Drilling device for drilling plates susceptible to breaking

US4730420A · kind A · utility

Assignee

• Benteler-Werke AG · DE

Inventors

• Herbert Stratmann · Bochum, DE
• Joachim Korswird · Bramsche, DE
• Uwe Werner · Hütten, CH

Key dates

• Filing date: Jan 31, 1986
• Grant date: Mar 15, 1988
• Expiry date: Jan 31, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T408/55
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A drilling machine for drilling holes in glass panes includes an annular support and an annular pressing member aligned opposite each other along a path of movement of the drill bit. The support and the pressing member are swingably mounted relative to the axis of the drill bit and are made preferably as inner rings of a ball and socket joint.