CZ35553U1 - Coupling of structural profiles - Google Patents

Description

Coupling of structural profiles

Field of technology

The technical solution relates to a coupling of structural profiles especially for dry construction of buildings and sanitary facilities, which comprises a pair of parallel arranged faceplates, each of which is provided with at least two curved edges for attachment to structural profiles, the coupling further comprising a clamping element which transversely connects plate and a spring member is arranged between the face plates.

State of the art

Load-bearing frames of building systems for dry wall construction of buildings with prefabricated installation equipment, eg flushing modules, washbasin modules, etc. usually consist of elongated structural profiles, eg pipes, rails, U-profiles, C-profiles, etc., and various types of connectors for connecting these elongate components and for connecting the installation devices to the supporting frame.

From the German utility model DE 202004017856 a sheet metal coupling is known with two parallel face plates at the edges firmly transversely connected by a sheet metal base, which allows a flexible movement of the face plates. The most commonly used sheet metal connector for right-angled structural joints according to DE 202004017856 comprises a pair of parallel flat face plates in the form of right-angled isosceles triangles, which are provided with retaining tongues / holders at the edges, on the triangular hinges. The coupling is further provided with a tightening screw through the hole in the first face plate and screwed into the thread in the hole in the second face plate for tightening the coupling faces and thus for fixing the retaining tongues in the grooves of the connected components.

Furthermore, a coupling is known from practice whose face plates are connected at the edges, instead of a fixed connection by a transverse sheet metal base as in DE 202004017856, by interlocking hinges which are formed on two opposite edges of the metal face plates. Such a connection of the face plates allows their mutual pivoting movement in a circle, the coupling being provided with a compression metal coil spring which is threaded on the clamping screw and springs the pivoting connected face plates.

A disadvantage of known joint plates with resiliently and / or pivotally connected base and / or hinge edges is that when tightening the coupling, the face plates with the grips move in a circle but are tightened to straight longitudinal grooves or straight longitudinal edges of the structural profiles. Thus, when tightened firmly, the coupling and / or the profile is permanently deformed, so that tightening requires a considerable tightening force acting on the tightening element and at the same time does not allow the coupling face plates to be made of strong, strong, inflexible steel sheet. In addition, when the coupling and / or the structural profile are deformed during tightening, the joined parts may shift due to the deformation. It is also usually not possible to reuse such a coupling and / or structural profile once it has been tightened, deformed if the structure has to be rebuilt.

Another disadvantage of such known connectors is that in the compact design of a triangular-shaped face plate connector, the connector can only be used to connect two structural profiles at one defined angle, usually at a right angle, but cannot be used for another profile connection angle and / or or for connecting three structural profiles. Although DE 202004017856 describes other shape variants of the coupling, which make it possible to connect two structural profiles not only at a right angle, but also at another angle, or to connect three structural profiles, the faces of such

- 1 CZ 35553 UI couplings have the shape of a quadrilateral or hexagon, which, while maintaining the required strength of the joint, necessarily increases the size of the coupling compared to the triangular coupler.

The aim of the technical solution of the structural profile coupling is to eliminate or at least minimize the above-mentioned disadvantages of the prior art.

The essence of the technical solution

The object of the technical solution is achieved by a structural profile connector especially for dry construction of building walls and sanitary equipment, which, like known connectors, comprises a pair of parallel arranged face plates, each of which is provided with at least two curved edges for attachment to structural profiles. The coupling further comprises a clamping element which transversely connects the face plates. A spring member is arranged between the face plates, which, unlike known connectors, comprises a pair of base plate connection bases which abut at least a part of the inner surface of the face plates and which are connected by at least one spring elastic element, e.g. coil spring, flat plastic elastic arm, rubber roller, etc., which facilitates the handling of the coupling during the assembly of structural profiles. Another advantage of such a connector is that it does not have to be provided with a connecting base at its edge, so that this free edge can be used to form a grip and the connector can be used to connect multiple profiles at several different connection angles than other similarly shaped connectors known in the art.

In a preferred embodiment of the coupling described above, the spring elastic element is formed by a compression spring or a longitudinal elastic arm which is bent in the assembled state. The compression spring movably resiliently connects the opposing bases of the suspension member, so that it compresses as they approach and stretches as they move away. The longitudinal elastic arm movably resiliently connects the opposing bases of the suspension member so that it bends as they approach and straightens as they move away.

In another preferred embodiment of the coupling described above, the suspension member comprises at least one spacer element, ideally arranged between the bases, for defining the distance between the bases and preventing deformation of the suspension elastic member between them when handling the coupling.

In another preferred embodiment of the coupling described above, the pair of bases of the spring member is formed by a pair of substantially parallel planks adapted in shape and size to fit on the inner surfaces of the faceplates, thereby facilitating the manufacture of the coupling described above.

In a preferred embodiment of the coupling member with a pair of bases formed by a pair of substantially parallel flat plates, each base comprises an opening for the passage of a transverse clamping element, ideally arranged in the center or substantially in the center of the base, the two bases being joined together by a pair of spring elastic elements. which are arranged on the sides of the openings for the clamping element, whereby a laterally balanced suspension of the face faces of the coupling is achieved.

In this case, it is advantageous if a main spacer is arranged between the spring elastic elements, ideally next to the opening for the clamping element, which prevents the face plates from coming too close when tightening the coupling, which could squeeze and damage the spring elastic elements.

In this case, it is furthermore advantageous if at least one of the bases is provided on its circumference with regularly arranged auxiliary spacers. Auxiliary spacers serve to limit the distance of the opposite edges of the bases of the resilient member, and thus also to limit the distance of the opposite curved edges of the face faces, thereby increasing the comfort of using the coupling when joining structural profiles. Auxiliary spacers arranged on one base are ideally designed to be 5% to 50% lower than the main spacer arranged on the same

-2 CZ 35553 UI base, thus allowing the base to be pivotally moved, and thus also the edges of the face faces, around the main spacer.

The at least one coupling face plate in any of the above-described embodiments of a coupling member with a spring member with a pair of bases connected by a longitudinal spring elastic element is preferably provided with means for fitting and / or holding the base of the spring member on the inside of the face plate, e.g. of the spring member, protrusions for insertion into the holes in the spring member, holders for catching the edge of the base of the spring member, etc.

Each of the face plates of the coupling in any of the embodiments described above is preferably formed from a single piece of sheet metal, e.g., by cutting, pressing, bending, etc., and the spring member is formed from a single piece of plastic by plastic injection molding. Sheet metal face plates provide sufficient joint strength and are economically manufacturable by cutting and / or pressing the sheet metal. The plastic spring member can be economically produced by injecting plastic into a mold as a corrosion-resistant one, which, if another material is used, could reduce the functionality of the resilient elastic element in particular. When assembling such a connector, the sheet metal face plates are joined together simply by sliding and / or snapping onto the bases of the plastic spring member and there is no need to connect them at the edges with a metal base.

In a preferred embodiment, the face plates are basically triangular in shape, each of the face plates being provided with three curved edges for attachment to the structural profiles, thereby increasing the variability of the widely used triangular base connector, which can be used unlike known triangular connectors. for connecting three structural profiles with one triangular connector.

Clarification of drawings

The technical solution is schematically shown in the drawings, where FIG. 1 is a perspective view of a first embodiment of a structural profile coupling according to the present technical solution, FIG. 2 is an exploded view of the coupling in the second embodiment, FIG. 3 is a perspective view of a clutch suspension member in a second embodiment, FIG. 4 three structural profiles connected by a coupling.

Examples of technical solutions

The coupling of structural profiles 4, e.g. profiled pipes, rails, U profiles, C profiles, etc., according to the presented technical solution comprises a pair of parallel arranged face plates 1a, 1b. each of which is provided with at least two curved edges 11 to form a holder for attaching the coupling to the structural profiles 4, to their longitudinal attachment elements 41 (Fig. 4), the coupling face plates 1a, 1b in the assembled state (Fig. 1) define the inner space 5 of the coupling. Furthermore, the coupling is provided with a transversely arranged clamping element 3, for example a screw, a clamping eccentric, etc. for the transverse connection of the face plates 1a. 1b and for firmly clamping the coupling to the connected longitudinal components 4. In the inner space 5 of the coupling, at least one spring member 2 is arranged between the face plates 1a, 1b for the swinging spring and the line-sliding connection of the face plates 1a, 1b. The spring member 2 comprises a pair of bases 21a. 21b which abut at least a part of the inner surface of the face plates 1a, 1b and are connected by at least one spring elastic element 24, whereby, unlike couplings known from the prior art, the coupling is adapted for easy assembly, 1a, 1b resiliently rotate relative to each other at all their edges 11 and at the same time resiliently approach / retract in a straight line in the direction S of clamping / releasing the coupling by the clamping element 3.

In the first embodiment schematically shown in FIG. 1, the coupling is provided with three spring members 2 arranged in the inner space 5 of the coupling around the clamping element 3. Each spring member

The member 2 comprises two bases 21a, 21b, each of the bases abutting a part of the inner surface of one of the face plates 1a, 1b. The two opposite bases 21a, 21b of one spring member 2 are in each case connected by one spring elastic element 24, which is a transversely arranged coil compression spring, but in another variant another spring elastic element 24 can be used, e.g. ball, etc.

In the first embodiment of the coupling, the face plates 1a, 1b are provided with spacers 6 (Fig. 1) to limit the shortest distance of the face faces 1a, 1b of the assembled coupling and to prevent damage to the spring member 2 by the face faces 1a, 1b approaching each other by tightening the clamping element 3.

In the second embodiment schematically shown in FIG. 2, the coupling is provided with only one spring member 2, which comprises two bases 21a, 21b abutting substantially the entire inner surface of the face plates 1a, kb and connected by two spring elastic elements 24 designed as longitudinal arms.

In yet another embodiment, not shown, the coupling can be provided with two, four or another suitable number of spring members 2, depending on the size and shape of the coupling, which are arranged in the inner space 5 of the coupling, ideally symmetrically around the clamping element 3.

Furthermore, the suspension spring member 2 in the second embodiment (Fig. 2) is provided with at least one spacer element 6 to limit the shortest distance of the face faces 1a, 1b of the assembled clutch and to prevent damage to the spring member 2 by face faces 1a, 1b approaching each other by tightening the clamping element 3. The clutch spacer 6 in this second exemplary embodiment is, in contrast to the first clutch embodiment, part of the spring member 2 and is arranged between its bases 21a, 21b.

Pair of bases 21a. 21b of the spring member 2 is in a second embodiment (Figs. 2, 3) a pair of parallel or substantially parallel flat plates which are adapted in shape and dimensions to the inner space 5 of the coupling, the first base 21a being adapted in shape and size to accommodate the first. the face plate 1a and the second base 21b are adapted in shape and size to be accommodated in the second face plate kb.

The base 21 of the spring member (Figs. 2, 3) is provided with protrusions 25 for insertion into the holes 13 in the face plate 1a. 1b.

Further, each base 21a. 21b comprises an opening 22 for the passage of a clamping element 3, which in this second embodiment of the coupling is a screw. On the sides of the opposite openings 22 (Figs. 2, 3), a pair of spring elastic elements 24, longitudinal arms, which transversely connect the bases 21a, 21b and which are bent inwards of the coupling in the assembled state, are arranged, ideally symmetrically.

In a second exemplary embodiment of the coupling, a main spacer element 61 is arranged between the spring elastic elements 24 (FIG. 3), on the inner, center-oriented side of the coupling 21, in order to limit the mutual distance of the face plates 1a. 1b. The main spacer 61 is arranged next to the opening 22 for the clamping element 3, ideally so that it abuts and / or surrounds it.

At its edges, the at least one base 21 of the suspension member 2 (Fig. 3) is optionally provided with auxiliary spacers 62, ideally regularly arranged on the periphery of the base 21 of the suspension member 2, to limit the mutual distance of the edges of the faceplates 1a, 1b. from each other around the main spacer 61 and when they are rotated relative to each other about the axis of the transverse clamping element 3, during clamping of the coupling to the structural profiles 4. The auxiliary spacers 62 are 5% to 60%, preferably 10% to 30% lower than the same. the main spacer 6L arranged at the base 21

-4CZ 35553 UI

The spring member 2 is preferably made as one plastic component by injecting plastic into a mold, ideally from one piece of polyamide Pa6, or from one piece of polyoxymethylene (POM), polypropylene (PP), acrylonitrile butadiene styrene (ABS), etc.

In other embodiments, the spring member 2 may be made of another suitable resilient material and may be composed of several pieces, e.g. two bases 21 and separately made resilient elastic elements 24 and spacers 6.

The face plate 1 (Figs. 1, 2) with curved edges 11 is preferably made by pressing a single piece of metal, e.g. steel, aluminum, duralumin, etc., sheet metal, wherein an opening is formed in the center or substantially in the center of the face plate 1. 12 for the clamping element 3, which can be provided with an internal thread 121. Around the opening 12 for the clamping element, further openings 13 are preferably formed in the face plate 1 for fitting the base 21 of the spring member 1.

In another non-illustrated embodiment, the face plate 1 may comprise other suitable means for fitting and / or holding the base 21 of the spring member 2, e.g. one, three or substantially any number of holes, protrusions, depressions, holders, retaining tongues and the like.

In both of the exemplary embodiments described above (FIGS. 1,2,4), the coupling has a triangular shape in the base, each of a pair of face plates 1a arranged in parallel. 1b has a triangular shape at the base and is provided with three curved edges 11 to form a holder for attachment to the structural profiles 4. In a preferred second embodiment, the spring member 2 of such a coupling has a triangular shape (Fig. 3) an opening 22 for the clamping element 3 and a main spacer element 61 is arranged, on the sides of which a pair of spring elastic elements 24 are arranged.

Each of the face plates 1a, 1b in the base of the triangular shape is provided with three curved edges 11 to form a grip, the curved edges 11 of one face plate 1 forming three acute angles together in the face plate 1 if the coupling is in the shape of a right triangle sharp angles and one right angle. A connector provided with such face plates can be used, in contrast to triangular connectors known from the prior art, for connecting two structural profiles 4 at right and acute angles and / or for connecting three structural profiles 4 (Fig. 4).

In other embodiments not shown, the coupling can be in the shape of any polygon at the base and be provided with face plates 1a, 1b in the shape of the base of such a polygon, in order to achieve the desired combinations of joining angles of the structural profiles 4.

When assembling the coupling according to the present technical solution, the procedure is that the spring member 2 is placed between the face plates 1a. 1b into the inner space 5 of the coupling and settles in the respective face plates 1a, kb. Then the clamping element 3 is passed through the openings 12, 22 for the clamping means 3 and fastened to the coupling, e.g. .

When joining the structural profiles 4, the assembled coupling is placed by the curved edges 11 in the longitudinal holding elements 41 and clamped loosely to the profiles by the clamping element 3. Then the structural elements 4 are adjusted to the desired positions and the face plates 1a, 1b are they move in a straight line and are firmly clamped by the clamping element 3 in the direction S of clamping / loosening of the face plates 1a, 1b, whereby the connected structural profiles 4 are firmly fastened to each other by a coupling.

In the exemplary embodiments of the coupling shown in FIG. 1, 2 and 4, the bent edges 11 of the coupling are oriented inwards of the coupling in the assembled state, so that the opposite edges 11 are inclined towards each other and the coupling is adapted so that when clamping the coupling with the clamping element 3, the face plates 1a, 1b approach in the S direction of the clutch clamp. When joining the structural profiles 4, such a coupling is first placed on the structural profile 4 in such a way that they are longitudinal

The fastening elements 41 of the structural profile 4 arrange between the opposite curved edges 11 of the face plates 1a, 1b of the coupling (Fig. 4), then the coupling is clamped by the clamping element 3 and the face plate 1a. 1b approach each other in a straight line towards each other and against the longitudinal fastening elements 41 on the structural profile 4.

In another embodiment (not shown) of the coupling, the curved edges 11 of the coupling in the assembled state are oriented outwards from the coupling, so that the opposite edges 11 are inclined away from each other and the coupling is adapted so that when clamping the coupling 3, the face plates 1a, 1b move away in the S direction of the clutch clamp. When joining the structural profiles 4, such a coupling is first inserted into the structural profile 4 so that the opposite curved edges 11 of the coupling face plates 1a, 1b are arranged between the longitudinal fastening elements 41 of the structural profile 4, then the coupling is clamped by the clamping element 3 and the face plate 1a. , 1b are spaced apart from each other, against the longitudinal fastening elements 41 in the structural profile 4.

Claims (10)

PROTECTION REQUIREMENTS A structural profile connector (4), in particular for the dry construction of building walls and sanitary installations, comprising a pair of face plates (1a, 1b) arranged in parallel, each of which is provided with at least two curved edges (11) for attachment to the structural profiles (4). ), the coupling further comprising a clamping element (3) which transversely connects the face plates (1a, 1b) and a spring member (2) is arranged between the face plates (1a, 1b), characterized in that the spring member (2) comprises a pair of bases (21a, 21b) which abut at least a part of the inner surface of the face plates (1a, 1b) and which are connected by at least one spring elastic element (24). Coupling according to Claim 1, characterized in that the spring elastic element (24) is formed by a longitudinal arm which is bent in the assembled state of the coupling or the spring elastic element (24) is formed by a compression spring. Coupling according to Claim 1 or 2, characterized in that the spring member (2) comprises at least one spacer element (6). Coupling according to any one of the preceding claims 1 to 3, characterized in that the pair of bases (21a, 21b) of the suspension member (2) is formed by a pair of substantially parallel flat plates. Coupling according to claim 4, characterized in that each base (21a, 21b) comprises an opening (22) for the passage of a clamping element (3), the two bases (21a, 21b) being connected together by a pair of spring elastic elements (24). which are arranged on the sides of the openings (22) for the clamping element (3). Coupling according to Claim 5, characterized in that a main spacer element (61) is arranged between the spring elastic elements (24) next to the opening (22) for the clamping element (3). Coupling according to Claim 6, characterized in that at least one of the bases (21a, 21b) is provided on its circumference with regularly arranged auxiliary spacers (62). Coupling according to any one of the preceding claims 1 to 7, characterized in that at least one of the pair of face plates (1a, 1b) is provided with means for fitting and / or holding the base (21) of the spring member (2). Coupling according to any one of the preceding claims 1 to 8, characterized in that each of the face plates (1a, 1b) is formed from a single piece of sheet metal and the spring member (2) is formed from a single piece of plastic. Coupling according to any one of the preceding claims 1 to 9, characterized in that the face plates (1a, 1b) have a triangular shape in the base, each of the face plates (1a, 1b) being provided with three curved edges (11) for attachment to structural profiles (4).