Hella Kg Hueck and Co.

Klaus Hegemann

Josef Bals

Horst Flerlage

Dieter Wystrach

Diethard Raeder

Konrad Schmitz

Highly heat-resistant moldings

A headlight for a vehicle has a bowl shaped light-transmissive shield and a housing of resinous plastic. The housing has at its outer peripheral edge a receiving surface for receiving a foot of the light-transmissive shield. Protrusions on the receiving surface serve as a seating for the light-transmissive shield and, upon mounting the light-transmissive shield on the housing, these protrusions are deformed by pressure of the foot of the light-transmissive shield against them so that they form a narrow, surrounding, bed on at least one side of the foot of the light-transmissive shield. The foot of the light-transmissive shield is held in this bed by a mechanical device which extends between the light-transmissive shield and the housing.

Headlight for vehicles

A headlight for a motor vehicle in which an interior space is enclosed by a housing and a cover lens. The interior space communicates with the surrounding outside atmospheric air through a duct that has an inlet opening and an outlet opening. The duct contains reversably-acting hygroscopic desiccating substance which provides less resistance to flow of air into and out of the interior space, than any other leakage points in the headlight. The duct has a portion projecting into the interior space, and has a substantially high permeability for water molecules in a mixture of water-vapor and air. This portion of the duct resists air flow in establishing pressure equilibrium between the inlet opening and the outlet opening of the duct, so that at least a larger part of air in the duct passes through the inlet and outlet openings. One of these openings is in the interior space, whereas the other opening is located in the atmosphere. The aforementioned portion of the duct inhibits transmission of air through walls of the duct, so that maximum air flow passes through the hygroscopic desiccating substance.

Headlight for vehicles, in particular motor vehicles

The present invention relates to a headlight for vehicles with an interior space enclosed by the reflector and the front cover lens or by the housing and the front cover lens, containing air which is in communication with the atmospheric air surrounding the headlight through the inlet and outlet openings of a duct which is formed by a tube, fabricated from substantially air-impermeable material, projecting from the outside into the interior of the headlight. A reversibly-acting hygroscopic desiccating agent is filled into the duct which provides only a slight resistance to the flow of air into, or out of, the interior of the headlight. The desiccating agent contained in the duct has such an area of contact with the moist air within the headlight that it will absorb enough of the moisture from the air within the headlight, even during the periods of time when the motor vehicle is standing idle, so that condensation of water within the headlight, due to falling temperature, will be avoided. The present invention achieves this object by providing several openings in the walls of the end section of the tube, which projects into the interior of the headlight, to enlarge the contact zone between the desiccating agent and the air within the headlight.

Growing community of inventors

Lippstadt, Germany

Klaus Hegemann