BACKGROUD OF THE INVENTION
The present invention relates to a sun visor for automotive vehicles, which sun visor has a mirror in the body of the sun visor, and particularly a mirror seated in a light-transmitting frame which is back-lit by a light.
The cover flap protion of the covering over a mirror in a sun visor may have a frame of its own. This covering frame is connected by a clip with the body of the sun visor or else with the light-transmitting frame of the mirror. As this construction is relatively simple and does not cause difficulties, such a mirror covering can be found today in most cars, particularly higher-price and medium-price cars.
Difficulties are presented by an illiminated sun visor mirror that is surrounded by a luminous frame. The luminous frame is preferable not covered over or is at most only minimally covered. Otherwise, the illumination is too greatly reduced. Furthermore, the attachment of the luminous frame must be simple from a manufacturing standpoint and must be reliable and permanent.
The covering frame nearly always is comprised of an elastic thermoplastic material and preferably has a single-piece development, using the same material. To connect the cover flap of the covering with the covering frame by means of a film hinge that frame must consist of elastic material. Connecting the cover with the light-transmitting frame, which is of hard material and which has optical qualities results in particular problems.
Summary of the Invention
The object of the invention is to provide a covering for a sun visor mirror that has a luminous frame which covering protects the mirror and the luminous frame against accidents, particularly in the case of fragmenting silicate mirrors.
According to the invention, a covering is provided which grips over the light-transmitting frame. The covering includes a covering frame that includes a cover flap, which is connected to the covering frame by a hinge. The covering generally protects both the mirror and the light-transmitting frame. Reliable protection against accidents is obtained.
The covering is preferably held to the light-transmitting frame in the sun visor body by a clip connection. This is a simple and sufficiently reliable attachment. By the use of such attachment, adhesive material and the corresponding process steps are saved.
The light yield is only insignificantly reduced if the part of the clip connection on the light-transmitting frame is an outer circumscribing surface and the part of the clip connection on the covering is an inner surface. By this development the covered surface of the light-transmitting frame can be made extremely small since the outer circumscribing frame of the covering can be kept narrow since it has great additional stability due to its overlapping around the statically firm light-transmitting frame.
It is even possible to retain the entire light yield if the frame of the covering is also made of light-transmitting material and has a light-impervious cover flap. In this way, the surface of the light-transmitting frame is not covered by light-impervious material so that the full illumination is retained. Illumination may even be enhanced if the light-transmitting covering frame of the cover flap has optical qualities. If the entire covering is comprised of light-transmitting material and with the cover flap being made light-impervious by an applied coating, there is substantial simplification in construction, particularly since the covering frame and the cover flap can be made of one piece and be of the same material.
The one-piece, same-material construction of the covering can be obtained particularly simply if the hinge is a film hinge having tabs which are integrated with the covering frame and the cover flap.
It is also advantageous if the cover flap of the covering can be held in place, and particularly at its position covering the mirror, by a disengageable detent. It is possible to arrange the hinge of the covering at the bottom of the covering frame, whereby a separate hold-open device for the cover flap is not needed. The flap remains in the open position due to its own weight. In this connection, a spring bolt or a clip molding can be associated with the cover flap to serve as the simple and dependably operating detent.
Futhermore, the switch for actuating the source of light is arranged with its switch button or switch slide in the region of the cover flap. The off-position of the switch is secured as the switch button or switch slide rests against the inside of the cover flap in the closed position of the flap.
One embodiment of the invention is shown by way of example in the accompanying drawing, which is a verticle sectional view through a sun visor according to the invention.
Description of a Preferred Embodiment
A sun visor according to the invention includes a visor body 1, which has a large, chamber-shaped recess 2 defined in it. The recess opens toward one of the wide surfaces of the body. A box 3 of rectangular shape in elevation and also having a rectangular cross-section is arranged in the recess. The box 3 is preferably affixed in position upon the manufacture of the sun visor body 1 by foamed plastic material. The box 3 holds the frame 4 in the box by clips, for instance, not shown. The frame 4 is of rectangular shape, viewed in elevation. Its peripheral margin has a T-shaped profile. The arm 15 of the margin of the frame is adapted to receive a mirror 5 in reliable manner and to retain the mirror in place by means of its inner corner. The sun visor body 1 is provided in the region of the resting surface 16 of the frame with a recess so that the frame 4 is of counter-sunk arrangement and the arm 17 of the margin of the frame terminates practically flush with the outside of the sun visor body 1. The frame 4 is a luminous frame. It is comprised of glass-clear or milky colored plastic, and particularly of polyacrylic resin or polycarbonate.
The outer circumscribing edge 6 of the arm 17 of the frame 4 is continously beveled off inwardly of the visor body. The edge 6 defines a surface for a clip connection for the covering 7 and particularly the covering frame 8 of the covering 7. The frame 8 includes the clip surface 9, which is adapted to the edge 6.
The covering 7 includes the covering frame 8 and the cover flap 10. These parts are connected by a film hinge 11. They are all a single integral piece of the same material. The cover flap 10 is therefore a wing-like flap, with a downwardly directed open position (shown in broken lines). In this way, no special holding device is necessary for maintaining the open position of the cover flap 10. The cover flap can be secured in the closed position in various ways. A spring-bolt detent is advisable. (It is not shown as it is so well known.)
In the box 3, behind the mirror 5, a conventional battery operated light source 18 is positioned. It is connected to a conventional power source, either in the visor body or externally thereof. See, e.g. U.S. Pat. No. 4,203,149. Light source 18 back lights the mirror 5.
For actuating the switch contact for the light source 18, there is a push-button switch 12 which is moved to its disconnect position when the cover flap 10 is closed, and which moves into a position in which it closes the electric contacts to the light source when the cover flap 10 is open.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof and, accordingly, reference should be made to the appended claims, rather than to the foregoing specification, as indicating the scope of the invention.