DE2102917A1 - Motorcar sun visor - made of polyurethane foam with integral rear view mirror - Google Patents

Abstract

The sun visor consists of a plastics foam plate rotatable or swingable in the car compartment, the plate edge zone being formed by an unfoamed plastics of much higher density. For possible mirror mounting the plate is provided with a moulded recess. Semi-hard or soft polyurethane integral foam is used.

Description

Sun visor for vehicles To drive against the low sun or other glare sources to facilitate are behind the windshield of vehicles, in particular of road vehicles, flaps attached to the frame are pivotally mounted above the windshield and in the beam path from the sun, respectively. the light source can be brought to the driver's eye.

The known sun visors consist of one with a pivot axis connected rigid plate, often covered with fabric; Plastic or leather covered is. Especially when the sun visor is only partially folded down, its relatively narrow edge is right in front of the driver at head height. At a In an accident it can happen that his head is thrown against this edge and then sustains severe head injuries. To face such a danger you have recently a padding between the stiff plate and the cover, im In the simplest case, a foam insert is attached. The risk of injury becomes Although this is mitigated, it is particularly important in the event of an accident as a result of a strong frontal collision not satisfactorily eliminated.

The side facing the interior of the vehicle when folded down The sun visor is often used to attach an additional interior mirror used. This inside mirror is at about eye level and has, as it is relatively close in front of the viewer's Auyen and easily with the sun visor can be swiveled up or down, as well as left or right, from dt3r From a visual point of view, an ideal location. This is the reason why on that The sun visor-framed interior mirror is not exactly dispensed with, although it is Another significant source of risk for injuries in the case of on-site workers.

The present invention is based on the object of a sun visor to design for vehicles so that they can with little manufacturing effort the aforementioned Purposes fulfilled completely satisfactorily and yet not a source of danger for injuries of occupants in accidents.

The object is achieved according to the invention in that as a plate for the sun visor is a flat part (1) made of tough elastic, in a corresponding Form foamed plastic is provided, the edge zone (2) of a substantially there is a denser and largely unfoamed layer of this plastic.

In the embodiment, the sun visor according to the invention, the one Provides interior mirror, is provided to solve the problem that a mirror glass blank (3) is foamed into part (1) in such a way that its front side C 5 ) is largely visible through a cutout (6) in the edge zone (2).

Although practical for the production of the sun visor according to the invention all foamable tough elastic plastics respectively. whose preliminary products are suitable, Integral foams, in particular, semi-hard and soft polyurethane integral foams are used for this purpose preferred.

The latter offer the advantage that they start from liquid preliminary products, do not require significant heat transfer, thus high production speed when foaming enable and can be processed into forms that are very simple Way can be produced by casting a corresponding positive pattern.

A preferred embodiment of the invention will be illustrated with reference to the accompanying drawings Drawing explained in more detail.

The figures show: FIG. 1 a sun visor that has been folded down according to FIG Claim 1 Figure 2 shows a cross section through the Sunnenblerlcie shown in Figure 1 along the line A-A.

FIG. 3 shows an analogous office section through a sun visor without an interior mirror.

Part 1 is known precursors for foamable by foaming tough elastic plastics, preferably a reactive mixture of polyols and isocyanate compounds obtained in a corresponding form. The stiffness of this Part 1 is determined not only by the choice of appropriate plastics, but also by the degree the foaming, respectively. by the density of the plastic foam and by the Thickness of the part 1, but in particular determined by the thickness of the edge zones 2. The strength of the edge zone 2, in turn, can be determined by the temperature. Heat dissipation largely regulate the shape.

So you can the stiffness, respectively. Choose flexibility of part 1 so that this on the one hand satisfies the purpose of use, but on the other hand so much elasticity is given that a vehicle occupant bumping against it also in the event of a violent impact and if it is thrown against the edge of the bezel should no longer be injured.

The axis that can be rotated or rotated and swiveled on the vehicle 7 is, in the area that extends into the diaphragm, preferably flattened or notched several times. Before foaming, it is inserted in the appropriate place in the Form introduced and thus experienced in a simple way a sufficiently firm and yet elastic fastening in part 1.

The same applies to the mirror glass blank 3, because of its generally good edition in part 1 compared to the mirror glass blank in the known Sun visors can be kept much weaker. Except that achieved with it Material savings and weight reduction also offer the advantage that the Mirror glass cut is more elastic and only with significantly higher loads breaks. It is also due to the inventive type of its attachment firmly adhered to the plastic foam on its rear side 4. This will achieved that in an accident and a possible breakage of the mirror its fragments are kept in their original shape and the sharp edges of the fragments can no longer emerge. This also eliminates the risk of occupants cut injuries from the inside mirror in the event of an accident.

The recess 6 can be made by appropriate design of the shape Achieve easily and cleanly with practically no additional effort.

The mirror glass blank 3 is pneumatic during the foaming process kept in the form and thus practically does not require any additional manufacturing effort compared to a sun visor without a mirror.

The advantages associated with the invention are particularly therein to see that sun visors, even those with an interior mirror attached, without a stiff insert and thus much more elastic and flexible than before can. It can be done in this way, according to contemporary requirements Sun visors of the known type inevitably given risk of injury for occupants largely exclude in the event of accidents.

The sun visor according to the invention is also available with the same or

improved utility value easier than those of the known Art. Furthermore, their production takes place practically in just one operation, so that In addition to the technical advantages mentioned, they also have the advantage of a cheaper one and simpler manufacture.

The foaming process in the mold is also used for the design There are practically no limits to the surface structure of the sun visor. It textile imitations can be achieved just as easily and deceptively real as, for example those made of leather, wood or the like.

Claims (3)

Claims inner cover for vehicles, possibly with attached interior mirror, from a plate, which is held with a rotatable, or rotatable and pivotable on the vehicle Axis is connected, characterized in that a flat part (1 ) made of viscoplastic plastic foamed in a suitable shape is, whose edge zone t 2) consists of a much denser, largely unfoamed Layer of this plastic is made. 2. Sun visor according to claim 1, characterized in that a Mirror glass blank (3) in the part C 1) is foamed in such a way that its Front (5) through a recess (6) in the edge zone [2) for the most part is visible. 3. Sun visor according to claim 1 or 2, characterized in that that as a viscoplastic foamed plastic an integral is preferably a semi-hard one or soft polyurethane integral foam is provided. L e r s e i t e