DE4130454A1 - Vibration-damping connector for steps - comprises intermediate section with push-fit connection to wooden step and rigid connection to steel or concrete base structure - Google Patents

Abstract

The noise and vibration damping connector is used on a building. The connection dampens vibration, movement and sounds between for example, wooden steps and a steel, concrete or aluminium sub-structure. The connection isolates the step through an intermediate fixing (2) which has a push-fit connection to the external section (8) and is more rigidly connected (4) to the base structure. USE/ADVANTAGE - Vibration and noise damping connector for steps reduces sound, heat and vibration transmission in buildings.

Description

The invention relates to the damping of vibrations, in particular when assembling compo nenten made of organic or mineral materials on support structures, preferably for construction Use in, stairs, facades or other elements with wooden, concrete, or metal substructure tion, for example stairs, the steps of which are on metallic or support structures made of others Materials in most cases are made of steel or aluminum profile tubes.

The invention includes definition and application for a fastening mechanism vibration-isolating properties that include thermal and acoustic damping and acoustically damping, additional measures to reduce the transmission of vibrations to the wearer constructions made of hollow profiles. They are used indoors and outdoors for insulation for accessories play of stairs against the substructure and the substructure against building walls and floor and other mounting bases.

The object of the invention is to define the application of the fastening mechanism which is simple, producible with high reproducibility, noise and impact sound insulating, as a safe assembly element element for fastening components, for example stairs made of different materials, Wood, plastic, glass, minerals, composite materials, etc. can be used.

The connecting element is intended to be used with the tools and tools common in the craft and DIY sectors Process can be processed and assembled. The step (s) should be damaged or renovated tion can be removed from the substructure with little effort.

Stairs are known with metallic substructures, which are usually made of profiled tubes are on which the stairs are screwed. It is also known between steps and insert the support structure rubber or other insulating washers. However, these disks serve the compensation of manufacturing tolerances and level differences of the assembly points. A reduction in acoustic transmission properties are not achieved. The vibrations are caused by the Screw connection directly from the stair step to the stair substructure and from this to the as Base ceilings or walls of the building.

The device according to the invention includes one to be connected by absorbent material end elements decoupled fastening mechanism, the use of which through complementary Damping measures in the carrier profile is optimized and is based on several advantageous execution  examples described and shown in sketches. The transmission of building and impact sound vibrations between the individual components, cladding, step (s), stairs pen substructure and building wall / floor is by using the Be invention fastening mechanism significantly reduced. The solution according to the invention is in several versions Example described and illustrated.

Due to the natural surface texture of the bore wall, the Trep is securely fixed against the deformation body, its screw connection and thus against the stairs below given construction. At the same time, the deformability of the deformation body means that the troughs become knockouts of the mounting holes and level differences of the support points compensated.

For higher load requirements, the deformation body is designed with a meandering shape Provide retraction protection, which has claws or segmented cutting edges on the outer contour at, a corresponding deformation of the deformation body penetrate into the wall of the bore and claw in the material of the step. The claws are in to increase the unidirectional effect the tightening direction of the screw is bent or the retraction device is funnel-shaped, like a plate spring executed. Due to the deformation of the deformation body when tightening the screw Retraction device in the direction of the tightening torque and pressed outwards into the bore wall, whereby the claws wedge in the bore wall while the deformation body solidifies. Outward In the direction of the tightening torque, the entire complex is additionally hardened.

The holes are useful for the assembly of components made of mineral materials cast with the manufacture of the stage or cast in a standardized grid before delivery is working. The same applies mutatis mutandis to stairs made of other hard, brittle, for example minerali materials (granite, marble, glass). The deformation body is used to attach these steps to Scope with a coating of a hard material, for example a rubber / silicon carbide Mix.

The layer containing the hard material is used either after the production of the deformation body Mixture of rubber solution and hard material applied, vulcanized as a prefabricated ring or as Sandwich component made.

This means that the fastening element is also suitable for concealed installation of granite and marble steps, if necessary suitable as composite material.  

By a surface pressure adapted to the strength values of the step and carrier profile material to reach the displacer, the screws are specified during assembly with a torque tightened. This assembly technique is made possible by the fact that under the screw a washer is mounted on the head, which enables reproducible friction values during assembly light.

To the propagation of vibrations in the stair substructure and / or support structure tion, (railings, stair supports, so-called harps), which are usually made from profiled tubes are to be further reduced, these profile tubes are also used in indoor and living areas a vibration absorbing filling consisting of preferably inert mineral Substances, for example, expanded clay, expanded glass, gravel, grit, or other substances with sufficient absorption behavior and good pourability, for example cork granulate in a preferably loose fill padded.

Filling is preferably carried out after the stairs have been fully assembled through the appropriate filler opening openings at the top of the stair substructure. These filling openings are made after filling closed with plugs adapted to the surface of the stairs.

It is known to lay floors, walls, and ceilings around cork for design and insulation to achieve appropriate impact sound insulation and thermal insulation. The use of cork is also recommended due to the natural resistance of the material to fungi and pests.

To dampen the impact sound at the point of origin, the top of the step is optionally available with a Impact sound absorbing covering, for example cork. The solution according to the invention sees the further before, the surfaces of steps and, if necessary, stair substructures as to produce finished coated components. This eliminates the above-mentioned in the conventional Coating, especially when using cork surfaces covering work the surface to be covered.

The elements according to the invention can be used like commercially available profile components. You can the usual tools that can be used when assembling components. Semi-finished products and assembly techniques apply. The use of special tools or others that make work more difficult the facilities is not required. This means that there is an exact transition of the surfaces and edge structures of the individual elements guaranteed.  

The use as a standardizable component is not an in the interior of buildings subject to restrictions and thanks to the modular structure of the elements almost any Material combinations without the use of solvents or solvents components. For applications in outdoor areas exposed to weather conditions the use of appropriate surface coatings or materials is required.

The element meets high demands for sound insulation and thermal insulation. In the described Execution is the basis for the user or designer for a large variety of construction and Design options given, without handling during assembly and subsequent maintenance to complicate the user.

The described elements have the same structure and differ mainly in the type of their use as floor, wall or ceiling covering in the dimensions and the thickness of the individual layers.

Fig. 1 shows a longitudinal section through a wooden staircase ( Fig. 1, Fig . 8 ) on a support profile ( Fig. 1, Section 6 ) consisting of a profile tube, in which a simple version of the fastening mechanism is installed. The deformation body ( figure 1, point 1 ) is tightened by tightening the screw ( figure 1, point 4 ), between the pressure surface of the pressure piece ( figure 1, point 3 ), and the surface of the stair profile, ( figure 1, point 4) . 6 ), in the hole ( Fig. 1, Section 8.1 ), pressed together and lies against the wall of the hole. At the same time, the withdrawal protection. ( Fig. 1, point 2 ), pressed outwards in the direction of the tightening torque of the screw and claws in the bore wall. To further dampen vibrations, the hollow profile of the stair substructure ( Figure 1, Section 6 ) is filled with an absorbent material ( Figure 1, Section 7 ).

Fig. 2 shows a longitudinal section through a wooden staircase ( Fig. 2, Fig . 8 ) on a stair profile ( Fig. 2, Section 9 ) made of wood, into which a double-acting version of the fastening mechanism is installed. The deformation body ( Figure 2, Section 1.1.1 ) is pressed together by tightening the screw ( Figure 2, Section 4 ) between the pressure surface of the two pressure pieces in the holes ( Figure 2, Section 8.1 and 9.2 ) and lies against the walls of the holes. At the same time, the retraction protection devices ( Fig. 2, Section 2 ) are pressed outwards towards each other in the direction of the tightening torque of the screw and thereby cling to the hole wall.

Figure 3 shows a cross-section through a wooden stair tread on a support profile, the surface of which is coated with a covering ( Figure 3, point 11 ) made of an absorbent material, for example cork, into which one simple execution of the fastening mechanism, is installed. The deformation body ( figure 3, point 1 ) is by tightening the screw ( figure 3, point 4 ), between the pressure surface of the pressure piece ( figure 3, point 3 ), and the surface of the stair profile, in the hole, pressed together and lies against the wall of the hole. In order to achieve reproducible surface pressure values within the bore, the screw ( Figure 3, Item 4 ) is mounted with a washer ( Figure 3, Item 5 ), which is better fixed on the side facing the profile tube with radial corrugation is provided.

Figure 4 shows a longitudinal section through one, on a carrier profile (Figure 4, para. 6) of a profile tube be standing, mounted step (Figure 4, para. 10) made of wood whose surface with a coating (Figure 4, para. 11 ) is coated from an absorbent material, for example cork, in which a simple embodiment of the fastening mechanism is installed. In order to support overhangs or fastening points of the stair treads that are far apart, supports ( Fig. 4, Section 8.11 ) are inserted in corresponding holes. To further dampen vibrations, the profile of the stair substructure ( Figure 4, Item 6 ) is filled with an absorbent material ( Figure 4, Item 7 ).

The arrangements shown and described can be processed with manual means. You can NEN standard tolerances, due to the high deformability of the deformation body maintenance of a uniform surface pressure in the interior of the holes is easily compensated What is particularly important when assembling components made of mineral materials is.

Claims (4)

1. Vibration damping on stair constructions, in particular from profile tubes, characterized in that the support profile ( Figure 1, Section 6 ) with a stair substructure

• - a vibration-absorbing, preferably free-flowing, mass ( Figure 1, point 7 ) is filled,
• - Vibration-absorbing fasteners ( Fig. 1, 2, 3, 4) for assembly
  • - from components to support structures, for example,
  • - the steps ( Fig. 1, Clause 8 and Fig. 2, Clause 8 ) on the stair substructure, ( Fig. 1, Clause 6 and Fig. 2, Clause 9),
  • - the stair substructure at the fastening points in / on the building,
  • - The auxiliary stair construction (railings, harps, decorative elements) is installed.

2. Vibration damping according to claim 1, characterized in that the filling ( Figure 4, point 7 ), the stair substructure with the absorbent mass after the final assembly of the stairs, for example with sand, gravel, etc. takes place through closable openings in the support structure . 3. Vibration damping according to claim 1, characterized in that the attachment of the

• - elements to be attached to the stair substructure,
• - Stair substructure at the assembly points is carried out by means of vibration-absorbing fasteners.

4. Vibration damping according to claim 1, characterized in that the fastening of the elements is carried out by a fastening mechanism which includes a deformation body expanding in bores of the elements ( Figure 1, point 1), with vibration-damping properties.