DE1274003B - Backrest with adjustable back support for vehicle seats - Google Patents

Backrest with adjustable back support for vehicle seats

Info

Publication number
DE1274003B
DE1274003B DEV21312A DEV0021312A DE1274003B DE 1274003 B DE1274003 B DE 1274003B DE V21312 A DEV21312 A DE V21312A DE V0021312 A DEV0021312 A DE V0021312A DE 1274003 B DE1274003 B DE 1274003B
Authority
DE
Germany
Prior art keywords
backrest
support springs
guides
support
sleeves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEV21312A
Other languages
German (de)
Inventor
Kurt Schwenk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Priority to DEV21312A priority Critical patent/DE1274003B/en
Publication of DE1274003B publication Critical patent/DE1274003B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/64—Back-rests or cushions
    • B60N2/66—Lumbar supports
    • B60N2/667—Lumbar supports having flexible support member bowed by applied forces

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Description

Rückenlehne mit regelbarer Rückenunterstützung für Kraftfahrzeugsitze Die Erfindung betrifft eine Rückenlehne mit regelbarer Rückenunterstützung für Kraftfahrzeugsitze mit einer Polsterfederung und einer oder mehreren waagerecht verlaufenden, in Richtung zur Rückenlehnenoberfläche hin eine Vorwölbung aufweisenden Stützfedern, deren Vorwölbung durch eine gleichzeitig an beiden Enden der Stützfedern wirkende Stelleinrichtung von außen veränderbar ist, bei der die Stützfedern in Halterungen abgestützt und mittels schlittenartiger, mit gegenläufigen Gewinden versehener, auf einer Gewindespindel laufender Muffen verschiebbar sind.Backrest with adjustable back support for motor vehicle seats The invention relates to a backrest with adjustable back support for motor vehicle seats with an upholstery suspension and one or more horizontally running in the direction to the backrest surface a protrusion having support springs, their protrusion by an adjusting device acting simultaneously at both ends of the support springs can be changed from the outside, in which the support springs are supported in brackets and by means of slide-like, counter-rotating threads on a threaded spindle running sleeves are displaceable.

Eine Rückenlehne dieser Art ist bereits Gegenstand eines älteren nicht vorveröffentlichten Patents. Hierbei sind die Enden der Stützfedern unmittelbar an den Muffen angelenkt, so daß sich die Stützfedern beim Verschieben derselben ellipsenförmig biegen. Diese Anordnung erfordert jedoch auf Grund dieser ellipsenförmigen Krümmung der Stützfedern eine große Tiefe der Rückenlehne.A backrest of this type is already the subject of an older one pre-published patent. Here, the ends of the support springs are direct hinged to the sleeves, so that the support springs when moving the same Bend elliptically. However, this arrangement requires due to this elliptical Curvature of the support springs a great depth of the backrest.

Der Erfindung liegt die Aufgabe zugrunde, eine Rückenstütze der eingangs genannten Art zu schaffen, die hinsichtlich der Tiefe der Rückenlehne nur einen geringen Platzbedarf aufweist.The invention is based on the object of providing a back support of the initially mentioned called type to create only one in terms of the depth of the backrest has a small footprint.

Die Erfindung ist demgemäß darin zu sehen, daß an den Muffen Ösen angelenkt sind, die in Führungen von am Gestell der Rückenlehne befestigten Lagerböcken eingreifen und mit den in den Führungen verschiebbar gelagerten Enden der Stützfedern zusammenwirken.The invention is accordingly to be seen in the fact that eyelets on the sleeves are articulated, the in guides of fastened to the frame of the backrest bearing blocks engage and with the ends of the support springs that are slidably mounted in the guides cooperate.

Die Erfindung wird im folgenden an Hand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigt F i g. 1 den erfindungsgemäß gestalteten Kraftfahrzeugsitz in Seitenansicht, F i g. 2 den Schnitt nach der Linie I-1 in F i g. 1 und F i g. 3 den Ausschnitt A gemäß F i g. 2.The invention is illustrated below with reference to one in the drawings Embodiment explained in more detail. It shows F i g. 1 designed according to the invention Motor vehicle seat in side view, F i g. 2 shows the section along line I-1 in F. i g. 1 and F i g. 3 shows section A according to FIG. 2.

Der erfindungsgemäß aufgebaute Kraftfahrzeugsitz weist ein Sitzpolster 1 auf, an dem mittels Armen 2 eine Rückenlehne 3 angelenkt ist. Die Rückenlehne 3 weist einen gewölbten Polsterbelag 4 auf, hinter dem entsprechend seiner Wölbung in bekannter Weise Federn angeordnet sind. In der Rückenlehne 3 ist eine gegen die Wölbung der Lehne durchgebogene Stützfeder 5, die als Flachfeder, Federstab oder Schlangenfeder ausgebildet ist, angeordnet, deren beide Enden in Führungen 6 verschiebbar gelagert sind. Die Führungen 6 sind an Lagerböcken 7 angeordnet, die am Gestell 9 der Rückenlehne befestigt sind und Lager für eine horizontal und quer durch die Rückenlehne gehende Gewindespindel 8 bilden. Die Gewindespindel 8 ist auf der einen Seite durch das Gestell 9 hindurchgeführt und trägt an diesem Ende einen Drehknopf 10. Auf den innerhalb der Lagerböcke 7 verlaufenden Teilen der Gewindespindel 8 sind Gewindeteile 11 befestigt, auf denen gegenläufige Gewinde aufweisende Muffen 12 angeordnet sind. An den Muffen 12 sind Ösen 13 angelenkt, deren freie Enden in die Führungen 6 eingreifen und gegen die Enden der Stützfeder 5 drükken. Die Gewindeteile 11 sind mit der Gewindespindel 8 ebenso wie der Drehknopf 10 mit der Gewindespindel 8 durch Stifte 14 bzw. 14' fest verbunden.The motor vehicle seat constructed according to the invention has a seat cushion 1 to which a backrest 3 is articulated by means of arms 2. The backrest 3 has a curved upholstery covering 4, behind which springs are arranged in a known manner in accordance with its curvature. Arranged in the backrest 3 is a support spring 5 which is bent against the curvature of the backrest and is designed as a flat spring, spring bar or serpentine spring, both ends of which are slidably mounted in guides 6. The guides 6 are arranged on bearing blocks 7 which are fastened to the frame 9 of the backrest and form bearings for a threaded spindle 8 which extends horizontally and transversely through the backrest. The threaded spindle 8 is passed through the frame 9 on one side and carries a rotary knob 10 at this end. On the parts of the threaded spindle 8 extending within the bearing blocks 7, threaded parts 11 are fastened, on which oppositely threaded sleeves 12 are arranged. Eyelets 13 are hinged to the sleeves 12, the free ends of which engage in the guides 6 and press against the ends of the support spring 5. The threaded parts 11 are firmly connected to the threaded spindle 8, as is the rotary knob 10, to the threaded spindle 8 by pins 14 and 14 ', respectively.

Beim Drehen des Drehknopfes 10 werden somit die beiden Muffen 12 gegenläufig bewegt, wodurch die Ösen 13 die Enden der Stützfeder 5 innerhalb der Führungen 6 verschieben.When the rotary knob 10 is turned , the two sleeves 12 are thus moved in opposite directions, as a result of which the eyelets 13 move the ends of the support spring 5 within the guides 6.

Claims (1)

Patentanspruch: Rückenlehne mit regelbarer Rückenunterstützung für Kraftfahrzeugsitze mit einer Polsterfederung und einer oder mehreren waagerecht verlaufenden, in Richtung zur Rückenlehnenoberfläche hin eine Vorwölbung aufweisenden Stützfedern, deren Vorwölbung durch eine gleichzeitig an beiden Enden der Stützfedern wirkende Stelleinrichtung von außen veränderbar ist, bei der die Stützfedern in Halterungen abgestützt und mittels schlittenartiger, mit gegenläufigen Gewinden versehener, auf einer Gewindespindel laufender Muffen verschiebbar sind, d a d u r c h gekennzeichnet, daß an den Muffen (12) Ösen (13) angelenkt sind, die in Führungen (6) von am Gestell (9) der Rückenlehne befestigten Lagerböcken (7) eingreifen und mit den in den Führungen verschiebbar gelagerten Enden der Stützfedern (5) zusammenwirken. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 887 745; deutsches Gebrauchsmuster Nr. 1786 316; britische Patentschrift Nr. 360 516; Zeitschrift »Kraftfahrzeugtechnik«, 1960, H.1, S. 20. In Betracht gezogene ältere Patente: Deutsches Patent Nr. 1249102.Claim: backrest with adjustable back support for Motor vehicle seats with an upholstered suspension and one or more horizontally extending in the direction of the backrest surface having a bulge Support springs whose protrusion is caused by a simultaneous at both ends of the support springs acting adjusting device can be changed from the outside, in which the support springs in Brackets supported and by means of slide-like, with opposing threads provided sleeves running on a threaded spindle are displaceable, d a d u r c h characterized in that eyelets (13) are hinged to the sleeves (12), which are in guides (6) engage on the frame (9) of the backrest fastened bearing blocks (7) and with those in the Guides displaceably mounted ends of the support springs (5) cooperate. Publications considered: German patent specification No. 887,745; German utility model No. 1786 316; British Patent No. 360 516; Journal "Motor Vehicle Technology", 1960, H.1, p. 20. Considered older patents: German Patent No. 1249102.
DEV21312A 1961-09-15 1961-09-15 Backrest with adjustable back support for vehicle seats Pending DE1274003B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV21312A DE1274003B (en) 1961-09-15 1961-09-15 Backrest with adjustable back support for vehicle seats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV21312A DE1274003B (en) 1961-09-15 1961-09-15 Backrest with adjustable back support for vehicle seats

Publications (1)

Publication Number Publication Date
DE1274003B true DE1274003B (en) 1968-07-25

Family

ID=7579093

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV21312A Pending DE1274003B (en) 1961-09-15 1961-09-15 Backrest with adjustable back support for vehicle seats

Country Status (1)

Country Link
DE (1) DE1274003B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926552A1 (en) * 1979-06-30 1981-01-22 Daimler Benz Ag CHANGEABLE BACK SUPPORT FOR A BACKREST OF A MOTOR VEHICLE SEAT
FR2562002A1 (en) * 1984-03-27 1985-10-04 Peugeot Cycles DEVICE FOR LOCALLY ADJUSTING THE TENSION OF AN ELASTIC SHEET AND ELASTIC SHEET, PARTICULARLY FOR A SEAT BACKREST, PROVIDED WITH SUCH A DEVICE
US4627661A (en) * 1983-01-27 1986-12-09 Be - Ge Stolindustri Ab Chair back with adjustable lumbar support
FR2596262A1 (en) * 1986-03-31 1987-10-02 Aisin Seiki LUMBAR SUPPORT FOR THE BACK OF A SEAT
WO1992017096A1 (en) * 1991-03-26 1992-10-15 Henderson's Industries Pty. Ltd. Lumbar support adjustment device
US5507559A (en) * 1991-09-24 1996-04-16 Hendersons Industries Pty. Ltd. Adjustable and releasably connectable lumbar support assembly
US5553919A (en) * 1994-10-11 1996-09-10 Excellence Lumbar Corporation Scissor jack lumbar support
US5762397A (en) * 1997-03-24 1998-06-09 Venuto; Dennis Wire attachment to a seat frame
US5860700A (en) * 1991-03-26 1999-01-19 Henderson's Industries Pty. Ltd. Lumbar support adjustment device
US5954399A (en) * 1998-07-15 1999-09-21 Hong; Jung-Myung Lumbar support for a car seat

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB360516A (en) * 1930-08-15 1931-11-12 Weymann S Motor Bodies 1925 Lt Improvements in or relating to seats
DE887745C (en) * 1950-11-21 1953-08-27 No Sag Spring Company Upholstery suspension, in particular for motor vehicle seats
DE1786316A1 (en) * 1968-09-16 1972-02-24 Machines Speciales S A Soc Et Rotary tool for cutting and / or notching sheet or sheet material and process for its manufacture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB360516A (en) * 1930-08-15 1931-11-12 Weymann S Motor Bodies 1925 Lt Improvements in or relating to seats
DE887745C (en) * 1950-11-21 1953-08-27 No Sag Spring Company Upholstery suspension, in particular for motor vehicle seats
DE1786316A1 (en) * 1968-09-16 1972-02-24 Machines Speciales S A Soc Et Rotary tool for cutting and / or notching sheet or sheet material and process for its manufacture

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926552A1 (en) * 1979-06-30 1981-01-22 Daimler Benz Ag CHANGEABLE BACK SUPPORT FOR A BACKREST OF A MOTOR VEHICLE SEAT
US4627661A (en) * 1983-01-27 1986-12-09 Be - Ge Stolindustri Ab Chair back with adjustable lumbar support
FR2562002A1 (en) * 1984-03-27 1985-10-04 Peugeot Cycles DEVICE FOR LOCALLY ADJUSTING THE TENSION OF AN ELASTIC SHEET AND ELASTIC SHEET, PARTICULARLY FOR A SEAT BACKREST, PROVIDED WITH SUCH A DEVICE
EP0158562A1 (en) * 1984-03-27 1985-10-16 CYCLES PEUGEOT Société dite: Apparatus for adjusting local tension of a spring bed, particularly for vehicle seats
US4588172A (en) * 1984-03-27 1986-05-13 Cycles Peugeot Device for locally adjusting the tension of an elastic sheet, in particular for a vehicle seat
FR2596262A1 (en) * 1986-03-31 1987-10-02 Aisin Seiki LUMBAR SUPPORT FOR THE BACK OF A SEAT
WO1992017096A1 (en) * 1991-03-26 1992-10-15 Henderson's Industries Pty. Ltd. Lumbar support adjustment device
US5860700A (en) * 1991-03-26 1999-01-19 Henderson's Industries Pty. Ltd. Lumbar support adjustment device
US5507559A (en) * 1991-09-24 1996-04-16 Hendersons Industries Pty. Ltd. Adjustable and releasably connectable lumbar support assembly
US5553919A (en) * 1994-10-11 1996-09-10 Excellence Lumbar Corporation Scissor jack lumbar support
US5762397A (en) * 1997-03-24 1998-06-09 Venuto; Dennis Wire attachment to a seat frame
US5954399A (en) * 1998-07-15 1999-09-21 Hong; Jung-Myung Lumbar support for a car seat

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