Mirror and illumination unit for motor vehicles

Abstract: Mirror and illumination unit for motor vehicles, comprisinq a shell (6) flush mounted in the vehicle ceiling (1). A panel (11) with a mirror (12) is hinged at the front edge of the shell (6). An illumination unit (10) is mounted at the rear edge of the shell. A screen (15) provided on the panel with light emitting slots (14) covers, when the panel is in its folded-up position, the illumination unit, so that the face directed lighting will be less when the mirror is in its folded-up position than when it is folded out.

Description: The present invention relates to a mirror and illumination unit for motor vehicles, comprising firstly a hinged mirror unit, which can be swung between a folded-out position, in which its mirror surface is exposed for use, and a folded-up position, in which its mirror surface is hidden behind the side of the unit opposite the mirror surface, and secondly an illumination unit, which is disposed adjacent to the mirror to direct light towards a user. In recent years, it has become more and more popular to equip the sun visors of passenger cars with mirror and illumination units. Such an installation makes the sun visor significantly heavier, which requires increased friction in the hinges of the sun visor and additional spring force in the snap mechanism normally holding the sun visor in the horizontal position. Lighting in the sun visor itself requires wiring to the sun visor itself and this increases complexity and thus the price (see DE-C-3 436 760). The illumination units arranged in the sun visors cannot be used as general lighting in the vehicle but can only be used to direct light towards the person looking in the mirror. It is also known to arrange a mirror on a panel which can be swung down from the ceiling of the vehicle. An illumination unit is placed to one side of the panel and comprises light sources both for general lighting and directed lighting. Such an installation according to the preamble of claim 1 is shown in GB-B-2 177 980, for example. The illumination unit consists here of, on one hand, a fixed unit which is provided with a screen and is recessed mounted into the ceiling and, on the other hand, an adjustable spotlight arranged adjacent thereto. The purpose of the present invention is in general to avoid the disadvantages of visor mounted mirror and illumination units by providing a simple and inexpensive mirror and illumination unit separate from the sun visor. The lighting can serve as a general lighting and as "make up" lighting. In general the purpose is to provide a mirror and illumination unit with a single lighting fixture, which is simple to adjust between different functions. This is achieved according to the invention in a mirror and illumination unit characterized by the features of the characterising portion of claim 1 and of the type described by way of introduction by virtue of the fact that the mirror unit has shade or screen means adapted to the lighting in the illumination unit and is hinged in relation to the illumination unit so that the shade or screen means, when the mirror unit is in its folded-up position, cover at least a portion of the illumination unit to provide a certain diffusion of light from the illumination unit and, when the mirror unit is folded-out, are moved relative to the illumination unit to change the distribution of light. Such ceiling mounted units placed above the passenger seat are suitably provided with screen or grill means, which, when disposed in front of the illumination unit, screen light from the passenger's face. Suitably an illumination unit is selected which when un-screened provides a relatively large diffusion of light so that, when uncovered, it directs a portion of the light towards the passengers face. The design according to the invention provides for switching between screened light and light with greater diffusion automatically as the mirror is flipped down to its position for use. The invention will be described in more detail below with reference to examples shown in the accompanying drawings, where Figure 1 shows a perspective view of one embodiment of a mirror and illumination unit according to the invention, Figure 2 is a view corresponding to Figure 1 with the mirror unit in its flipped-up storage position, and Figure 3 shows a longitudinal section through the unit in Figure 2. In the Figures, 1 generally designates a ceiling panel, 2 designates a windshield and 3 the right windshield post of a passenger car compartment. A sun visor 4 of conventional type is mounted at the top of the windshield. A mirror and illumination unit 5 according to the invention is mounted in the ceiling 1 directly behind the sun visor 4. The unit 5 comprises a rectangular supporting element 6, preferably of moulded plastic, which has a rectangular recess 7 with a surrounding frame portion 8. The recess 7 is fitted into a cavity (not shown) in the ceiling panel 1 and the frame 8 overlaps the edge of the ceiling covering about the cavity to cover the edge. At the front edge of the recess 7 in the supporting element 6, there is hingedly mounted a mirror unit 9 and an illumination 10 is fixed at the bottom of the recess 7 near the rear edge of the depression. The mirror unit 9 comprises a rectangular panel 11, preferably in plastic, which is hinged to either side of the depression, and a mirror 12 flush mounted in the hinge panel 11 and dimensioned so that a lower portion 14 (Figure 1) of the hinged panel is free of the mirror. The portion 13 has a plurality of parallel openings or slots 14 and forms a screen 15 for the illumination unit 5. The screen 15, when the flap 11 is in its folded-up position (Figure 2), lies directly in front of the illumination unit 5 and acts to screen the light so that only narrow downwardly directed beams are emitted which do not dazzle the passenger. The illumination unit 10 comprises a lamp holder (not shown in more detail here) with one or more tube lamps 16, a reflector 17 and a transparent cover 18 with an arcuate cross-section. The panel portion 13 is provided in the area of the slots 14 with a channel 19 adapted to the shape of the cover 18 so that the panel 11 can be folded-up so far that its downwardly (Figure 2) facing surface 20 is flush with or at least essentially flush with the downwardly facing surface of the frame portion 8. At their rear edges, the frame 8 and the panel 11 are provided with recesses 21 and 22, respectively, providing a finger grip to facilitate flipping down of the mirror unit. When the mirror unit 5 is in its folded-up position, a spring 23 biased ball 24 lies in a socket-shaped recess 25 in the panel 11, thus keeping it in the folded-up position. As can be seen in Figure 2, the mirror and illumination unit is placed so close to the sun visor that when the sun visor is in its folded-up position, it covers most of the unit only revealing the illumination portion. The screen portion with slots 14 described above can of course have a different design. For example, the individual slots can be replaced by a larger opening with a screen which refracts the light in the desired manner. Furthermore, a lens mounted in the portion 13 can be used to focus the light and provide a concentrated beam of light for map reading, for example. In the following patent claims, the term "shade or screen means" is intended to encompass the shade or screen means described in combination with the lens arrangement.

Claims: Mirror and illumination unit for motor vehicles, comprising firstly a hinged mirror unit (9), which can be swung between a folded-out position, in which its mirror surface (12) is exposed for use, and a folded-up position, in which its mirror surface is hidden behind the side (20) of the unit opposite the mirror surface, and secondly an illumination unit (10), which is disposed adjacent to the mirror to direct light towards a user, characterized in that the mirror unit (9) has shade or screen means (15) adapted to the lighting (10) in the illumination unit and is hinged in relation to the illumination unit so that the shade or screen means, when the mirror unit is in its folded-up position, cover at least a portion of the illumination unit to provide a certain dispersion of light from the illumination unit and, when the mirror unit is folded-out, are moved relative to the illumination unit to change the dispersion of light. Mirror and illumination unit according to Claim 1, characterized in that the mirror unit (9) is hinged at one side beside a recess (7) in the vehicle which is adapted to the shape of the unit, into which recess the unit can be folded to conceal the mirror surface, and in that the illumination unit (10) and the shade or screen means (15) are disposed at or in the vicinity of a side of the recess or mirror unit opposite to said hinge. Mirror and illumination unit according to Claim 2, characterized in that the mirror unit (9) comprises a rectangular panel (11) and a mirror (12) fixed to the panel, and in that the panel is hinged at one edge to one edge of a rectangular recess (7) in a carrier (6) designed to be fixed in a vehicle ceiling panel (1). Mirror and illumination unit according to Claim 3, characterized in that the illumination unit (10) is housed in the recess (7) and that the panel (1) is hinged so that in its folded-up position, its side (20) opposite the mirror lies essentially coplanar with the edge (8) of the recess. Mirror and illumination unit according to Claim 4, characterized in that the side of the shade or screen means (15) facing away from the illumination unit (10), when the panel (11) is in its folded-up position, lies essentially coplanar with the edge (8) of the recess. Mirror and illumination unit according to one of Claims 1-5, characterized in that the shade or screen means (15) is disposed, when the mirror unit (9) is swung from its folded-out to its folded-in position, to at least limit the dispersion of light backwards as seen in the longitudinal direction of the vehicle. Mirror and illumination unit according to one of claims 3-6, characterized in that the carrier (6) is adapted to be mounted in the forward ceiling portion of the vehicle, so that the mirror unit (9), when in its horizontal position, is hidden, with the exception of the shade or screen device (15), behind a sun visor (4) folded up against the ceiling.

Inventors: ELFVERSSON SVEN, HERMANSSON BENGT, ELFVERSSON, SVEN, HERMANSSON, BENGT
Applicants: HAPPICH SARL, HAPPICH S.A.R.L.
Application year: 1991
Main classification: B60Q3
IPC codes: G02B5, B60R11, F21V11, B60Q3