Electromagnetically actuated brake

US6269917A · kind A · utility

Assignee

• HARTING KGAA · DE

Inventors

• Dietmar Harting · Espelkamp, DE
• Wilhelm Niermann · Wehdem, DE
• Wolfgang Neuhaus · Bad Oeynhausen, DE

Key dates

• Filing date: Nov 5, 1999
• Grant date: Aug 7, 2001
• Expiry date: Nov 5, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2121/22
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

For an electromagnetically actuated brake, in particular a stopping brake, having a high stopping moment and short braking paths and consisting of a cam disc (3) which is guided in a torsion-proof manner, a spring (4) which presses the cam disc axially into the locking position, and an electromagnet (5, 6, 7) which unlocks the cam disc against the spring (4), it is proposed that the axially movable cam disc (3) be of ferromagnetic construction and that a number of cams (31) be provided which engage, in a form-locking manner, in the recesses (11) in the rotatable part (1) to be braked, the cams (31) and recesses having flanks standing perpendicularly to the direction of rotation and the spring being constructed as a leaf spring (4) with three bending arms which act upon the face of the cam disc (3) at an equal distance from one another.