DE6605170U - AIR SUSPENSION FOR VEHICLE SEATS. - Google Patents

Description

PATENT LAWYERS.:., '.. ·.:. : · .. · Dr. D. Thomsen H. Tiedtke G. Bühling Dlpl.-Chem. Dipl.-Ing. Dipl.-Chem. *. ",

8000 MONKS 2

VAL 33

TELEPHONE 0811/226894 ■

TELEGRAM ADDRESS: THOPATENT

Munich January 19, 1970 Utility model registration. · P 33 579 / 63C Obm T 2480

Georg Pritzmeier KG. Großhelfendorf / via Munich

Air suspension for motor vehicle seats

The invention relates to an air suspension for 'motor vehicle side; "with the Sit2 for straight lines up— * · and downward movement and guided by an air tank with in-dependency compressible from the seat load. Air volume is resiliently supported, which is supplied with air by an air source with the interposition of a valve is caring. . ... "

The object of the invention is, compared to the previously usual air suspension of this type, the one for charging the air tank necessary compressed air taking advantage of the uneven ground on the vehicle between two relative to each other

Oral agreements. In particular, by telephone, require written confirmation Dresdner Bank Munich Account 108103 · Postal checking account Munich 116974

movable parts to procure vibrations generated.

The object is achieved in that as an air source one by two due to uneven ground relative to each other

j · movable parts actuated air pump is provided to the. "

■ I · a compressed air supply chamber connected upstream of the air reservoir connected.

With these measures, the storage chamber is always automatically inflated or refilled when the vehicle is moving. so that there is always the necessary pressure for £: 5e in each case optimal suspension setting is available via a 'fine control valve can take place, which can be easily reached, for example, on the dashboard of the vehicle or on the side next to the seat

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The air pump can be actuated by the vibrations of the vehicle seat. It is also possible to operate one or more air pumps by means of swing arms provided on the chassis, for example transverse control arms of the wheel suspension. It is advantageous if a manually operated air pump and / or a possibility for connecting the storage chamber to an existing compressed air system of the vehicle or to an independent compressor is created so that in the F ₄ all "a pressure reduction in the storage chamber when the

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The vehicle generates the necessary pressure in the storage chamber at the start of the journey and thus the correct seat suspension. · can be adjusted.

To save space and to avoid a separate compressed air storage chamber, it is advantageous if the seat backrest, the seat support or both as a unit, the seat guide elements, the base or mounting plate or the like. Parts

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of the vehicle seat are designed as a compressed air storage chamber.

To increase the effectiveness of the air pump, it is advisable to make it double-acting.

The invention is illustrated below with the aid of schematic drawings explained in more detail using an exemplary embodiment. Show it:

_(/ ■ "■., .Fig · 1 a üchaitschema of the inventiveiaea ; · -"., ■ ". '. And. * *" ·

. FIG. 2 shows the air suspension according to FIG. 1 in use

one seat ... · .. * -.

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Serves as a spring element for cushioning a driver's seat

for example in a suitable "manner between the driver's seat and driving.

pressure cylinder to be arranged or also membrane cylinder 1, * "whose air chambers. Via lines 2 with a stepless ver - Adjustable precision control valve 3 are connected. The fine control valve • is connected to a compressed air storage chamber 6 via a pressure regulator 5

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connected, which is fed via a line 7 by an air pump S, which for example between the driver's seat and

Vehicle or between the chassis and wishbones of the wheel suspension or arranged between other parts of the vehicle that are movable relative to one another as a result of uneven ground is. If the storage chamber is at the prescribed pressure, the air pump 8 works empty, for example by is blown off via the pressure regulator 5.

In the case of an existing compressed air system 9, the compressed air storage chamber 6 is connected to this via a line 10; instead, this compressed air system can also be used directly a line 11 can be connected to the fine control valve. In this way, after a pressure drop in chamber 6, as a result of the vehicle being stationary for a long period of time, an initial setting can be made, of the pressure cylinder 1, the air pump 8 for maintaining the pressure in the chamber after the start of the journey 6 cares. ~

If no compressed air system is provided on the vehicle, the compressed air storage chamber .6 with a filling valve 12 for connection to a third party supplier, e.g. a compressor.

In Fig. 2, the air suspension according to the invention is in use shown in a vehicle seat «The seat shell 13 of the · ·

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Sitting is on the Kückseiie by means of a holder 14 is one fixed guide rod 15 straight out and on the Underside attached to the front end of a guide rocker 16 steers, the other end of which is articulated with de "guide rod connected is. In the guide rod 15 is the air pump 8, ' whose cylinder is supported at the foot of the guide rod and whose piston rod 17 is connected to the holder 14 of the seat shell 13 est. When the seat shell 13 moves up and down, the air pump 8 pumps air into the air under the seat, at the same time the Compressed air storage chamber that forms the seat base plate and carries the guide rod 6j from there the air is drawn over the Precision control valve mounted on the front of the seat for compressed air storage chamber 3 passed into the air tank 1, which is located under the Seat shell is located between this and the storage chamber 6 and causes the actual cushioning. The pantry is included expediently designed in the form of a flat hollow box, in the interior of which the necessary lines are housed.

Claims (9)

\ IB ·· JJUb- 1) air suspension for motor vehicle seats, where the seat for straight up and down movement and guided by a · Air container with compressible depending on the seat load Volume of air is resiliently supported, which is supplied by an air source with the interposition of a Yen- ' tils can be supplied with air, characterized in that the air source (8) is a Parts provided on the vehicle is actuated air pump to which a compressed air supply chamber connected upstream of the air tank (1) (6) is connected. 2) Air suspension according to claim 1, characterized in that the air pump (8) by the vibrations of the driver's side is actuatable. · · 3) Air suspension according to claim 1, characterized in that the air pump (8) by the oscillating movements of the driving. frame provided swing arms can be actuated. 4) Air suspension according to claim 1 to 3, characterized in that that the air pump (8) can also be operated by hand. '■' "" 8 * 9 * O -7 - 5) Air suspension according to claim 1 to 4 »characterized in that the seat backrest and / or the seat support, the seat guide elements, the Gruad bsw. Mounting plate or the like. Parts of the vehicle seat as BruckluftvorratekasBer are trained. 6) Air suspension according to claim 1 to 5 »characterized by - shows that the compressed air supply vessel (6) at a pressure ·? · air system (9) of the vehicle or to «in tob vehicle independent Druokluftsystem can be connected. 7) Air suspension according to claim t to 6, characterized in that that between the compressed air supply chamber (6) and the air tank (1) a "preferably continuously adjustable precision control valve (3) is turned on. 8) Air suspension according to claim 1 to 7, characterized in that the air pump (8) is double-acting. 9) Air suspension according to claim 1 to 7 for a Sit ^, the on the back in an O-shaped cross-section on one Baseplate supported guide rod straight up and down and hinged to a puncturing rod on a lower side is that with its mderen end to the foot of the guide rod is articulated, characterized in that the air pump is within the guide rod arranged, the base plate as a C I 4 · · I «» ■ · I 'ι t t · ·. m * Λ 9 ψ 4 8th - flat hollow box forming the compressed air storage chamber is, with the air reservoir forming the suspension in the form of a pressure or membrane cylinder under the seat the top of the base plate is arranged. . I.