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US 2018/0169958 A1Published application
Thermoplastic frictional connector
AssigneeEJOT GmbH & Co. KG
InventorsMirko BECKER, Steffen LORENZ, Ingo KRAUSSER
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AssigneeEJOT GmbH & Co. KG
InventorsMirko BECKER, Steffen LORENZ, Ingo KRAUSSER
Estimating the term…
The invention relates to a method for producing a component bond (70, 140) comprising: a fastening structure (60, 160) that has at least one component layer (60A, 60a; 160a, 160b); and a thermoplastic connecting element (10, 110) having a head (12, 112) and a shank (14, 114), in which method the connecting element (10, 110) is driven into the fastening structure (60, 160) under pressure whilst rotating, such that the shank (14, 114) penetrates the fastening structure (60, 160). The connecting element (10, 110), after penetrating the fastening structure (60, 160), is converted by friction into a softened, free-flowing state in a die (44, 144) which is placed against the fastening structure (60, 160) in the opposite direction to the driving direction, resulting in a thicker section (22, 22) that extends beyond the radial extent of some sections of the shank (14, 114). The fastening structure (60, 160) is thus interlockingly held between the head (12, 112) and the thicker section (22, 122).
Method for producing a component connection (70, 140) comprising a fastening structure (60, 160) that has at least one component layer (60A, 60a;
Method according to one of the preceding claims, characterized in that the fastening structure (60, 160) is constituted by a single component layer (60) or a plurality of component layers (160a, 160b).
Method according to one of the preceding claims, characterized in that the die is removed after the softened and deformed connecting element (10, 110) has hardened.
Connecting element (10, 110) made of a thermoplastic material, characterized in that it has a head (12, 112) and a drive (16, 116), which connecting element (10, 110) includes a shank (14, 114).
Setting tool (30, 130) comprising a driving tool (42, 142) and a counter die (44, 144) provided with a shaped recess (50, 150), which driving tool (42, 142) is adapted to rotate a connecting element (10, 110), and the counter die (44, 144) and the driving tool (42, 142) are adapted to be moved axially relative to one another.
Component bond (70, 170) comprising a fastening structure (60, 160) having at least one component layer (60, 160a, 160b), which fastening structure (60, 160) is penetrated by a thermoplastic connecting element (10, 110) whose head (12, 112), which is provided with a drive, rests against a first surface of the fastening structure (60, 160) and whose end facing away from the head (12, 112) forms a thicker section which latter rests against the surface of the fastening structure (60, 160) which is opposite the head (12, 112).
Dependencies are inferred from the claim text.