DE19830922A1 - Automotive MacPherson struts incorporating a supplementary spring which provides self-adjustment of spring force in relation to the range of spring movement - Google Patents

Automotive MacPherson struts incorporating a supplementary spring which provides self-adjustment of spring force in relation to the range of spring movement

Info

Publication number
DE19830922A1
DE19830922A1 DE1998130922 DE19830922A DE19830922A1 DE 19830922 A1 DE19830922 A1 DE 19830922A1 DE 1998130922 DE1998130922 DE 1998130922 DE 19830922 A DE19830922 A DE 19830922A DE 19830922 A1 DE19830922 A1 DE 19830922A1
Authority
DE
Germany
Prior art keywords
spring
automotive
supplementary
force
relation
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.)
Withdrawn
Application number
DE1998130922
Other languages
German (de)
Inventor
Jens-Uwe Schreiber
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.)
SCHREIBER JENS UWE
Original Assignee
SCHREIBER JENS UWE
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 SCHREIBER JENS UWE filed Critical SCHREIBER JENS UWE
Priority to DE1998130922 priority Critical patent/DE19830922A1/en
Publication of DE19830922A1 publication Critical patent/DE19830922A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
    • B60G15/065—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper characterised by the use of a combination of springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/021—Spring characteristics, e.g. mechanical springs and mechanical adjusting means the mechanical spring being a coil spring

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

An automotive MacPherson strut unit has a spring rate which depends upon the position of the main spring. The unit consists of a housing (5), a main spring (2), a pretension spring (3), lower (4) and upper (6) spring plates, and a supplementary spring (1). The supplementary spring (1) is progressive, is positioned between the housing and upper spring plate, and adds to the action of the main spring.

Description

Es ist bekannt, daß bei höhenverstellbaren Fahrwerken für PKW die Federrate des Federbeines unabhängig von der eingestellten Vorspannung unverändert bleibt. Um die Federrate auf den verbleibenden Federweg abzustimmen, ist es erforderlich, die Hauptfeder auszutauschen. Dies ist mit einem hohen Montageaufwand verbunden. Der in den Patentansprüchen angegebenen Erfindung liegt die Möglichkeit zugrunde, die Federrate des Federbeines in Bezug auf die vorhandene Einstellung und den damit verbundenen Einfederweg ohne jeglichen Montageaufwand anzupassen.It is known that in the case of height-adjustable undercarriages for cars, the spring rate of the shock absorber remains unchanged regardless of the set preload. To the spring rate on the the remaining spring travel, it is necessary to replace the main spring. This is with a high installation effort. The invention specified in the claims lies Possibility based on the spring rate of the shock absorber in relation to the existing setting and the related deflection without adapt any assembly effort.

Diese Möglichkeit wird durch die in den Patentansprüchen aufgeführten Merkmale gegeben.This possibility is given by the features listed in the claims.

Die mit der Erfindung erzielten Vorteile bestehen darin, daß sich die Federrate des Federbeines immer dem Federweg anpaßt und somit eine einfache Bedienung und der Wegfall von Montagearbeiten erzielt wird.The advantages achieved with the invention are that the spring rate of the strut always adapts to the travel and thus achieves simple operation and the elimination of assembly work becomes.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and will be described in more detail below described.

Es zeigtIt shows

Fig. 1 Schnittschema eines Federbeines, mit der Besonderheit, daß zwischen oberen Federteller (6) und Federbeingehäuse (8) eine progessive Zusatzfeder installiert ist. Fig. 1 sectional diagram of a shock absorber, with the special feature that a progressive additional spring is installed between the upper spring plate ( 6 ) and shock absorber housing ( 8 ).

Bringt man den unteren Federteller auf ein hohes Niveau, steht viel Federweg zur Verfügung und die progressive Zusatzfeder (1) ist relativ entspannt, somit bringt sie eine geringe Federkraft auf. Diese Federkraft addiert sich auf die Federkraft der Hauptfeder (2).If you raise the lower spring plate to a high level, there is a lot of travel available and the progressive additional spring ( 1 ) is relatively relaxed, so it has a low spring force. This spring force is added to the spring force of the main spring ( 2 ).

Bringt man den unteren Federteller in eine tiefere Position, so verringert sich auch der verbleibende Federweg und die Federkraft der progressiven Zusatzfeder (I) erhöht sich. Diese Federkraft addiert sich wiederum zur Federkraft der Hauptfeder (2), so daß die Federkraft des Komplettfederbeines höher liegt als bei hoch eingestelltem Federteller. Ohne die Zusatzfeder (1) stünde immer eine gleichbleibende Federkraft zur Verfügung unabhängig davon, in welcher Lage sich der untere Federteller befindet.If the lower spring plate is brought into a lower position, the remaining spring travel is also reduced and the spring force of the progressive additional spring (I) is increased. This spring force is in turn added to the spring force of the main spring ( 2 ), so that the spring force of the complete spring strut is higher than when the spring plate is set high. Without the additional spring ( 1 ), a constant spring force would always be available, regardless of the position of the lower spring plate.

Der Vorteil dieser Konstruktion liegt darin, daß sich die Federkraft dem jeweils eingestellten Federweg anpaßt.The advantage of this construction is that the spring force is adjusted to the current one Adjusts travel.

Claims (5)

Höhenverstellbares Federbein mit veränderlicher Federrate in Abhängigkeit von der Lage der Hauptfeder in der Vertikalen, bestehend aus einem Federbeingehäuse (5), einer Hauptfeder (2), einer Vorspannfeder (3), einem unteren Federteller (4) und einem oberen Federteller (6) sowie einer Zusatzfeder (1), dadurch gekennzeichnet,Height-adjustable strut with variable spring rate depending on the position of the main spring in the vertical, consisting of a strut housing ( 5 ), a main spring ( 2 ), a preload spring ( 3 ), a lower spring plate ( 4 ) and an upper spring plate ( 6 ) and an additional spring ( 1 ), characterized in that - daß die Zusatzfeder (1) progressiv ist- That the additional spring ( 1 ) is progressive - daß die Zusatzfeder (1) zwischen Stoßdämpfergehäuse (5) und oberem Federteller (6) angebracht ist- That the additional spring ( 1 ) between the shock absorber housing ( 5 ) and the upper spring plate ( 6 ) is attached - daß sich die Federkraft der Zusatzfeder (1) zur Federkraft der Hauptfeder (2) addiert- That the spring force of the additional spring ( 1 ) is added to the spring force of the main spring ( 2 ) - daß die Federkraft des kompletten Federbeines in Abhängigkeit zum eingestellten Federweg selbsttätig angepaßt wird.- That the spring force of the complete shock absorber depending on the set travel is automatically adjusted.
DE1998130922 1998-07-13 1998-07-13 Automotive MacPherson struts incorporating a supplementary spring which provides self-adjustment of spring force in relation to the range of spring movement Withdrawn DE19830922A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998130922 DE19830922A1 (en) 1998-07-13 1998-07-13 Automotive MacPherson struts incorporating a supplementary spring which provides self-adjustment of spring force in relation to the range of spring movement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998130922 DE19830922A1 (en) 1998-07-13 1998-07-13 Automotive MacPherson struts incorporating a supplementary spring which provides self-adjustment of spring force in relation to the range of spring movement

Publications (1)

Publication Number Publication Date
DE19830922A1 true DE19830922A1 (en) 2000-01-20

Family

ID=7873604

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998130922 Withdrawn DE19830922A1 (en) 1998-07-13 1998-07-13 Automotive MacPherson struts incorporating a supplementary spring which provides self-adjustment of spring force in relation to the range of spring movement

Country Status (1)

Country Link
DE (1) DE19830922A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1403103A3 (en) * 2002-09-28 2005-04-13 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Adjustable suspension strut for motor vehicles
EP1888357A2 (en) * 2005-06-10 2008-02-20 Bajaj Auto Limited A shock absorber for a motor vehicle
WO2015004676A1 (en) * 2013-07-11 2015-01-15 Kpit Technologies Limited A dynamically adjustable suspension device
US9669674B2 (en) * 2012-12-20 2017-06-06 Thyssenkrupp Bilstein Gmbh Suspension strut for a motor vehicle with a height-adjustment device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1403103A3 (en) * 2002-09-28 2005-04-13 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Adjustable suspension strut for motor vehicles
EP1888357A2 (en) * 2005-06-10 2008-02-20 Bajaj Auto Limited A shock absorber for a motor vehicle
EP1888357A4 (en) * 2005-06-10 2008-12-10 Bajaj Auto Ltd A shock absorber for a motor vehicle
AP2206A (en) * 2005-06-10 2011-02-07 Bajaj Auto Ltd A shock absorber for a motor vehicle.
US9669674B2 (en) * 2012-12-20 2017-06-06 Thyssenkrupp Bilstein Gmbh Suspension strut for a motor vehicle with a height-adjustment device
WO2015004676A1 (en) * 2013-07-11 2015-01-15 Kpit Technologies Limited A dynamically adjustable suspension device
US10315479B2 (en) 2013-07-11 2019-06-11 Kpit Technologies Ltd. Dynamically adjustable suspension device

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Legal Events

Date Code Title Description
8122 Nonbinding interest in granting licenses declared
8139 Disposal/non-payment of the annual fee
8170 Reinstatement of the former position
8141 Disposal/no request for examination