摘要:
A method for joining two objects by anchoring an insert portion provided on one of the objects in an opening provided on the other one of the objects. The anchorage is achieved by liquefaction of a thermoplastic material and interpenetration of the liquefied material and a penetrable material, the two materials being arranged on opposite surfaces of the insert portion and the wall of the opening. Before such liquefaction and interpenetration, an interference fit is established in which such opposite surfaces are pressed against each other, and, for the anchoring, mechanical vibration energy and possibly a shearing force are applied, wherein the shearing force puts a shear stress on the interference fit.
摘要:
A method for joining two objects by anchoring an insert portion provided on one of the objects in an opening provided on the other one of the objects. The anchorage is achieved by liquefaction of a thermoplastic material and interpenetration of the liquefied material and a penetrable material, the two materials being arranged on opposite surfaces of the insert portion and the wall of the opening. Before such liquefaction and interpenetration, an interference fit is established in which such opposite surfaces are pressed against each other, and, for the anchoring, mechanical vibration energy and possibly a shearing force are applied, wherein the shearing force puts a shear stress on the interference fit.
摘要:
The invention relates to furniture joint (1) comprising a first furniture part (5) having a first and a second male part (7, 8), and a second furniture part (6) having a first and a second female part (9, 10). The first and the second male parts (7, 8) each are formed by a dowel (11, 15) extending in a longitudinal direction and having a free end (12, 16). The first female part (9) is formed by a recess (18) having a curved extension between a first end portion (23) and a second end portion (24), said first end portion (23) forming an insertion portion (26). The second female part (10) is formed by a recess (25) having a straight-linear extension between a first end portion (60) and a second end portion (61), said first end portion (60) forming an insertion portion (32). The furniture joint (1) is adapted to be set to a mounting position by moving the first furniture part (5) along the longitudinal directions of said dowels (11, 15) such that the insertion portion (26) of the first female part (9) receives the free end (16) of the dowel (11) and such that the insertion portion (32) of the second female part (10) receives the free end (16) of the dowel (15), and from the mounting position to a locking position by rotating the first furniture part (5) in view of the second furniture part (6) such that the dowel (11) forming the first male part (7) is moved along the curved recess (18) from the first end portion (23) to the second end portion (24), while the dowel (15) forming the second male part (8) is rotated and moved along the straight- linear extension of the recess (25) from the first end portion (60) to the second end portion (61). The first and second furniture parts (5, 6) are in said locking position prevented from being separated in the longitudinal direction of said dowels (11, 15).
摘要:
A joining element has an anchoring portion for in-depth anchoring in the object and a head portion arranged proximally of the anchoring portion with respect to an insertion axis. The head portion has a lateral outer surface that has a structure that is well-defined, especially within tight tolerances. The joining element is positioned relative to an object of a non-liquefiable material such that the anchoring portion reaches into an opening of the object or is placed adjacent a mouth thereof. Then, the joining element is pressed towards a distal direction, to press the anchoring portion into the opening, while mechanical vibration energy is coupled into the joining element by a tool, in an amount and for a time sufficient for liquefaction of a portion of the thermoplastic material to cause interpenetration of the thermoplastic material into structures of the object.
摘要:
A joining element has an anchoring portion for in-depth anchoring in the object and a head portion arranged proximally of the anchoring portion with respect to an insertion axis. The head portion has a lateral outer surface that has a structure that is well-defined, especially within tight tolerances. The joining element is positioned relative to an object of a non-liquefiable material such that the anchoring portion reaches into an opening of the object or is placed adjacent a mouth thereof. Then, the joining element is pressed towards a distal direction, to press the anchoring portion into the opening, while mechanical vibration energy is coupled into the joining element by a tool, in an amount and for a time sufficient for liquefaction of a portion of the thermoplastic material to cause interpenetration of the thermoplastic material into structures of the object.