Connecting insert and an embedding method and a production method therefor
AssigneeBöllhoff Verbindungstechnik GmbH
InventorsMichael Stumpf, Franck Chalvet, Mohamed-Tahar Rahal, Norbert Perroud
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Abstract
The present disclosure describes a connection insert, in particular a threaded insert, which is embeddable into a formed plastic component. This connection insert comprises a cylindrical main body having a radially outer side, a radially inner side as well as a first and a second axial end, at least one circumferential collar arranged at the radially outer side of the main body which has the largest outer diameter compared to the remaining main body and which is arranged spaced with respect to the first and the second axial end of the main body, and a radially protruding structure arranged at the radially outer side of the main body.
Claims23
Connection insert, which may be molded or embedded into a plastic component and which comprises the following features before molding or embedding into the plastic component:
- a. a cylindrical main body having a radially outer side as well as a first and a second axial end,
- b. at least one circumferential collar arranged at the radially outer side of the main body which has at least partly the largest outer diameter compared to the remaining main body and which is arranged spaced with respect to the first and the second axial end of the main body, and
- c. a radially protruding structure arranged at the radially outer side of the main body,
- wherein
- d. the collar comprises a sectionally changing diameter in a circumferential course, so that a plurality of radial valleys and elevations are arranged in the collar, and wherein
- e. the cylindrical body comprises a central bore with a radially inner side at which a connection structure is provided, or the cylindrical body comprises at the first axial end a bolt like axial extension.
Manufacturing method of a connection insert comprising the following steps:
- a. providing a cylindrical main body of metal having a first and a second end,
- b. positioning the main body with the first end to a first die and with the second end to a second die,
- c. compressing and/or extruding the first and the second end of the main body so that a circumferential collar is formed, which has the largest outer diameter compared to the remaining main body and which is arranged spaced with respect to the first and the second end of the main body, and a radially protruding structure arranged at the radially outer side of the main body, wherein
- d. the collar comprises a sectionally changing diameter in a circumferential course, so that a plurality of radial valleys and elevations are arranged in the collar, and wherein
- e. the cylindrical body comprises a central bore with a radially inner side at which a connection structure is provided, or the cylindrical body comprises at the first axial end a bolt like extension.
Dependencies are inferred from the claim text.