Linear drive with a buffer device

US5469775A · kind A · utility

Assignee

• Festo AG & Co. KG · DE

Inventors

• Kurt Stoll · Eßlingen, DE
• Dieter Waldmann · Großenhain, DE
• Thomas Feyrer · Eßlingen, DE

Key dates

• Filing date: May 13, 1994
• Grant date: Nov 28, 1995
• Expiry date: May 13, 2014

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F15B15/226
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A linear-drive device with a housing (1) in which a drive element (3) is fitted in such a way that longitudinal motion is permitted. On the outside of the housing (1) is a longitudinal guide element (16) on which a guide rail (18) is mounted, also in such a way that longitudinal motion is permitted. A lug (14) projecting through a longitudinal slot (13) in the housing (1) connects the drive element (3) with the guide rail (18). In order to prevent the lug (14) being damaged if the drive element (3) strikes one of the end stops, a buffer device (30) acting in the direction of motion is located in the connection between the guide rail (18) and the drive element (3).