Linear drive, longitudinal-adjustment unit for a seat, and motor vehicle

US11679693B2 · kind B2 · utility

Assignee

• IMS GEAR SE & CO. KGAA · DE

Inventors

• Marco WERSCHLER · Radolfzell, DE
• Marcel MITTELBACH · Schluchsee, DE
• Robin Teichmann · Konstanz, DE
• Fabio Mauch · Villingen-Schwenningen, DE

Key dates

• Filing date: Jun 4, 2020
• Grant date: Jun 20, 2023
• Expiry date: Aug 8, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H55/08
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to a linear drive (1), comprising a drive shaft (10) that can be rotated about a longitudinal axis (X), at least one propulsion element (20) having a propulsion tooth (21), a rack (30), and at least one guide means (40), wherein the at least one propulsion element (20) is coupled to the drive shaft (10) in such a way that the propulsion tooth (21) of said element is pressed into the rack (30) in a cyclical movement (21) during a rotation of the drive shaft (10) about the longitudinal axis (X) to generate an advance, and wherein, when the propulsion tooth (21) of the at least one propulsion element (20) is pressed into the rack (30), the at least one guide means (40) forms an abutment which counteracts the rack (30) for the at least one propulsion element (20). In addition, the present invention relates to a longitudinal adjustment unit and a motor vehicle.