摘要:
A method of attaching a fastener to one or more plastically deformable panels, said fastener including a tubular barrel portion, a flange portion extending radially from adjacent said barrel portion and a fastener portion, said method comprising the steps of locating said fastener opposite a first panel, with the free end of said barrel portion facing said first panel; driving said fastener barrel portion free end through an opening formed in said first panel; receiving said flange portion against said panel and securing said fastener to said panel by deforming an outer surface of said barrel portion radially outwardly and against said first panel to form a mechanical interlock between said barrel portion and said first panel, preventing pull-out of said fastener from said opening formed in said first panel, is characterized in that said fastener flange portion includes an annular groove surrounding said barrel portion and a plurality of radial ribs bridging said groove and said step of driving said barrel portion free end through an opening formed in said panel comprises the step of driving said barrel portion free end against said first panel to pierce a slug from said panel and deforming said first panel into said annular groove and said ribs into said panel thus preventing rotation of said fastener in said first panel.
摘要:
An element (10), for example an element with a hollow body or a bolt element, in particular a nut element, for attachment to a plate-like component (16), has a ring-shaped recess (18) present at an end face of the element (10) facing the component within a raised ring-shaped contact surface (42). At least one undercut (25, 27) is preferably provided in a side wall (24, 26) of the recess (18), and also features (74, 76) providing security against rotation are provided. A cylindrical punch section (32) concentric to the central longitudinal axis (22) of the element projects at the said end face within the ring-shaped recess and the outer boundary wall (26) of the cylindrical punch section has a preferably ring-shaped undercut (27). A material supply (52) is formed at or adjacent to the free end face (34 of the cylindrical punch section and is displaceable at least locally by means of a die button (12) on insertion of the element into the ring-shaped recess (18) in order to capture or clamp material of the component (16) which has previously been pressed by the die button (12) into the ring-shaped recess (18) between itself and the base surface (30) of the ring recess (18). In this way an improved security against rotation, an elevated press-out resistance and an improved behaviour against alternating loads in operation is achieved.
摘要:
Ein durch Nieten in ein Blechteil einsetzbares Element bestehend aus einem Schaftteil (16) und einem einstückig daran angeformten Kopfteil (12) zeichnet sich dadurch aus, daß das Element (10) an seiner als Anlagefläche (30) dienenden Unterseite konkave, umfangsmäßig geschlossene Felder (20) aufweist, welche teilweise durch sich vom Schaftteil (16) nach außen wegerstreckende Rippen (22) begrenzt sind, wobei die schaftseitigen Enden (24) der Rippen sich erhaben am Schaftteil (16) entlang erstrecken und an den dem Kopfteil abgewandten Enden in mindestens eine sich spiralförmig um das Schaftteil (16) herum angeordnete Vertiefung (28) übergehen. Beim Zusammenbau des Elementes mit einem Blechteil (52) wird das Material des Blechteiles plastisch in die geschlossenen Felder (20) und in die Vertiefung (28) hineingedrückt und führt zu einer ausgezeichneten vernieteten Verbindung zwischen dem Element (10) und dem Blechteil (52).
摘要:
Ein Setzkopf (10) zum Einsetzen von aus Kopf- (22) und Schaftteilen (24) bestehenden Elementen in ein vorgelochtes Werkstück (18) sowie das dazuhörige Verfahren zeichnet sich dadurch aus, daß das jeweils einzusetzende Element (20) im Setzkopf (10) von mindestens drei Haltefingern haltbar ist, wobei jeder Haltefinger (90) das Element (20) zunächst sowohl am Kopfteil (22) als auch im Abstand davon am Schaftteil (24) in Setzrichtung zentriert, ausrichtet und positioniert.
摘要:
The invention relates to a method of attaching a fastener to one or more plastically deformable panels, said fastener including a tubular barrel portion, a flange portion, said method comprising the following steps:
a) locating said fastener opposite a first panel, with the free end of said barrel portion facing said first panel; b) driving said fastener barrel portion free end through an opening formed in said first panel; c) receiving said flange portion against said panel and securing said fastener to said panel by deforming an outer surface of said barrel portion spaced from said free end radially outwardly and against said first panel to form a mechanical interlock between said barrel portion and said first panel, preventing pull-out of said fastener from said opening formed in said first panel.
The invention also relates to a fastener for use in such a method and to a fastener and panel assembly.