Patent application number | Description | Published |
20100129173 | COMPONENT ASSEMBLY CONSISTING OF A FASTENER ELEMENT AND A SHEET METAL PART AND ALSO A METHOD FOR MANUFACTURING SUCH A COMPONENT ASSEMBLY - A component assembly comprising a sheet metal part and a fastener element which has a flange part of larger diameter and a shaft part of smaller diameter which extends away from the flange part and merges at its end remote from the flange part into a cylindrical rivet section is characterized in that the fastener element is designed for use with sheet metal parts with thicknesses in the range of 3 mm and larger. With relatively thin sheet metal parts the sheet metal part has a smooth pierced cylindrical opening which has a diameter corresponding to the diameter of the shaft part, with the cylindrical rivet section being reshaped to a rivet bead which contacts the underside of the sheet metal part. With sheet metal parts of medium thickness the sheet metal part has a stepped hole with the hole region of larger diameter receiving the rivet bead. For relatively thick sheet metal parts the sheet metal part has a conical pierced hole and the cylindrical rivet section is reshaped to a conical rivet bead which is wedged in the conically diverging hole. | 05-27-2010 |
20110211932 | SELF-PIERCING NUT ELEMENT AND COMPONENT ASSEMBLY CONSISTING OF THE NUT ELEMENT AND A SHEET METAL PART - A piercing nut element having a strength in the range between 700 and 900 MPa which is designed to be pressed into the sheet metal part. The nut element is characterized in that the self-piercing attachment of the nut element into a sheet metal part of higher strength, or into a sheet metal part with a thickness greater than 3.5 mm, the nut element is designed in such a way that the piercing section has a peripheral extending groove below the sheet metal contact surface and in that the piercing section has a piercing edge at its free end face with the piercing edge being spaced from the boundary of the groove adjacent to the piercing section by a peripheral surface having an axial height which corresponds to at least 30% and preferably to at least 50% of the sheet metal thickness, wherein the radial wall thickness of the piercing section in the region of its free end face from the outer side of the piercing section up to the nominal diameter of the thread corresponds to a thickness between 1.2 to 1.8 and preferably 1.5 times the intended sheet metal thickness. | 09-01-2011 |
20120028070 | SELF-PIERCING NUT ELEMENT AND COMPONENT ASSEMBLY COMPRISING THE NUT ELEMENT AND A SHEET METAL PART - A self-piercing nut element having a strength in the range between 700 and 900 MPa is described which is designed for press fitting into a sheet metal part ( | 02-02-2012 |
20120216390 | COMPONENT ASSEMBLY CONSISTING OF A FASTENER ELEMENT AND A SHEET METAL PART AND ALSO A METHOD FOR MANUFACTURING SUCH A COMPONENT ASSEMBLY - A component assembly comprises a sheet metal and a fastener element. A flange has a larger diameter and a shaft of smaller diameter extends away from the flange and merges at its end remote from the flange into a cylindrical rivet section. The fastener element is used with sheet metals with thicknesses in the range of 3 mm and larger. With thin sheet metal parts the sheet metal has a smooth pierced cylindrical opening with a diameter corresponding to the diameter of the shaft. The cylindrical rivet section is reshaped to a rivet bead contacting the sheet metal underside. Medium thickness sheet metal parts have a stepped hole with the hole region of larger diameter receiving the rivet bead. For thick sheet metal parts the sheet metal has a conical pierced hole and the cylindrical rivet section is reshaped to a conical rivet bead wedged in the conically diverging hole. | 08-30-2012 |
20130185917 | BOLT ELEMENT AND A METHOD FOR THE ATTACHMENT OF A BOLT ELEMENT TO A COMPONENT OF A COMPOSITE MATERIAL - A method for the attachment of a bolt element to a component is described. The bolt element has a head part having a contact surface and a shaft part extending away from the head part, the shaft part having a tip provided at its end remote from the head part, the tip merging into a thread cylinder, optionally via a cylindrical region. The bolt element is pressed with the tip to the fore against the component and the tip is pressed through the component until the side of the component adjacent the head part of the bolt element enters to contact the thread cylinder and the tip thereby generates a hole in the component. The bolt element is subsequently turned so that the thread of the thread cylinder forms an internal thread in the wall of the hole. A bolt element is also claimed. | 07-25-2013 |
20130185921 | METHOD FOR THE ATTACHMENT OF A HOLLOW ELEMENT SUCH AS A HOLLOW RIVET OR A NUT ELEMENT TO A COMPONENT CONSISTING OF A COMPOSITE MATERIAL - A method for the attachment of a hollow element such as a hollow rivet or a nut element to a component consisting of a composite material, with the element having a flange part and a shaft part or rivet section extending away from the flange part, wherein a rivet section can also be formed at the free end of a shaft part. The hollow element has a central passage which is optionally provided with a thread cylinder. In the method an auxiliary tip is either passed from the flange side of the element remote from the shaft part and/or the rivet section through the passage or is introduced from the side of the free end of the shaft part and/or of the rivet section into the passage such that a conically converging region of the auxiliary tip projects from the free end of the shaft part or of the rivet section. The hollow element is pressed with the tip to the fore against the component and the tip is pressed through the component until the component comes into engagement with the side of the flange part adjacent to it and the tip has produced a hole in the component. | 07-25-2013 |
20130189054 | COMBINATION OF FUNCTIONAL ELEMENT AND PRESSURE PLATE - The invention relates to a combination of a functional element having a flange section and a connection section, in particular a rivet element, and a pressure plate, in particular a pressure plate having an opening, for attachment to a component, in particular to a panel of composite material or sheet metal, wherein the functional element and the pressure plate are formed to be arranged on opposite sides of a hole of the component and are to be connected together via the connection section which extends through the hole, in particular by riveting, in order to clamp a region of the component surrounding the hole between the flange section and the pressure plate and wherein the pressure side of the pressure plate confronting the component in the attached state is provided with a means providing security against rotation. | 07-25-2013 |
20130207298 | METHOD FOR THE MANUFACTURE OF A HOLE IN A COMPONENT CONSISTING OF A COMPOSITE MATERIAL - A method for the manufacture of a hole in a component consisting of a composite material, such as a fiber reinforced plastic part or a fabric reinforced plastic part, which is characterized in that the component having first and second oppositely disposed sides is placed with its first side on a support having an iris diaphragm, in that a tip which diverges in the axial direction is pressed coming from the second side of the component through the component, which optionally has a pre-piercing, for the formation of the hole or for the enlargement of the pre-piercing and in that the iris diaphragm has a smaller starting opening which receives a narrower region of the tip and opens into a larger opening with increasing penetration of the component by the tip, whereby the component is supported during the hole formation over an as large as possible area from the first side. A piercing aid in the form of an iris diaphragm or a corresponding die button is likewise claimed. | 08-15-2013 |
20140241831 | HOLLOW ELEMENT FOR ATTACHMENT TO A COMPONENT COMPRISING A COMPOSITE MATERIAL - A hollow element such as a hollow rivet or a nut element for attachment to a component consisting of a composite material such as a fiber reinforced plastic part or a fabric rein-forced plastic part is presented. The element has a flange part and a shaft part extending away from the flange part and/or a rivet section, wherein the rivet section, is present, can also be formed at the free end of the shaft part, with the a hollow element furthermore having a central passage, which is optionally provided with a thread cylinder. The hollow element is used in combination with an auxiliary tip which is either inserted from the flange side of the element through the passage, or from the side of the free end of the shaft part of the rivet section into the passage, such that a conically converging region of the auxiliary tip projects from the free end of the shaft part or of the rivet section. | 08-28-2014 |