Patent ID: 8760589
Filing Date: 2014-06-24
Classification: F21V,G03B,H04N

Abstract:
1. A retaining system for retaining a replaceable part to a desired location within a housing, the housing defining perpendicular X, Y, and Z directions, and comprising a first edge disposed substantially in a Y-Z plane and a second edge disposed substantially in an X-Z plane, the system comprising: a first retaining member disposed near the first edge of the housing and comprising thin elongate legs, each leg extending substantially in a straight line, wherein the straight lines defined by the legs of the first retaining member together define a shape with components in all of the X, Y, and Z directions, the first retaining member being configured to bias the part in the X and Z directions, such that when the part is displaced outwards from the desired location in the X direction, the first retaining member increases the biasing force inwards in the X direction; and a second retaining member disposed near the second edge of the housing and comprising thin elongate legs, each leg extending substantially in a straight line, wherein the straight lines defined by the legs of the second retaining member together define a shape with components in all of the X, Y, and Z directions, the second retaining member being configured to bias the part in the Y and Z directions, such that when the part is displaced outwards from the desired location in the Y direction, the second retaining member increases the biasing force inwards in the Y direction; wherein each retaining member comprises a thin elongated member comprising bends to thereby define a loop; the loop defined by each member lies substantially in a single plane; and each loop comprises two end points at the respective edge of the housing, and wherein the loop and an imaginary line drawn between the end points substantially defines a polygon.