Expanding rivet connection and assembly method

1. An expanding rivet connection ( 100 ) for connection of at least two components to be joined ( 21 , 22 ) comprising:

an expanding rivet ( 11 ) comprising

an expanding rivet body ( 110 ), which is shaped so that it can be inserted through openings into the first component to be joined ( 21 ), and

a threaded part ( 111 ), which is shaped so that it protrudes, at least in part, after insertion from the first component to be joined ( 21 ),

an expanding rivet mandrel ( 12 ), which is constructed so that it can be pushed through an opening ( 112 ) in the expanding rivet ( 11 ) into the expanding rivet body ( 110 ) in order to protrude through the first component to be joined ( 21 ), and

a clamping element ( 13 ), which is constructed to be screwed to the threaded part ( 111 ) of the expanding rivet ( 11 ) in order to connect at least the second component to be joined ( 22 ) to the first component to be joined ( 21 ) at a distance from each other; and

at least one stop ( 113 ) arranged at the expanding rivet ( 11 ) at least between the expanding rivet body ( 110 ) and the threaded part ( 111 ).

2. The expanding rivet connection ( 100 ) according to claim 1 for the connection of at least three components to be joined ( 21 , 22 , 23 ) wherein:

the expanding rivet body ( 110 ) is shaped in such a way that it can be inserted in addition through openings in a second component ( 22 ) arranged on the first component to be joined ( 21 ) and

the threaded part ( 111 ) is constructed in such a way that, after insertion, it protrudes at least in part from the first component to be joined ( 21 ) and the second component to be joined ( 22 ),

the expanding rivet mandrel ( 12 ) is constructed so that it can be pushed through the opening ( 112 ) in the expanding rivet ( 11 ) into the expanding rivet body ( 110 ) in order to join the first ( 21 ) and the second components to be joined ( 22 ) together and

the clamping element ( 13 ) is constructed to be screwed to the threaded part ( 111 ) of the expanding rivet ( 11 ) in order to connect at least a third component to be joined ( 23 ), which is arranged on the second component ( 22 ) already joined to the first component to be joined ( 21 ).

3. The expanding rivet connection according to claim 1 , wherein the clamping element ( 13 ) is constructed as a spring element in the form of a nut with a spring washer.

4. The expanding rivet connection according to claim 1 , wherein the expanding rivet body ( 110 ) is round or n-cornered and the threaded part ( 111 ) is n-cornered.

5. The expanding rivet connection according to claim 1 , wherein the stop ( 113 ) is constructed in such a way that the surface ( 1131 ) facing the threaded part ( 111 ) serves to protect the expanding rivet ( 11 ) against being pulled out when the clamping element ( 13 ) is screwed tight and where the thickness of the stop ( 113 ) determines the travel (W) of the pre-tension generated by screwing tight the clamping element ( 13 ).

6. The expanding rivet connection according to claim 1 , wherein at least one spacer ( 114 ) is arranged at the expanding rivet ( 11 ) between the expanding rivet body ( 110 ) and the threaded part ( 111 ).

7. The expanding rivet connection according to claim 6 , wherein the spacer ( 114 ) is connected to the expanding rivet ( 11 ) via at least one elastic element.

8. The expanding rivet connection according to claim 6 , wherein two spacers are ( 114 ) located opposite each other on the expanding rivet ( 11 ) between the expanding rivet body ( 110 ) and the threaded part ( 111 ).

9. The expanding rivet connection according to claim 6 , wherein the thickness of the spacer ( 114 ) corresponds to the distance between the two components to be joined ( 22 , 23 ).

10. The expanding rivet connection according to claim 6 , wherein each of the spacers ( 114 ) is shaped differently or identically as a cylinder, sphere, cone or double cone or being rectangular.

11. The expanding rivet connection according to claim 6 , wherein the spacer ( 114 ) encloses the circumference of the threaded part ( 111 ).

12. The expanding rivet connection according claim 1 , wherein the expanding rivet body ( 110 ) and/or the threaded part ( 111 ) and/or the expanding rivet mandrel ( 12 ) and/or the clamping element ( 13 ) are made from glass fiber-reinforced plastic.

13. A method for mounting the expanding rivet connection ( 100 ) of claim 1 comprising the steps of:

Step 1: Insertion of the expanding rivet body ( 110 ) of the expanding rivet ( 11 ) into openings in the first component to be joined ( 21 ) and the other or additional component(s) to be joined ( 22 ), if present,

Step 2: Insertion of the expanding rivet mandrel ( 12 ) into the opening ( 112 ) in the expanding rivet ( 11 ) so that a firm connection is made between the first component to be joined ( 21 ) and the other (or additional) component(s) to be joined ( 22 ), if present,

Step 3: Application of a third component to be joined ( 23 ) to be joined onto the first component to be joined ( 21 ) or any other component(s) to be joined ( 22 ) already joined to the first component to be joined ( 21 ) via the threaded part ( 111 ) of the expanding rivet ( 11 ),

Step 4: Attachment of at least one third component to be joined ( 23 ) to be joined by means of the clamping element ( 13 ) to the first component to be joined ( 21 ) or to the other or additional component(s) to be joined ( 22 ) already joined with the first component to be joined ( 21 ).

14. The method according to claim 13 with the process comprising, between steps 2 and step 3, a further step 2a: introduction of the first component to be joined ( 21 ) being provided with the expanding rivet ( 11 ), or of the joint first and further components to be joined ( 21 , 22 ) being provided with the expanding rivet ( 11 ) into a device for forming electrical connections between the components to be joined ( 21 , 22 ).