SUN VISOR WITH ILLUMINATED MIRROR

Abstract: The present invention relates to a sun visor for vehicles, which is provided with an illuminated mirror. The invention relates in particular to simplified manufacture of such sun visors. According to the invention, the mirror unit consists only of a mirror plate (1) with openings (2,3), of units (4) consisting of lamp holders (6) and prisms (5), said units being pressed into said openings, and of contact means for supplying electric current to the lamps of the illuminating units.

Description: The present invention relates to an illuminated mirror assembly to be inserted into a recess in the back of a sun visor of the type disclosed in WO-A-85/00028. Such mirror assemblies often have a complicated structure with many component parts thus resulting in high manufacturing and assembly costs. The present invention has the purpose of reducing these costs by achieving an easily manufactured and easily assembled mirror assembly with few component parts. One step in this direction has already been taken as described in the publication WO 85/00028, which reveals a mirror assembly in which the lamps of the illuminating unit are arranged in a recessed portion of the plate constituting the mirror. These lamps are partially supported by said plate. According to the invention by means of an illuminated mirror assembly with the characteristics defined in claim 1, there is achieved an additional simplification of the construction of such an assembly. Since the mirror is self-supporting, no frame is needed to stabilize it and by virtue of the fact that the prism with integrated lamp holders in the illumination unit are pressed into the opening in the mirror, an elegant mounting of the lamps is achieved. Further developments in line with claim 1 are referred to in the dependent claims. These and other characteristics and advantages will become evident from the following detailed description of an example of the invention with reference to the accompanying drawings, of which: Fig 1 shows schematically the mirror assembly according to the invention in an exploded view, Fig 2 shows a sun visor with a mirror assembly according to the invention, Fig 3 shows a section along the line III-III in Fig 2, Fig 4 shows a section along the line IV-IV in Fig 2, and Fig 5 shows a section along the line V-V in Fig 2. The mirror assembly shown schematically in Fig 1 consists of a mirror plate 1 of highly polished sheet metal for example. The plate 1 contains two openings 2,3, in which units 4 consisting of a prism 5 and a lamp holder unit 6 are pressed. 7 indicates a current supply unit and 8 or 8a indicates a cover or covers hinged to the upper longitudinal side of the mirror plate or its short sides by means of hinges 9, which are suitably fixed by gluing, for example, to the back of the plate 1. A precondition for being able to use the structure shown in Fig 1 is that the plate 1 be self-supporting and also sufficiently rigid to be able to support the cover 8 or covers 8a without being deformed. If the plate 1 is made of sheet metal, it can also be used as a conductor for simplifying wiring. In this case, one of the connection terminals is the plate itself, for example by a local continuation of the inwardly bent stamped out portion 1a at the level of the lower end of the lamp 10. The other contact terminal including the positive wire is connected in a suitable manner to the back of the mirror plate with a portion extending into the area behind the opening 2,3. Furthermore, a switch (not shown) is arranged which is actuated in a suitable manner by the closing and opening of the cover to break and complete the current circuit. Figs 2-5 show schematically the device according to the invention. As can be seen from these figures, the mirror plate 1 is fixed in a recess in the sun visor S, preferably by gluing. The recess for the sun visor is deeper both in its upper portion to accommodate the cover 8 and its hinge mechanism, as can be seen in Fig 3, and behind the openings 2,3 in the mirror plate 1 to provide space for the illumination units 4 (see Fig 4) as well as between the upper ends of the deeper recesses for the lamps to provide space for the positive contact terminal extending along the back of the mirror plate between the upper ends of the lamps 10 being fixed to and electrically insulated from the mirror back. Fig 5 shows in larger scale one variant of the unit 4 to be pressed into the openings 2,3. The unit consists of a prism 5 and a lamp holder-shade 6. 1a designates an inwardly bent portion of the mirror plate 1, which portion functions as a reflector in the illumination unit. By virtue of the fact that the lamp 10 is placed to one side of the prism 5, only indirect light will leave the prism. It is evident from Fig 1 that a special current supply unit 7 can be used instead of the previously described wiring system, for example if the mirror plate is not made of conducting material. The invention thus provides an illuminated mirror assembly with a small number of components. The mirror assembly is quite cheap to manufacture and simple to assemble. Furthermore, it is quite simple to replace burnt out lamps because the prisms are easily pulled out of the openings in the mirror plate. Finally, the mirror plate is rigid enough so that it can support a hinged cover without being deformed. Modifications of the embodiment shown are of course conceivable within the scope of the invention. For example, the mirror plate need not support a cover, and the openings and thus the units consisting of lamp holder and prism can have other shapes than the rectangular shape shown. The scope of the invention is thus only limited by the attached patent claims.

Claims: An illuminated mirror assembly to be inserted into a recess in the back of a sun visor (S) comprising: a mirror plate (1) a lamp holder (6) for a lamp a prism contact means for supplying electrical current to the lamp. characterized in that the lamp holder (6) and the prism (5) constitute an individual illumination unit (4) and the mirror plate (1) is provided with an opening (2, 3) for accommodating said individual illumination unit (4). A mirror assembly according to Claim 1, characterized in that a cover (8) or covers (8a) are hinged to the mirror plate (1) via hinge means, one portion (9) of which being fixed to the back of the mirror plate (1). A mirror assembly according to Claim 1, characterized in that the mirror plate (1) is made of highly polished sheet metal. A mirror assembly according to Claim 3, characterized in that the mirror plate (1) is used as an electrical conductor. A mirror assembly according to Claim 4, characterized in that the openings (2,3) in the mirror plate are formed by bending stamped-out portions (1a) from the plane of a mirror, said portions (1a) also comprising a contact terminal for the illumination units (4) by suitable stamping and bending of stamped-out parts.

Inventors: SVENSSON, GUNNAR E.
Applicants: AUTOPART SWEDEN AB
Application year: 1987
Main classification: B60J3
IPC codes: B60Q3, B60J3