DE2053038A1 - - Google Patents

Description

[> -lng. hey F PORSCHE KG 7 STUTTGART-ZUFFENHAUSEN PORSCHESTRASSE 42

P 45

Loudspeaker arrangement in vehicles.

The invention relates to a loudspeaker arrangement in Pahr-r testify, especially in motor vehicles.

The purpose of such loudspeaker arrangements is acoustic Providing information, musical performances and the like to one or more occupants of the motor vehicle. This information etc. can thereby directly, for example on the radio path by radio or overland radio (telephone) to the Get occupants of the motor vehicle. In addition, indirect transmission, e.g. by means of records or tapes, is known. Loudspeaker systems are also used in larger passenger vehicles, such as buses, to that a person, e.g. a tour guide, gives explanations to a larger number of inmates via a microphone.

Loudspeaker arrangements in motor vehicles are inherently in known in many forms. So an arrangement in buses has become known (German utility model 6 937 68l), the consists of installing three loudspeakers in a row on the ceiling of the bus at the same height. Through this attachment the loudspeaker above the window or in the central aisle of the bus, part of the interior space is narrowed. In buses, the interior in this area is often used as a luggage rack the luggage rack can be dispensed with. In addition, there is a risk that pieces of luggage in this area will interfere with the sound of the loudspeakers affect unfavorably.

209819/0290

'llffONi 0203111 IElEX 0/2 / 187I PORSCHE CAR STUTTGART —2—

The invention is based on the object of creating a loudspeaker arrangement in vehicles that does not have a special Requires space and achieves a good sound effect.

This object is achieved according to the invention in that in a sun visor designed as a flat upholstered body and pivotably attached to the body within the passenger compartment a flat type loudspeaker is arranged. The sun visor is particularly designed in such a way that the sound emerges from the loudspeaker through openings on both sides the sun visor is done »It is advantageous if the loudspeaker is embedded in foamed plastic and made of elastic Connecting links are connected to a frame of the cushion body & which perforates one in the area of the loudspeaker trained wearing a cover. They are particularly twofold Connecting links designed as springs or bands made of metal, plastic or rubber. It is of particular advantage if in at least two sun visors assigned to the front occupants of the motor vehicle each at least one Loudspeaker is arranged so that a stereophonic sound effect is cloudy. In a further embodiment of the invention, at least two, the rear occupants of the Sun visors associated with the motor vehicle and arranged in the area of a rare or rear window, at least one in each case Loudspeakers arranged in such a way that a stereophonic ^ Gives a sound effect.

The advantages achieved by the invention are in particular that a loudspeaker arrangement is created, (Ue utilizes the space available in the vehicle and allows extensive adjustment of the radiation direction In a spatially confined vehicle, for example a 3portfahrseug, a stereo-compatible loudspeaker arrangement can be created in a simple manner. For this purpose only Parts of the passenger area used that are already in use. An additional narrowing of the space, for example of storage areas, is avoided.

209819/0290

- "5-BAD OBtGINAL

3 ^ 053038

An exemplary embodiment is shown in the drawing and is described in more detail below. 1 shows a front view of a loudspeaker arrangement stereophonic sound effect in the windscreen area

of a sports vehicle, partly i "! section ,, FIG. 2 shows a part through the sun visor according to FIG

Line II-II in Fig. 1,
Fig. J> a section along the line III-III in Fig. 1 with the sun visor in the position of use.

In a sports vehicle 1, in the area of the windshield on both sides of an interior rearview mirror 5, two are symmetrically folded the same sun visors 4, 4 'arranged. The following description is limited to one half of the symmetry of the on-order.

/ The sun visor 4 comprises a wire frame 5 * that of a molded body β made of semi-rigid foamed plastic of the class the polyurethane is surrounded, as well as a cover made of synthetic leather. The sun visor 4 is rotatable by means of pins 8, 9 in FIG Bearings 10, 11 attached to structure 12. The bearing 11 is U-shaped and allows the associated pin 9 upwards take out. The bearing 10 is spherical and allows after removal of the pin 9 from the bearing 11 a all-round adjustability of the sun visors 4 from the parallel position in front of the windshield 2 to approximately parallel to one Side window IJ. In the middle section of the sun visor 4 is embedded in the molded body 6, introduced a loudspeaker 14 of flat design. The loudspeaker 14 of known type is made essentially of a magnet 15, a voice coil 16> a membrane 17 and a frame 18. The frame is; made of a plastic of the class of polyamides and executed rectangular. Metal springs grip the corners 19 in holes 20 and form an elastic connection between the frame 18 of the loudspeaker 14 and the Wire frame 5 of the sun visor 4. The cover 7 is perforated on both sides of the sun visor 4 in the area of the loudspeaker 14 formed (Fig. 2). The connection of the loudspeaker 14 to the amplifier, not shown, is not shown because it is not essential to the invention. She can at -

209819/0230 -4-

-V P

for example via a customary one arranged in the area of the bearing 10 Plug connection made.

By arranging the loudspeakers 14, 14 'in two front sun visors 4, 4', a stereophonic sound effect is made possible. It is irrelevant whether the sun visors 4, 4 ^{f are} in the position of use or in the folded-up starting position (Pig. 3). S ₁ and S ₂ (FIG. 3) denote the sound power which the loudspeaker 14 emits in both directions of oscillation of the membrane 17. With S ₁ R or S ₂ R, the respective reflected sound component is named. The sum of the radiated power that the occupant can hear is almost the same. The use of the loudspeaker arrangement according to the invention is therefore equally possible in the folded-back initial position of the sun visor 4 or 4 'and in the folded-down or pivoted position of use.

209819 / Π290

Claims (1)

P 45 intellectual property rights (1.1 Loudspeaker arrangement in vehicles, especially in Motor vehicles, characterized in that in one as flat upholstered body, sun visor (4, 4 |) fastened to the structure (12) so as to be pivotable within the passenger compartment a loudspeaker (14, 14 ') of flat design is arranged. 2. Loudspeaker arrangement according to claim 1, characterized in that the sound outlet of the loudspeaker (14, l4 ^! ) Through openings on both sides of the sun visor (4, 4 ') " he follows", J>. Loudspeaker arrangement according to Claim 2, characterized in that the loudspeaker (14, 14 ') is embedded in foamed plastic and connected by means of elastic connecting members (19) to a frame (18) of the cushion body (6), the one in the area of the loudspeaker (14 , 14 ') carries a perforated cover (7). 4. Loudspeaker arrangement according to Claim 3, characterized in that the connecting members (19) are designed as springs or bands made of metal, plastic or rubber. Ä Loudspeaker arrangement according to claim 4, characterized in that at least one loudspeaker (14, 14 ') is arranged in at least two of the sun visors (4, 4, ¹ ) assigned to the front occupants of the motor vehicle (1) in such a way that a stereophonic sound effect is achieved results, 6. Loudspeaker arrangement according to claim 4 or 5 *, characterized in that in at least two, the rear occupants of the motor vehicle (1) assigned, in the area of a rear or side window (13) arranged sun visors (4, 4 ') each at least one loudspeaker ( 14, l4 ^f ) is arranged in such a way that a stereophonic sound effect results. 209819/0290 Le e r e i t e