Assembly locking device, thread bolt with assembly locking device, a component with installed thread bolt as well as a manufacturing method for the assembly locking device and an assembly method of the thread bolt with assembly locking device

US11339822B2 · kind B2 · utility

Assignee

• Böllhoff Verbindungstechnik GmbH · DE

Inventors

• Klaus-Friedrich Grubert · Hannover, DE
• André Röhr · Geneva, CH
• Helmut Schafer · Bargteheide, DE
• Rayk Gutsche · Stuttgart, DE

Key dates

• Filing date: Mar 3, 2021
• Grant date: May 24, 2022
• Expiry date: Mar 3, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B39/10
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An assembly locking device adapted to a normalized standard or fine thread of a thread shaft of a thread bolt, so that the locking device is positionable in a loss-proof manner on the thread of the thread shaft. The locking device includes: a cylindrical turn comprised of a plurality of helically wound turns, of a wire, a transition turn and adjacent to the second end of the helix is a blocking turn which has a negative pitch PB compared to the holding turn, so that at least an end portion of the blocking turn is elastically displaceable in the axial direction of the central longitudinal axis between an insertion position and a blocking position. The end portion of the blocking turn forms the second end of the helix and in the blocking position is arranged radially outwardly of the transition turn and/or the holding turn.