Slotted anchoring bush

US4673322A · kind A · utility

Assignee

• Hilti Aktiengesellschaft · LI

Inventor

• Erwin Schiefer · Munich, DE

Key dates

• Filing date: Jul 29, 1986
• Grant date: Jun 16, 1987
• Expiry date: Jul 29, 2006

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B13/0858
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An axially extending anchoring bush has a pair of opposite ends with a blind borehole extending axially into the bush from one end with the blind borehole arranged to receive and secure an anchor bolt. The bush has at least three generally axially extending slots ranging from the end opposite the end in which the blind borehole is formed toward the other end. Each slot is located in a different plane with the planes extending obliquely of the axis of the bush. Slots extend inwardly from the axially extending outer surface of the bush and intersect inwardly of the outer surface. The planes of the slots define the axially extending sides of a pyramidally shaped expansion member located inwardly of the slot.