Patent ID: 11913526
Assignee: EDSCHA ENGINEERING GMBH
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  E | IPC E  F

Claim 0:
1. A spindle rod for a spindle device, comprising:
a threaded rod with a threaded portion extending along a spindle axis and
a coupling part for coupling the threaded rod to a drive or a gear of a drive device,
wherein the coupling part is a cold extrusion part made of a metal or metal alloy,
wherein the coupling part is integrally connected to a first end of the threaded rod,
wherein the coupling part is connected to the first end of the threaded rod by welding,
wherein the welding is friction welding,
wherein the coupling part has a connecting portion provided for connecting the threaded rod at a first end facing the threaded rod,
wherein the connecting portion has a bead-shaped thickening,
wherein a radially circumferential groove is limited in one side by the bead-shaped thickening,
wherein an elastic sealing element is pressed into the circumferential groove delimited on one side by the connecting portion,
wherein the bead-shaped thickening is arranged between the groove and the first end of the threaded rod, and
wherein the bead-shaped thickening is a weld bead.