Vehicular lighting unit, apparatus and method for producing the

Details Vehicular lighting unit, apparatus and method for producing the Vehicular lighting unit, apparatus and method for producing the

1995-04-13

1996-08-13

Gromada, Denise L.

Illumination

Vehicle steering mechanism or element moves pivoted lamp or...

Tie rod element controlled

362 66, B60Q 102

Patent

active

055462855

ABSTRACT:
A vehicular lighting unit, free from weld lines and "sink marks", in a lens having aiming pads, including recessed parts, provided in the backs of the aiming pads. The recessed parts are made similar in outer configuration to the aiming pads by providing a uniform thickness of the aiming pads, formed on a lens, which protrude from the lens along the surface configuration. Two molds are provided, with a recessed portion, and a projection, respectively, and the recessed portion is supplied with a through-hole, with an insert pin passed therethrough, so as to prevent disturbances in the flow of resin in the aiming pad, trapping of air, an increase in wall-thickness and generation of weld lines and "sink marks."

REFERENCES:
patent: 3520618 (1970-07-01), Bentley
patent: 4318162 (1982-03-01), Sip
patent: 4451873 (1984-05-01), Tyler et al.
patent: 4628414 (1986-12-01), Ricard
patent: 4669035 (1987-05-01), Hyde et al.

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