Column of telescopically adjustable length

US4183689A · kind A · utility

Assignee

• Stabilus GmbH · DE

Inventors

• Winfried Wirges · Koblenz, DE
• Egon Sentinger · Koblenz, DE

Key dates

• Filing date: Jun 26, 1978
• Grant date: Jan 15, 1980
• Expiry date: Jun 26, 1998

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T403/32606
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A column in which an inner elongated member of circular cross section is partly received in the polygonal bore of an outer, tubular member and secured against angular displacement about the common axis by guide elements secured against longitudinal movement in respective recesses of the inner member open toward the outer member and engaging the outer member in respective corners of its polygonal cross section. A manually controlled arresting mechanism permits the two column members to be arrested against relative longitudinal movement in a multiplicity of relative positions.