DE102010008668A1 - Connection system for modular connection of e.g. timber beam for forming support structure, during facade construction in timber building, has stop element lying against upper edge of connector in connected state - Google Patents

Abstract

The system (1) has connectors (2, 3) connected in detachable manner. One of the connectors (2) is designed as a rail (27), which is provided with a dovetail inner profile. Another connector (3) is designed as a plate (22) with a dovetail outer profile. The former connector is provided at an upper end section (12) with a stop element (9), which lies against an upper edge (26) of the latter connector in a connected state of the former and latter connectors and is designed as another plate (25). The former connector is provided with a spring element (17) i.e. springy steel metal plate. An independent claim is also included for a method for manufacturing a connection system.

Description

FIELD OF THE INVENTION

The invention relates to a connection system for modular connection of components of a wooden structure and a method for producing a connection system.

BACKGROUND OF THE INVENTION

In the prior art it is known to make the connections of wooden structures by means of connecting fittings.

For example, in DE 201 14 883 U1 such a connection fitting for mullion-transom timber structures described. The mullion and transom wooden structure has two substantially G-shaped profiles, one of which is rotated 180 ° axially inserted with play in the other. A guide channel, which is formed from two opposing grooves, receives a locking means which locks the fits on the lower profile inner sides of one profile with the countershapes of the profile outside of the other profile positively under prestress. As a locking means here are screws which are screwed on both end sides of the connection fitting between the opposing grooves. The described mullion and transom construction was developed for facade construction and is not suitable for the transfer of the loads that occur in a timber stand construction.

Also, an assembly would be costly, since the locking of the components to be joined together can only be done with the help of additional tools, which under certain circumstances also entails the use of additional workers or fitters. Also, the once interconnected components can not be easily solved again from each other, z. B. in the case of an extension or reduction of an already completed wooden post / transom construction.

In order to enable a modular construction of the wooden structure, for example, to make the wooden structure as needed expandable to other posts and beams, or to be able to remove unnecessary poles and beams in the reverse case, it is desirable to provide a connection fitting, the a detachable connection of the means of the connection fitting fixed to each other post and beam allows.

OBJECT OF THE INVENTION

Therefore, it is the object of the present invention to provide a connection system for modular joining of components of a wooden structure for a wooden house in general or prefabricated components and a method for producing such a connection system, wherein a structurally simple manner in all directions stable, but releasable Connection between the components of the wooden structure is made possible, which can be produced and solved in a simple manner without the aid of additional tools.

With the connection system all connections of the structure (sleepers, beams, struts, purlins and posts to support, secondary beams, to main beams, rafters, purlins and bars to sleepers, beams and posts) to be produced. The connection fittings must therefore withstand the occurring compressive and tensile forces.

INVENTION SOLUTION

This object is achieved by a connection system having the features according to claim 1 and by a method for producing a connection system having the features according to claim 11.

According to the invention, there is provided a connection system for modularly connecting structural elements of a wooden structure, which has a first connection element which can be attached to a supported component, and a second connection element which can be attached to a supporting component, wherein the first and the second connection element are detachably connectable to one another wherein the first connecting element is a rail provided with a dovetail inner profile, and the second connecting element is a first plate provided with a dovetail outer profile conforming to the dovetail internal profile, which is insertable into the rail, wherein the first connecting element is provided with a stop element at an upper end section is provided, which rests in the connected state of the first and second connecting elements on an upper edge of the second connecting element. The connection system according to the invention ensures a stable fixation of the two connecting elements in the connected state in all directions, which, however, can be released again in a simple manner if required. In this case, the dovetail inner profile of the first connecting element limits the dovetail outer profile of the second connecting element formed congruently therewith in the horizontal direction, ie in a direction pointing to the left and to the right, and that at the top End portion of the first connecting element attached stopper member limits further movement of the first connecting element in the vertical direction downward when the stop member rests on the upper edge of the second connecting element. An upper limit is in the construction according to the invention due to the dead weight of the components, such. B. when connecting a carrier to a support, not required, but with horizontally or diagonally arranged fasteners such. As the connection bar on posts, strut on support and beams or rafters on purlin. Since no additional tools for connecting and locking the components are required, the assembly of two components to be connected is greatly facilitated by the configuration of the invention and can be performed by only two technicians. Also, a release of the connection of the components without the aid of additional tools can be performed in a simple manner.

According to a preferred embodiment, the stop element is a second plate which can be fixed on a first surface of the first connecting element, in particular screwed. The design of the stop element as a plate is particularly advantageous in terms of manufacturing costs, since there are no complex shapes to manufacture and edit. It is also advantageous that the stop element is provided as a separate component to the connecting element, which is screwed to this. Thus, a multiplicity of first connecting elements can be uniformly produced, for example, from a compression extruded rail or a extruded profile, which can be produced in a single working step with regard to the manufacture of the dovetail inner profile.

According to a further preferred embodiment, the first connecting element has at least one first hole, in particular two first holes, via which the stop element can be screwed to the first surface of the first connecting element by means of fastening devices, such as screws.

Preferably, the first connecting element has at least one second hole, in particular four or more second holes, via which the connecting element can be screwed onto the supported component by means of fastening devices, such as screws. The length and number of holes for attaching the connector parts is variable, depending on the force to be transmitted depending on the load case. In this way, the first connection element can be fixed to a component to be connected, such as a wooden beam, in advance on this. This simplifies and accelerates the assembly of the components or the assembly of the wooden house from prefabricated components.

According to a preferred embodiment, the stop element may also be formed integrally with the first connecting element. Although the integral design of the stop element with the first connecting element prevents the above-described uniform production of a extruded profile with respect to the formation of the dovetail inner profile; However, this eliminates the additional fixing step, for example, the subsequent screwing of the stop element to the first connection element.

According to yet a preferred embodiment, the first connecting element is provided at a lower end portion with a spring element, wherein the spring element is a spring steel sheet, which is provided at a lower end with a protruding from the spring steel sheet approach. The projection projecting from the spring steel sheet can serve to engage in a corresponding recess on a lower edge of the second connecting element, which is to be brought into the state connected to the first connecting element.

Upon occurrence of suction forces, z. As on the facade or on the roof, it must be ensured that the connection not only to pressure, but also to train. For these cases in the lock with spring count plate required.

Preferably, the spring element is freely screwed to the first connecting element, which offers the advantages already described above with regard to the uniform production of a plurality of first connecting elements.

According to yet another preferred embodiment, the second connecting element has at least one first hole, in particular four or more first holes, via which the second connecting element can be screwed onto the supporting component. As already carried out in connection with the pre-assembly of the first connecting element carried out in the same way on the component to be supported, this considerably facilitates the assembly of the components to be connected.

It is particularly advantageous if the connecting elements are made of a high-strength material, such as steel, stainless steel or aluminum. This makes them especially for Wooden constructions such as those used in prefabricated building houses.

Preferably, the structural element is a wooden stand or stem of a wooden house construction and the supported structural element is a wooden beam of a wooden house construction. A variety of interconnected wooden stands or stalks and wooden beams form the framework for a wooden house made of prefabricated components, which is modular expandable or reducible. This allows a particularly high flexibility in the design of a wooden house in general or prefabricated components.

According to the invention, there is further provided a method for producing a joint system for joining a timber construction, the method comprising the steps of: producing a first extruded profile with a dovetail inner profile; Cutting the first extruded profile to length to produce a plurality of first fasteners; Producing a second extruded profile with a dovetail outer profile, which is congruent with the Schwalbenschanzinnenprofil; Cutting the second extruded profile to length to produce a plurality of second fasteners and stop members having first and second shorter predetermined lengths; and fixing, in particular screwing, each of a stopper member of the plurality of stopper members to an upper end portion of each of a first linkage member of the plurality of first linkage members. The process according to the invention is particularly effective, since only a few different parts have to be produced. In this case, the profiles which are used for producing the second connecting elements can be used at the same time for producing a plurality of stop elements. In addition, a plurality of first connecting elements, which have the subsequently attached stop elements, with respect to the provision of the dovetail inner profile uniformly produced in a single process step, which makes the inventive method particularly effective and inexpensive.

BRIEF DESCRIPTION OF THE FIGURE

Further details and features of the invention will become apparent from the following description taken in conjunction with the drawings. It shows:

1 an exploded view of a connection system according to an embodiment.

1 shows an exploded view of a connection system 1 according to one embodiment. The connection system 1 comprises a first connecting element 2 and a second connecting element 3 , which are designed for releasably connecting components of a modular wooden structure. The first connection element 2 has a base plate 4 with a first surface 5 and one of the first surface 5 opposite, not visible here second surface. Along the two long sides of the base plate 4 protrude from the first surface 5 margins 6 . 6 ' off, their insides 7 . 7 ' are chamfered in each case in the opposite direction to each other, so that the two opposite edges 6 . 6 ' together form a dovetail inner profile. The base plate 4 with the edges protruding from it 6 . 6 ' , which form the dovetail inner profile, thus forms a rail 27 into which the second connecting element 3 is insertable, as will be described below. In addition, in the base plate 4 two first holes 8th . 8th' at an upper end portion 12 of the first connecting element 2 or on the base plate 4 provided by which fastening means (not shown), such as screws, can be guided, to a stop element 9 which is also two corresponding to the first holes 8th . 8th' trained holes 10 . 10 ' has, on the first connecting element 2 to fix.

Furthermore, in the base plate 4 four (or more) second holes 11 . 11 ' . 11 '' . 11 ''' provided, through which further fastening means (not shown), such as screws, can be guided, to the first connecting element 2 on a structural element carried in a wooden structure, such as a wooden beam, before joining the first connecting element 2 with the second connecting element 3 to fix.

Finally, the base plate points 4 at a lower end portion 13 a recess 14 on. In the recess 14 is a jetty 15 arranged in which two third holes 16 . 16 ' are provided by which also not shown fastening means, such as screws, can be guided, to a spring element 17 which corresponds to the third holes 16 . 16 ' trained holes 18 . 18 ' has, on the first connecting element 2 to fix. The spring element 17 is a spring steel sheet, which is at a lower end 19 with a protruding from the spring steel sheet approach 20 is trained. When the first connecting element 2 and the second connecting element 3 are in an interconnected state, then lies the approach 20 at a recess at a lower end 21 of the second connecting element 3 on or engages or snaps into this recess.

The second connection element 3 is the first record 22 formed, which four first (or more) holes 23 . 23 ' . 23 '' . 23 ''' has, through which fastening means, not shown here, such as screws, can be guided, to the second connecting element 3 before connecting to the first connecting element 2 on a load-bearing component, such as a wooden stand or handle of the wooden structure of a wooden house made of prefabricated components to fix this. The second connection element 3 is also on its opposite edges 24 . 24 ' along the long sides of the first plate 22 provided with edges chamfered in the opposite direction, so that on the longitudinal sides of the first plate 22 or the second connecting element 3 a dovetail outer profile or burr rail is formed. The dovetail outer profile is conformal to the dovetail inner profile of the first connector 3 educated. In addition, form the dovetail outer profile of the second connecting element 3 and the dovetail inner profile of the first connecting element 2 in an interconnected state a positive connection, and see a lateral boundary in a horizontal, left and right direction of the then in the first connecting element 2 received second connecting element 3 in front.

The stop element 9 is as a second plate 25 formed having the same width B as the first plate 22 of the second connecting element 3 , However, the length L 'of the second plate 25 opposite the length L of the first plate 22 significantly shortened.

The first connection element 2 and the second connecting element 3 as well as the stop element 9 and the screws not shown here are made of a high strength material, here aluminum. Alternatively, a steel, such as stainless steel for these parts can be used.

The connection system 1 is particularly easy and inexpensive to manufacture. For the production of the first connecting element 2 an aluminum extruded profile is used. The press bar profile already has the final shape. Thereafter, a cutting of the aluminum extruded profile is carried out, so that a plurality of blanks for first connecting elements 2 each having a predetermined length is obtained. The blanks are further processed to the first holes 8th . 8th' and the second holes 11 . 11 ' . 11 '' . 11 ''' as well as the recess 14 in the base plate 4 manufacture. Then the jetty 15 over the recess 14 made by milling and grinding in strength of the spring steel sheet, to which the spring element 17 is screwed on. Alternatively, the spring element 17 also in a different way at the footbridge 15 be fixed, such as by riveting. In addition, on each blank for a first connecting element 2 the stop 9 attached or to the base plate 4 screwed. Here, too, alternative connection possibilities, for example riveting, can be implemented. From a further aluminum extruded profile is by appropriate cutting a variety of blanks for second fasteners 3 educated. The press bar profile already has the final shape of the Schwalbenschanzprofils (or the burr rail), which is congruent with the dovetail inner profile of the first connecting element 2 is trained. In addition, the first holes 23 . 23 ' . 23 '' . 23 ''' (or more) in the first plates 22 the blanks of the second connecting element 3 - For example, by drilling - formed.

After completion of the connection system 1 Then, for pre-assembly, the first connection element 2 screwed to a supported component and the second connecting element 3 is screwed to a load-bearing component. When assembling a wooden stand construction, the first connection element becomes 2 then into the second connection element 3 inserted or pushed until the stop element 9 to the upper edge 26 of the second connecting element 3 strikes or rests on, thereby limiting a further downward movement of the first connecting element 2 is achieved. The spring element 17 when merging the first connector 2 and the second connecting element 3 pressed slightly backwards until its final relative positioning by abutment of the stop element 9 on the upper edge 26 of the second connecting element 3 , as described above, is reached. Upon reaching the final relative positioning of the two fasteners 2 . 3 the spring element moves 17 back to the front and snaps with the approach 20 in a corresponding recess at the lower end 21 of the second connecting element 3 one. Due to the weight of the interconnected components is an upward movement of the first connecting element 2 and thus prevents loosening of the connection. If necessary, however, a release of the connection in a simple manner by upward pressing or lifting of the carried component with the first connecting element attached thereto 2 ,

The first connection element 2 and the second connecting element 3 can thus be easily connected to each other without the aid of a tool and be released from each other again, so that the assembly of a Wooden stand construction is greatly simplified. In addition, the wooden stand construction is modular expandable and reducible.

LIST OF REFERENCE NUMBERS

1

connection system

2

first connecting element

3

second connecting element

4

baseplate

5

first surface of the first connecting element

6, 6 '

Edges of the first connecting element

7, 7 '

Insides of the edges

8, 8 '

first holes in the base plate of the first connecting element

9

stop element

10, 10 '

Holes in the stop element

11, 11 ', 11' ', 11' ''

second holes in the base plate of the first connecting element

12

upper end portion of the first connecting element

13

lower end portion of the first connecting element

14

recess

15

web

16, 16 '

third holes

17

spring element

18, 18 '

Holes in the spring element

19

lower end of the spring element

20

approach

21

lower end of the second connecting element

22

first plate

23, 23 ', 23' ', 23' ''

first holes in the first plate of the second connecting element

24, 24 '

Edges of the second connecting element

25

second plate

26

upper edge

27

rail

B

width

L, L '

length

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 20114883 U1 [0003]

Claims (11)

Connection system ( 1 ) for modular connection of components of a wooden structure, which comprises a first connecting element ( 2 ), which is attachable to a supported component, and a second connecting element ( 3 ), which is attachable to a supporting component, wherein the first connecting element ( 2 ) and the second connecting element ( 3 ) are releasably connectable to each other, wherein the first connecting element ( 2 ) a rail provided with a dovetail inner profile ( 27 ), and the second connecting element ( 3 ) a first plate provided with a dovetail outer profile conforming to the dovetail inner profile ( 22 ) which is in the rail ( 27 ) is positively insertable, wherein the first connecting element ( 2 ) at an upper end portion ( 12 ) with a stop element ( 9 ), which in the connected state of the first and second connecting elements ( 2 . 3 ) on an upper edge ( 26 ) of the second connecting element ( 3 ) rests. Connection system ( 1 ) according to claim 1, wherein the stop element ( 9 ) a second plate ( 25 ), which are at a first surface ( 5 ) of the first connecting element ( 2 ) can be fixed, in particular screwed, is. Connection system ( 1 ) according to claim 1 or 2, wherein the first connecting element ( 2 ) at least a first hole ( 8th . 8th' ), in particular two first holes ( 8th . 8th' ), over which the abutment element (s) ( 9 ) on the first surface ( 5 ) of the first connecting element ( 2 ) can be screwed. Connection system ( 1 ) according to one of claims 1 to 3, wherein the first connecting element ( 2 ) at least a second hole ( 11 . 11 ' . 11 '' . 11 ''' ), in particular four or more second holes ( 11 . 11 ' . 11 '' . 11 ''' ), via which the first connecting element ( 2 ) can be screwed to the supported component. Connection system ( 1 ) according to claim 1, wherein the stop element ( 9 ) integral with the first connecting element ( 2 ) is trained. Connection system ( 1 ) according to one of claims 1 to 5, wherein the first connecting element ( 2 ) at a lower end portion ( 13 ) with a spring element ( 17 ), wherein the spring element ( 17 ) is a spring steel sheet, which at a lower end ( 19 ) with a projecting from the spring steel sheet approach ( 20 ) is provided. Connection system according to claim 6, wherein the spring element ( 17 ) to the first connecting element ( 2 ) is freely screwed. Connection system ( 1 ) according to one of claims 1 to 7, wherein the second connecting element ( 3 ) at least a first hole ( 23 . 23 ' . 23 '' . 23 ''' ), in particular four or more first holes ( 23 . 23 ' . 23 '' . 23 ''' ), via which the second connecting element ( 3 ) can be screwed to the supporting component. Connection system ( 1 ) according to one of claims 1 to 8, wherein the first connecting element ( 2 ) and / or the second connecting element ( 3 ) are made of metal, in particular aluminum or steel, are / is. Connection system ( 1 ) according to one of claims 1 to 9, wherein the supporting member can be vertically or horizontally and the supported component can be directed vertically or horizontally. Method for producing a connection system ( 1 ) for joining a timber structure according to one of claims 1 to 10, the method comprising the following steps: - producing a first extruded profile with a dovetail inner profile; Cutting the first pressed strand to a plurality of first connecting elements ( 2 ) to produce; - Producing a second extruded profile with a dovetail outer profile, which is congruent with the Schwalbenschanzinnenprofil; Cutting the second extrudate profile to a plurality of second connecting elements ( 3 ) and connecting elements ( 9 ) having first and second shorter predetermined lengths (L); - Fixing, in particular screwing, each of a stop element ( 9 ) of the plurality of stop elements ( 9 ) at an upper end portion ( 12 ) each of a first connecting element ( 2 ) of the plurality of first connecting elements ( 2 ).

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