RICHARD BERGNER VERBINDUNGSTECHNIK GMBH & CO. KG Patent applications |
Patent application number | Title | Published |
20140345113 | METHOD AND PRESSING DEVICE FOR FORMING A PRESS CONNECTION BETWEEN A FITTING ELEMENT AND A PRE-PUNCHED COMPONENT - In order to reliably ensure a press-in connection between joining elements, in particular a press-in nut and a pre-punched component, a press-in device contains a die which has a die ring and a die mandrel. The die mandrel is mounted counter to a spring force in the manner of a pilot pin. In addition, the die ring is also mounted counter to a spring force such that a two-stage press-in operation is carried out. Preferably, during a first press-in stage an anti-rotation lock is formed between the press-in nut and the component and in a second press-in stage an axial pull-out prevention measure is formed. To this end, the die mandrel deforms a nut flange. | 11-27-2014 |
20140186133 | JOINT CONNECTION BETWEEN TWO COMPONENTS, RIVET SLEEVE AND BLIND RIVET FOR SUCH A JOINT CONNECTION AND METHOD FOR PRODUCING SUCH A JOINT CONNECTION - In order to form a reliable blind rivet connection in the case of a joined connection between two components having at least one laminate component, without the risk of delamination of the laminate component, a two-layer structure of the rivet sleeve of the blind rivet is provided. The inner layer is formed in this case of a higher strength material, in particular of stainless steel. The outer layer is formed of a softer material, in particular plastics material. | 07-03-2014 |
20140033510 | DEVICE AND METHOD FOR REVERSIBLY GRIPPING A BOLT-SHAPED ELEMENT, IN PARTICULAR A RIVET MANDREL - The device for reversibly gripping a rivet mandrel has a tension head with a mouthpiece sleeve and a clamping jaw sleeve axially movable in the mouthpiece sleeve and accommodating a plurality of clamping jaws. The clamping jaws reversibly grip the rivet mandrel during an axial displacement of the clamping jaw sleeve and the clamping jaws are furthermore held by an elastic holding element. The jaws are displaceable relative to one another independently of an actuation by the clamping jaw sleeve. This enables improved introduction and gripping of the rivet mandrel, especially for fully automated blind rivet operations, for example with blind rivet robots. Due to the elastic holding of the clamping jaws, wear on one side of the clamping jaws is avoided. Also, a controlled displacement of the clamping jaws independently of the clamping jaw sleeve is provided. | 02-06-2014 |
20140033505 | ELECTRIC DRIVE FOR A PROCESSING TOOL SUCH AS A BLIND RIVET SETTING APPLIANCE, PROCESSING TOOL AND METHOD FOR THE CLOSED-LOOP CONTROLLED SETTING OF A RIVET WITH SUCH AN ELECTRIC DRIVE - An electric drive for a processing tool, in particular for a rivet setting appliance, has an electric motor connected to an actuating element that is linearly displaceable in an axial direction. A damping element that acts in the axial direction is arranged between the electric motor and the actuating element for impact decoupling of the electric motor from the actuating element. As a result, sudden loads, for example if a rivet mandrel breaks during the blind rivet setting operation, are absorbed in a material-conserving manner. | 02-06-2014 |
20130312245 | METHOD FOR SETTING A BLIND RIVET, BLIND RIVET AND PULLING HEAD FOR RECEIVING OF A BLIND RIVET - In order to ensure that the process of setting a blind rivet is reliable, during the setting operation a rivet mandrel is gripped by gripping jaws of a tension head and is pulled in the axial direction for deforming a rivet sleeve. The tension head and the rivet mandrel, in this case, are matched to one another in such a manner that the gripping jaws initially slide along a gripping portion along the rivet mandrel in their closed position until they reach a predetermined tension position, which is defined in particular by a stop, from which the necessary tensile force for the deforming of the rivet sleeve is first transferred onto the rivet mandrel. | 11-28-2013 |
20090313803 | Method for making a press-in connection between a joining element and a workpiece, press-in connection, and joining element - In order to form a reliable, process-safe pressout- and twist-safe press-in connection between a joining element and a workpiece, the joining element is pressed with a shank region into a hole in the workpiece, with shank material of the shank region being pressed into a reception space between the shank region and the hole margin for this purpose, so as to make a frictional connection, without a positive form-lock connection which acts in the axial direction being made. As a result, it becomes possible to have a pressout-safe press-in connection without deformation of the hole, along with a level metal sheet underside, and without the formation of a fastening collar. The press-in connection is suitable particularly in the case of a combination of a low-strength joining element with a higher-strength metal sheet. | 12-24-2009 |
20090110478 | ASSEMBLY UNIT - An assembly unit attachable to a base structure has at least one assembly part with a through opening and at least one fastener with a radially expanded head and a shaft that is provided with a fastening section extends through the through opening and is held captive therein. The shaft is encircled by a sleeve and the head of the fastener projects in a radial direction over the sleeve. Two stop elements project from the outer circumferential surface of the sleeve. An axial catch projects from the wall of the through opening. The axial catch and the stop elements are embodied such that they can be moved past each other in axial direction. The axial catch inside the through opening and the second stop element on the outer circumferential surface are respectively arranged in an axial position. The fastening section is arranged in a specific axial position relative to the surface of the assembly part that is facing away from the head. | 04-30-2009 |