Light grid with housing

US7348536B2 · kind B2 · utility

Assignee

• SICK AG · DE

Inventors

• Guenter Bockel · Waldkirch, DE
• Ralf Friedrich · Herzogenaurach, DE
• Christof Meyer · Waldkirch, DE
• Martin Wuestefeld · Waldkirch, DE

Key dates

• Filing date: Sep 22, 2005
• Grant date: Mar 25, 2008
• Expiry date: Feb 20, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V8/20
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A light grid which has a housing made from an extruded profile. An electronic component plate is movably insertable into the interior of the housing and carries the optical components of an emitter unit or a receiver unit, respectively. The housing has a support plate and an intermediate web which connect spaced-apart side walls of the profile and include openings. The support plate also has openings into which corresponding optical function elements are inserted. The openings in the intermediate webs serve as apertures. To precisely align the component plate with the optoelectronic components thereon relative to the housing, positioning pins are inserted through openings in the support plate and the intermediate web and which further engage locating holes in the component plate.