Safety device on a quill

US4742621A · kind A · utility

Assignee

• Mauser-Werke Oberndorf GmbH · DE

Inventors

• Manfred Mayer · Niedernhausen, DE
• Gerhard Band · Obermoschel, DE

Key dates

• Filing date: Dec 12, 1986
• Grant date: May 10, 1988
• Expiry date: Dec 12, 2006

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B7/002
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A safety device on a quill with a sensing head fixably connected thereto interrupts a positioning motion of the quill in case of a collision of the sensing head. For this purpose there is fastened to the quill a mounting plate 6, on which rests a bearing plate on at least three balls 20. The sensing head is fixable to the bearing plate. Several switches and switching cams assigned to them are offset relative to the balls on the bearing plate. In case of a collision of the sensing head, the bearing plate is deflected relative to the mounting plate, thereby causing at least one switch to interrupt the driving motion of the quill.