Connecting assembly for fastening an add-on element on a carrier element

Abstract

A connecting assembly ( 1 ) for fastening an add-on element ( 2 ) on a carrier element ( 3 ) includes a foot ( 4 ) which can be inserted into an opening ( 39 ) of the carrier element ( 3 ) and has fixing means ( 40 ) for fixing the foot ( 4 ) with respect to the carrier element ( 3 ) in a direction parallel to the longitudinal axis ( 41 ) of the foot ( 4 ). The connecting assembly ( 1 ) further includes a pin ( 5 ) which can be inserted into a passage ( 20 ) of the add-on element ( 2 ) and has retaining means ( 50 ) which counteract a displacement of the add-on element ( 2 ) in a direction parallel to the longitudinal axis ( 51 ) of the pin ( 5 ). The pin ( 5 ) is adapted to be inserted into the foot ( 4 ) and has locking means ( 52 ) which cooperate with complementary locking means ( 42 ) of the foot ( 4 ) in a radial direction with -respect to the longitudinal axes ( 41, 51 ). The foot ( 4 ) has two elastic axial restoring means ( 43 ) with respect to its longitudinal axis ( 41 ) which hold a support surface ( 54 ) of the pin ( 5 ) and a counter support surface ( 44 ) of the foot ( 4 ) in contact with each other when the locking means ( 52 ) of the pin ( 5 ) cooperate with the complementary locking means ( 42 ) of the foot ( 4 ) after the insertion of the pin ( 5 ) into the foot ( 4 ).

1 . A connecting assembly ( 1 ) for fastening an add-on element ( 2 ) on a carrier element ( 3 ), comprising
 a foot ( 4 ) which can be inserted into an opening ( 39 ) of the carrier element ( 3 ) and includes fixing means ( 40 ) for fixing the foot ( 4 ) with respect to the carrier element ( 3 ) in a direction parallel to the longitudinal axis ( 41 ) of the foot ( 4 ), and   a pin ( 5 ) which can be inserted into a passage ( 20 ) of the add-on element ( 2 ) and includes retaining means ( 50 ) which counteract a displacement of the add-on element ( 2 ) in a direction parallel to the longitudinal axis ( 51 ) of the pin ( 5 ),   the pin ( 5 ) being adapted to be inserted into the foot ( 4 ) and including locking means ( 52 ) which cooperate with complementary locking means ( 42 ) of the foot ( 4 ) in a radial direction with respect to the longitudinal axes ( 41 ,  51 ),   the foot ( 4 ) having two elastic axial restoring means ( 43 ) with respect to its longitudinal axis ( 41 ) which hold a support surface ( 54 ) of the pin ( 5 ) and a counter support surface ( 44 ) of the foot ( 4 ) in contact with each other when the locking means ( 52 ) of the pin ( 5 ) cooperate with the complementary locking means ( 42 ) of the foot ( 4 ) after the insertion of the pin ( 5 ) into the foot ( 4 ).   
   
   
       2 . The connecting assembly ( 1 ) according to  claim 1 , wherein the locking means ( 52 ) are configured so as to surround the longitudinal axis ( 51 ) of the pin ( 5 ). 
   
   
       3 . The connecting assembly ( 1 ) according to  claim 1 , wherein the complementary locking means ( 42 ) are configured so as to surround the longitudinal axis ( 41 ) of the foot ( 4 ). 
   
   
       4 . The connecting assembly ( 1 ) according to  claim 1 , wherein the locking means ( 52 ) of the pin ( 5 ) cooperate with the complementary locking means ( 42 ) of the foot ( 4 ) under the action of radial elastic restoring means ( 6 ) in the radial direction. 
   
   
       5 . The connecting assembly ( 1 ) according to  claim 4 , wherein the radial elastic restoring means ( 6 ) are integrated into the foot ( 4 ) and formed by at least one elastic tongue ( 45 ). 
   
   
       6 . The connecting assembly ( 1 ) according to  claim 5 , wherein the elastic tongue ( 45 ) forms the complementary locking means ( 42 ). 
   
   
       7 . The connecting assembly ( 1 ) according to  claim 5 , wherein the elastic tongue ( 45 ) is movable in a radial direction with respect to the longitudinal axis ( 41 ) of the foot ( 4 ) and has a circumferential surface which forms the counter support surface ( 44 ). 
   
   
       8 . The connecting assembly according to  claim 1 , wherein the complementary locking means ( 42 ) have at least one finger ( 47 ) or one undercut ( 48 ). 
   
   
       9 . The connecting assembly ( 1 ) according to  claim 4 , wherein the radial elastic restoring means ( 6 ) are integrated into the pin ( 5 ) and formed by at least one elastic tongue ( 55 ). 
   
   
       10 . The connecting assembly ( 1 ) according to  claim 9 , wherein the elastic tongue ( 55 ) forms the locking means ( 52 ). 
   
   
       11 . The connecting assembly ( 1 ) according to  claim 9 , wherein the elastic tongue ( 55 ) is movable in a radial direction with respect to the longitudinal axis ( 51 ) and has a circumferential surface which forms the support surface ( 54 ). 
   
   
       12 . The connecting assembly ( 1 ) according to  claim 1 , wherein the locking means ( 52 ) have at least one undercut ( 47 ) or one finger ( 58 ). 
   
   
       13 . The connecting assembly ( 1 ) according to  claim 5 , wherein the pin ( 5 ) has a shank ( 53 ) surrounding its longitudinal axis ( 51 ) and having insertion means ( 59 ) which counteract the radial restoring means ( 6 ) to permit an insertion of the insertion means ( 59 ) into a cavity ( 49 ) formed in the foot ( 4 ). 
   
   
       14 . The connecting assembly ( 1 ) according to  claim 13 , wherein between the insertion means ( 59 ) and the arresting means ( 50 ), the shank ( 53 ) has an undercut ( 47 ) having the support surface ( 54 ), the support surface ( 54 ) forming at least part of the locking means ( 52 ). 
   
   
       15 . The connecting assembly ( 1 ) according to  claim 5 , wherein the foot ( 4 ) has a shank ( 490 ) surrounding its longitudinal axis ( 41 ) and having insertion means ( 491 ) which counteract the radial restoring means ( 6 ) to permit an insertion of the insertion means ( 491 ) into a cavity ( 590 ) formed in the pin ( 5 ). 
   
   
       16 . The connecting assembly ( 1 ) according to  claim 15 , wherein the shank ( 490 ) has an undercut ( 48 ) having the counter support surface ( 45 ), the counter support surface ( 45 ) forming at least part of the complementary locking means ( 42 ). 
   
   
       17 . The connecting assembly ( 1 ) according to  claim 1 , wherein the fixing means ( 40 ) of the foot ( 4 ) are formed from arresting means ( 401 ) und first elastic axial restoring means ( 402 ). 
   
   
       18 . The connecting assembly ( 1 ) according to  claim 17 , wherein the arresting means ( 401 ) comprise barbs ( 404 ) which ensure an elastic support at the opening ( 30 ) of the carrier element ( 3 ). 
   
   
       19 . The connecting assembly ( 1 ) according to  claim 18 , wherein the barbs ( 404 ) are arranged in several rows ( 405 ,  406 ) which are spaced apart in a direction parallel to the longitudinal axis ( 41 ) of the foot ( 4 ). 
   
   
       20 . The connecting assembly ( 1 ) according to  claim 1 , wherein the pin ( 5 ) has third elastic axial restoring means ( 510 ) with respect to a direction parallel to its longitudinal axis ( 51 ). 
   
   
       21 . The connecting assembly ( 1 ) according to  claim 1 , wherein the pin ( 5 ) has guiding means ( 56 ) surrounding its longitudinal axis ( 51 ), and in that the foot ( 4 ) has complementary guiding means ( 46 ) which surround its longitudinal axis ( 41 ) the form of which is at least partially complementary to the guiding means ( 56 ) of the pin ( 5 ) and configured such that they permit a coaxial sliding of the pin ( 5 ) relative to the foot ( 4 ) along an axis (D). 
   
   
       22 . The connecting assembly ( 1 ) according to  claim 1 , wherein the pin ( 5 ) can be inserted into a cavity ( 49 ) formed in the foot ( 4 ) by orienting the longitudinal axes ( 41 ,  51 ) of the foot ( 4 ) and of the pin ( 5 ) along an axis (D) and by coaxial sliding in a direction of insertion (S) along the axis (D). 
   
   
       23 . The connecting assembly ( 1 ) according to  claim 1 , wherein the fixing means ( 40 ) tightly seal the opening ( 30 ). 
   
   
       24 . The connecting assembly ( 1 ) according to  claim 1 , wherein the second elastic axial restoring means ( 43 ) clamp the add-on element ( 2 ) between a support surface ( 431 ) of the second elastic axial restoring means ( 43 ) and a support surface ( 502 ) of the pin ( 5 ).