compressed air / gas, or a liquid suitable for this purpose. 1.6 damping element according to claims 1.1 to 1.5, wherein in the outer walls of the elastic damping body a fabric is incorporated. 2. The system-associated connecting element for connecting the damping element according to claims 1.1 to 1.6 with a C-profile rail ( Fig. 4-6), wherein the damping element through the sleeve with a ceiling, slope or wall to be clad fixed or with a Suspension wire is suspended (more or less loosely), characterized in that two metal sheets are provided around their center to fit the groove of the damping element with a recess open on one side and can be inserted into one another from two sides into the groove of the damping element, whereby At least one of the sheets is provided with the customary, customary trapezoidal anchoring option and is bent at right angles to the base plates, so that the connecting element can be plugged into the open side of the C profile rail at any point. 3. Belonging to the system connecting clamp as a connecting link between the damping element to be permanently mounted on a ceiling according to claims 1.1 to 1.6 and a practical suspension wire for ceiling suspension devices ( Fig. 10 and 11), characterized in that two similarly shaped sheets, the damping element by semicircular recesses enclose from both sides in its groove and the two ends overlap so that the hook-shaped ends of a bracket are inserted through holes in the center of the overlap, which lie exactly one above the other in the assembled state, whereby the two parts of the connecting clamp are fastened together like a lock, whereby this bracket encompasses the damping element from below and the suspension wire can be attached to it. 4.1 belonging to the system edge suspension connector as a connecting element between a damping element according to claims 1.1 to 1.6 and the end of a C-profile rail ( Fig. 15-17), for the substructure of an acoustically decoupled, planked flexible front shell, the most important part of a base plate and two side cheeks attached to it, dimensioned according to the inside of a C-profile, so that it, seen from the cross-section of the C-profile, can be inserted between its flanged edges and its base, with the base plate on the front side an inward at right angles to it bent extension with a recess open to one side to match the groove of the damping element in order to be able to insert it into the groove of the damping element fastened to the floor, ceiling or flanks in front of a wall to be clad. 4.2 Edge suspension connector belonging to the system as in protection claim 4.1, the Connection by a U-shaped bow with a central part, which also follows one side has open recess matching the groove of the damping element, is supplemented, so that this is encircled from two sides in its groove, and the two at right angles bent tabs, the C-profile also from the front from the side reach around, there are holes in the cheeks and the tabs, which in the assembled state are congruent one above the other, so that both parts by the Sidewalls of the C-profile rail can be screwed together. 5.1 System-related edge suspension connector as a connecting element between a damping element according to claims 1.1 to 1.6 and the end of a wooden slat ( Fig. 20-22) for the substructure of an acoustically decoupled, flexible wall shell, planked on one side, the most important part of which is a sheet metal bracket with one of the Groove of the damping element is corresponding, open on one side, which has U-shaped, laterally bent tabs laterally, with holes for screwing with the wooden battens, and a second similar bracket that fits into the first, so that the damping element of two sides can be encompassed in its groove, the inside dimension of the tabs corresponding to the width of any standardized wooden battens; the outer pair of tabs, as a stop for the wooden battens, can have edges bent inwards on one side. 5.2 Edge suspension connector belonging to the system as in protection claim 5.1, whereby this however on one side has a clip on a side bracket, so that Connecting element is not set to a certain slat width, so realized that a Side of the upper and lower bracket is not bent at right angles, but tapered, congruent  is designed as a tab so that a side bracket fits snugly through an eyelet-like opening According to the tab, this can be plugged on and moved to the slat size used is, with this side bracket on one side a right-angled edge as a stop for the wooden battens. 6. belonging to the system bracket clip as a connecting element between a damping element according to claims 1.1 to 1.6, characterized in that it consists of two almost mirror-like individual parts, the base plate on the one hand holes for screwing with the wooden battens, and each has a semicircular recess for receiving the damping element the two individual parts can be connected at one end in a joint-like manner by rivets or the like ( FIGS. 26, 27). 7. The connecting element belonging to the system for connecting the damping element according to Claims 1.1 to 1.6 with components made of wood or plastic, such as. B. Door and window frames or sheet metal profiles, e.g. B. U-shaped, such that two similar sheets, the thickness of the width corresponds to the groove of the damping element, a semicircular recess corresponding to the Have diameter of the groove of the damping element so that they, this in its groove of two Surrounding sides, can be screwed to said components, the sheets can be bent twice at right angles in steps and thus as a spacer of the Damping element to act on the components or can be guided straight, for what in the component in question a hole must be worked to accommodate the damping element, so that the damping element cannot come into connection with the component in question. 8. The system includes a U-shaped rail made of sheet metal for the substructure of a double-sided one planked flexible wall shell, in the bottom of which large and regular intervals smaller holes are worked around it, the larger holes being the largest Diameter of the damping element according to claims 1.1 to 1.6 correspond to and around this around the small holes for screwing the profile rail to the connecting element Serve claim 7.