US 2006/0068624 A1Published application

Light grid with housing

AssigneeSick AG

InventorsGuenter Boeckel, Ralf Friedrich, Christof Meyer, Martin Wuestefeld

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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.

Claims7

Dependent claims

A light grid comprising a housing defined by a longitudinally extending profile with parallel, spaced-apart side walls, at least one of spaced-apart radiation emitters and radiation transducers arranged over at least a portion of the length of the housing, an electronic component board positioned in the housing, extending over at least part of a length thereof, and mounting components of the light grid, the profile including a support plate and a spaced-apart intermediate web which are plane-parallel to each other and which connect the side plates, the intermediate web being located between the component plate and the support plate, axially aligned openings respectively arranged in the intermediate web and in the support plate, optical elements mounted in the openings of the support plate, and positioning pins extending through openings in the support plate, fittingly engaging corresponding openings in the intermediate web, and fixing the position of the component plate in the housing.

Dependencies are inferred from the claim text.