WO1995014583A2 - Spring carrier with sliding spring plate - Google Patents

Spring carrier with sliding spring plate Download PDF

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Publication number
WO1995014583A2
WO1995014583A2 PCT/EP1994/003896 EP9403896W WO9514583A2 WO 1995014583 A2 WO1995014583 A2 WO 1995014583A2 EP 9403896 W EP9403896 W EP 9403896W WO 9514583 A2 WO9514583 A2 WO 9514583A2
Authority
WO
WIPO (PCT)
Prior art keywords
spring
spring plate
retaining ring
support according
plate
Prior art date
Application number
PCT/EP1994/003896
Other languages
German (de)
French (fr)
Other versions
WO1995014583A3 (en
Inventor
Michael Hurrlein
Original Assignee
Fichtel & Sachs 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
Priority claimed from DE4438756A external-priority patent/DE4438756C2/en
Application filed by Fichtel & Sachs Ag filed Critical Fichtel & Sachs Ag
Publication of WO1995014583A2 publication Critical patent/WO1995014583A2/en
Publication of WO1995014583A3 publication Critical patent/WO1995014583A3/en

Links

Classifications

    • 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
    • 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
    • B60G15/063—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 mounting of the spring on the damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/30—Spring/Damper and/or actuator Units
    • B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
    • B60G2202/312—The spring being a wound spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/124—Mounting of coil springs
    • B60G2204/1242—Mounting of coil springs on a damper, e.g. MacPerson strut

Definitions

  • the invention relates to a spring support according to the preamble of claim 1.
  • Such a spring support in the design of a shock absorber is known from DE 37 30 177.
  • the spring plate is rotated so that step-arranged locking means engage.
  • the rotation of the spring plate can bring about the disadvantage in particular in the case of a deliberately inclined position to compensate for the spring forces that the structurally optimal inclined position is not adopted after an axial adjustment of a spring plate, with the result that the desired compensation is no longer achieved.
  • springs with an arcuate longitudinal axis co-ordinate which likewise effect transverse force compensation. If the spring plate has to be rotated, entrainment of the spring by the spring plate is not excluded, so that the lateral force compensation is no longer guaranteed.
  • DE-AS 10 09 442 discloses a spring support with a first spring plate and a second support with a second spring plate and at least one spring, at least one spring plate being axially adjustable so that the spring tension of the spring between the spring plates can be changed is.
  • There are locking means between the carrier and the adjustable spring plate which can be released for axial adjustment, so that the spring plate can be moved from any position to another regardless of the locking means.
  • a disadvantage of the spring support is that the Adjustment of the adjusting disc, the screw in the spring plate is screwed in and, what is very important, is held during the adjustment of the adjusting disc in order to prevent the spring plate from rotating with the screw.
  • DE-PS 40 21 314 shows a type of attachment in which the attachment is ensured by a screw connection.
  • the central bore of the spring plate is provided with an internal thread. The same thread is on the damper tube, so that the spring plate can be adjusted continuously. A nut is countered to secure it.
  • This embodiment does not take into account the described spring plate problem with regard to the lateral force compensation.
  • the number of beads determines the number of adjustment levels.
  • the beads can be molded directly into the carrier, for example with a spring carrier in the form of a two-tube damper.
  • a single-tube damper can also be used by using a separate sleeve section.
  • a plate spring is advantageously formed as a retaining ring.
  • the plate spring can be axially fixed with the spring plate be connected to make the locking of the locking means such that the locking means is automatically effective.
  • the carrier can have a clamping screw connection to the spring plate.
  • This clamping screw connection simply consists of a conical surface of a screw ring and a corresponding counter surface of the tubular body of the spring plate.
  • the retaining ring has a conical surface facing the spring plate, which forms a tension connection with a counter-conical surface that is effectively assigned to the spring plate.
  • the preload force of the spring is used to attach the spring plate to the spring carrier.
  • a suitable selection of the cone angle enables the spring plate to self-lock.
  • the retaining ring forms a conical surface in which it has an L-shaped cross section directed towards the sleeve section and engages with one leg in the sleeve section.
  • the counter-cone surface is formed by a cone ring on which the spring plate is supported.
  • a cone ring has the advantage that a standard spring plate can be used for different spring carrier diameters.
  • the retaining ring has a counter-profile adapted to the profile of the sleeve section, so that the two profiles engage in the assembled position of the spring plate and one normal force via support surfaces for the spring plate, which emanate from the interaction of the spring with the spring plate Exercise radial force component so that at least one clamping surface of the retaining ring is effective with respect to the sleeve section.
  • the support surfaces can be cam-shaped, so that the tolerance influence is significantly less compared to a cone connection. In this context, it makes sense
  • ERS ⁇ ZBL ⁇ T (RULE 26) that the clamping surface engages as protection against rotation in the profile of the sleeve section.
  • the diameter of the retaining ring can be expanded elastically. Tedious skipping of the bead profile can be avoided. So that the retaining ring can be expanded radially, the retaining ring has an essentially axially extending slot. In addition, axially extending cross-sectional reductions, for example grooves, can be molded into the retaining ring, which influence the elastic expansion behavior.
  • the bead profile of the sleeve section can be shaped as desired.
  • the beads have a sawtooth profile, the tooth flanks forming holding surfaces for the retaining ring.
  • the beads can run at an angle to the longitudinal axis, the counter-profile of the retaining ring crossing the beads of the sleeve section. In this way, a very simple anti-rotation lock of the retaining ring with respect to the spring support is achieved.
  • a tongue and groove guide is effective between the spring plate and the carrier as an axial guide.
  • FIG. 1 schematic representation of the installation situation of a
  • Fig. 2-5 embodiment for a spring support 1 is greatly simplified to the installation situation of a spring support 1 in a motor vehicle.
  • the spring support 1 is pivotally arranged via fastening elements 3a / 3b between a vehicle axle 5 and a vehicle body 7. It is irrelevant whether the vehicle axle 5 is a steered or unguided axle. Application to a motorcycle is also conceivable.
  • the spring support consists essentially of a first and a second support 9/11.
  • Each of the carriers has a spring plate 13/15, at least one of the spring plates 13/15 being axially adjustable relative to the corresponding carrier 9/11, around a spring 17 in the function of a vehicle support spring which is between the spring plates 13/15 is tensioned to adjust its preload so that the vehicle's suspension can be adapted to needs.
  • a clamping screw connection which fixes the spring plate 13.
  • a screw ring 35 and the tubular body 25 of the spring plate 13, which form the clamping screw connection have mutually facing conical surfaces 37.
  • the conical surfaces 37 make it possible for the tubular body 37 to be clamped on the outer lateral surface 39 of the carrier 9. So that the spring plate 13 does not turn when the screw ring is tightened, an axial guide 41 is ensured by means of a tongue and groove guide.
  • This embodiment has latching means which comprise a retaining ring and a profiled sleeve section 19.
  • latching means are arranged above the spring plate 13 and thus do not have a holding function with respect to a spring 17. Rather, the locking function serves to enable a very permissible and, above all, reproducible adjustment of the axial position of the spring plate 13.
  • a plate spring 43 serves as a retaining ring, which is firmly connected to the spring plate 13, so that in the event that the screw ring 35 is loosened and an axial adjustment is made, the plate spring 43 occupy a defined position.
  • the spring plate 13 assumes the highest axial setting. After loosening the screw ring 35, the spring plate 13 with the plate spring 43 can be moved axially downward until the plate spring engages again in the desired position within the profiled sleeve section 31.
  • the plate spring ensures sufficient counter-holding force so that the screw connection with its conical surfaces is effective.
  • FIG. 3 shows a simplified illustration of the spring carrier 9 in a modification of FIG. 2, the retaining ring 43 having a conical surface 45 which forms a tension connection with a counter surface 47 which is effectively associated with the spring plate 13.
  • the retaining ring In the left half section, the retaining ring has an L-shaped cross section directed towards the carrier 9, which engages with a leg 43a in the sleeve section 19, which is worked directly into the carrier 9.
  • the retaining ring 43 can be elastically expanded via an axially extending slot 49 (see plan view), so that the optimal position of the spring plate can be set very quickly.
  • the spring presses on the spring plate 13, the counter surface 47 of which prestresses the retaining ring 43.
  • the profile of the sleeve section 19 is designed like a sawtooth profile.
  • the teeth extend radially in the direction of the spring plate 13, so that the tooth flanks 53 form holding surfaces for the retaining ring 43.
  • the right half section shows a modification of the left half section, in which a retaining ring 43 with a trapezoidal cross section is used, the radially outer side of which forms the conical surface 45.
  • a web 55, the component of the spring plate 13 is, together with a groove 57 in the sleeve section 19, an axial guide.
  • a mandrel-like extension 59 on the retaining ring 43 engages in the profile of the sleeve section, which in this variant has symmetrical tooth flanks.
  • FIG. 4 shows in principle a combination of the two versions according to FIG. 3.
  • the holding ring 43 is identical to FIG. 3.
  • the counter surface 47 to the conical surface 45 of the holding ring 43 is formed by a conical ring 61.
  • the conical ring 61 is used for the radial guidance as well as for the axial support of the spring plate 13.
  • a transition curve 63 between a support surface 65 and the outer surface 67 compensates for manufacturing tolerances.
  • the retaining ring 43 is placed over the spring support 9.
  • the cone ring centers itself after threading.
  • the spring plate is assembled in the same way. An adjustment is made in the opposite way.
  • FIG. 5 shows a tubular holding ring 43 which has a counter-profile in its inner diameter which is adapted to the sleeve section 19 and which engages in the profile of the sleeve section 19.
  • support surfaces 69 are stamped on the retaining ring in the form of cams.
  • clamping surfaces 71 are formed on the retaining ring, which engage in the profile of the sleeve section 19 and are pressed by the normal forces acting between the cam and the spring plate 13.
  • the beads are designed at an angle of inclination ⁇ to the longitudinal axis of the spring support 9.
  • clamping surfaces 71 are pressed in on the circumference of the holding element 43.
  • the clamping surfaces prevent twisting, since as a counter profile they cross the profile of the sleeve section 19 which runs at the helix angle ⁇ .
  • the clamping surfaces 71 are also axially supported in the sleeve section. So that the retaining ring 43 can be expanded elastically accordingly, it has an axially extending slot 49 and axially extending cross-sectional reductions 73 in the form of grooves.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

The proposed spring carrier comprises: a first carrier (9), with a spring plate and a second carrier (11) with a spring plate, at least one spring plate (13) being slidable axially so that the spring tension of a spring (17) between the spring plates can be adjusted; and snap-in locking devices which engage between the adjustable spring plate and associated carrier and can be released to allow the spring plate to slide axially. The spring plate when thus slid moves from any position into another without rotating and independently of the locking devices, which are locked once that new position is reached. The proposed spring carrier is characterized by the fact that the snap-in locking devices comprise a shaped sleeve section (19, 31) of the carrier and a securing ring (43) which can lock into place in the shaped section.

Description

FEDERTRAGER MIT VERSTELLBAREM FEDERTELLER SPRING RACK WITH ADJUSTABLE SPRING PAD
B e s c h r e i b u n gDescription
Die Erfindung betrifft einen Federträger entsprechend dem Oberbegriff von Patentanspruch 1.The invention relates to a spring support according to the preamble of claim 1.
Ein solcher Federträger in der Ausführung eines Federbeins ist aus der DE 37 30 177 bekannt. Bei diesem Federbein wird der Federteller verdreht, so daß gestuft angeordnete Rastmittel eingreifen. Das Verdrehen des Federtellers kann insbesondere bei einer bewußt eingesetzten Schrägstellung zur Kompensation der Federkräfte den Nachteil mit sich bringen, daß die kon¬ struktiv optimale Schrägstellung nach einer Axialverstellung eines Federtellers nicht eingenommen wird mit der Folge, daß die angestrebte Kompensation nicht mehr erreicht wird. Ähn¬ liches gilt für den Fall, wenn Federn mit bogenförmiger Längsachse zur Anwendung koitimen, die ebenfalls eine Quer- kraftkompensation bewirken. Muß der Federteller verdreht wer¬ den, so ist eine Mitnahme der Feder durch den Federteller nicht ausgeschlossen, so daß die Querkraftkompensation nicht mehr gewährleistet ist.Such a spring support in the design of a shock absorber is known from DE 37 30 177. In this spring strut, the spring plate is rotated so that step-arranged locking means engage. The rotation of the spring plate can bring about the disadvantage in particular in the case of a deliberately inclined position to compensate for the spring forces that the structurally optimal inclined position is not adopted after an axial adjustment of a spring plate, with the result that the desired compensation is no longer achieved. The same applies to the case when springs with an arcuate longitudinal axis co-ordinate, which likewise effect transverse force compensation. If the spring plate has to be rotated, entrainment of the spring by the spring plate is not excluded, so that the lateral force compensation is no longer guaranteed.
Aus der DE-AS 10 09 442 ist ein Federträger mit einem ersten Federteller und einem zweiten Träger mit einem zweiten Feder¬ teller sowie mindestens einer Feder bekannt, wobei mindestens ein Federteller axial verstellbar ausgeführt ist, so daß die Federspannung der Feder zwischen den Federtellern veränderbar ist. Es sind Rastmittel zwischen dem Träger und dem verstell¬ baren Federteller wirksam, die zur Axialverstellung gelöst werden können, so daß der Federteller unabhängig von den Rastmitteln von einer beliebigen Lage in eine andere bewegt werden kann. Nachteilig an dem Federträger ist, daß bei der Verstellung der Stellscheibe die Schraube im Federteller ein¬ gedreht und, was ganz wichtig ist, bei der Verstellung der Stellscheibe gehalten werden, um ein Mitdrehen des Federtel¬ lers über die Schraube zu vermeiden.DE-AS 10 09 442 discloses a spring support with a first spring plate and a second support with a second spring plate and at least one spring, at least one spring plate being axially adjustable so that the spring tension of the spring between the spring plates can be changed is. There are locking means between the carrier and the adjustable spring plate which can be released for axial adjustment, so that the spring plate can be moved from any position to another regardless of the locking means. A disadvantage of the spring support is that the Adjustment of the adjusting disc, the screw in the spring plate is screwed in and, what is very important, is held during the adjustment of the adjusting disc in order to prevent the spring plate from rotating with the screw.
Die DE-PS 40 21 314 zeigt eine Art der Befestigung, bei der die Befestigung durch eine Schraubverbindung sichergestellt wird. In diesem Falle ist die zentrale Bohrung des Federtel¬ lers mit einem Innengewinde versehen. Das gleiche Gewinde be¬ findet sich auf dem Dämpferrohr, so daß der Federteller stu¬ fenlos einjustiert werden kann. Zur Sicherung wird eine Mutter gegengekontert. Diese Ausführungsform läßt die beschriebene Federtellerproblematik hinsichtlich der Querkraftkompensation unberücksichtigt.DE-PS 40 21 314 shows a type of attachment in which the attachment is ensured by a screw connection. In this case, the central bore of the spring plate is provided with an internal thread. The same thread is on the damper tube, so that the spring plate can be adjusted continuously. A nut is countered to secure it. This embodiment does not take into account the described spring plate problem with regard to the lateral force compensation.
Ausgehend vom aufgezeigten Stand der Technik soll eine Mög¬ lichkeit zur Verstellung der Vorspannung der Feder realisiert werden, bei der die Probleme bezüglich der Querkraftkompensa¬ tion sicher vermieden werden.On the basis of the prior art shown, a possibility for adjusting the pretension of the spring is to be realized, in which the problems relating to the lateral force compensation are reliably avoided.
Erfindungsgemäß wird die Aufgabe durch den Patentanspruch 1 gelöst.According to the invention the object is achieved by patent claim 1.
Aufgrund der Tatsache, daß der Federteller nicht verdreht wird, ist die Möglichkeit der Federverdrehung ausgeschaltet. Folglich können keine Änderungen der Wirklinien der Feder¬ kräfte auftreten. Es kann eine unabhängige Lage des Federtel¬ lers in Umfangsrichtung von der Verrastung erreicht werden. Die Anzahl der Sicken bestimmt die Anzahl Verstellstufen. Die Sicken können bei dem Träger direkt eingeformt sein, bei¬ spielsweise bei einem Federträger in der Ausführung eines Zweirohrdämpfers. Andererseits läßt sich durch den Einsatz eines separaten Hülsenabschnitts auch ein Einrohrdämpfer ver¬ wenden.Due to the fact that the spring plate is not rotated, the possibility of spring rotation is switched off. Consequently, no changes in the lines of action of the spring forces can occur. An independent position of the spring plate in the circumferential direction of the latching can be achieved. The number of beads determines the number of adjustment levels. The beads can be molded directly into the carrier, for example with a spring carrier in the form of a two-tube damper. On the other hand, a single-tube damper can also be used by using a separate sleeve section.
Als Haltering wird vorteilhafterweise von einer Tellerfeder gebildet. Die Tellerfeder kann axial fest mit dem Federteller verbunden sein, um die Verrastung der Rastmittel derart zu gestalten, daß die Rastmittel selbsttätig wirksam wird.A plate spring is advantageously formed as a retaining ring. The plate spring can be axially fixed with the spring plate be connected to make the locking of the locking means such that the locking means is automatically effective.
Als zusätzliche Sicherung kann der Träger eine Klemmschraub¬ verbindung zum Federteller aufweisen. Diese Klemmschraubver- bindung besteht einfacherweise aus einer Kegelfläche eines Schraubringes und einer entsprechenden Gegenfläche des Rohr¬ körpers des Federtellers. Bei einer alternativen Ausführungs¬ form weist der Haltering eine zum Federteller weisende Konus¬ fläche auf, die mit einer dem Federteller wirkmäßig zugeord¬ neten Gegenkonusfläche eine Spannverbindung bildet. Es wird die Vorspannkraft der Feder ausgenutzt, um den Federteller am Federträger zu befestigen. Durch eine geeignete Auswahl der Konuswinkel kann eine Selbsthemmung des Federtellers erreicht werden.As an additional safeguard, the carrier can have a clamping screw connection to the spring plate. This clamping screw connection simply consists of a conical surface of a screw ring and a corresponding counter surface of the tubular body of the spring plate. In an alternative embodiment, the retaining ring has a conical surface facing the spring plate, which forms a tension connection with a counter-conical surface that is effectively assigned to the spring plate. The preload force of the spring is used to attach the spring plate to the spring carrier. A suitable selection of the cone angle enables the spring plate to self-lock.
So bildet beispielsweise der Haltering eine Konusfläche, in dem dieser einen L-förmigen, zum Hülsenabschnitt gerichteten Querschnitt aufweist, und mit einem Schenkel in den Hülsenab¬ schnitt eingreift. Alternativ wird die Gegenkonusfläche von einem Konusring gebildet, auf den sich der Federteller ab¬ stützt. Ein Konusring bietet den Vorteil, daß ein Standardfe¬ derteller für verschiedene Federträgerdurchmesser verwendet werden kann.For example, the retaining ring forms a conical surface in which it has an L-shaped cross section directed towards the sleeve section and engages with one leg in the sleeve section. Alternatively, the counter-cone surface is formed by a cone ring on which the spring plate is supported. A cone ring has the advantage that a standard spring plate can be used for different spring carrier diameters.
Darüberhinaus besteht die Möglichkeit, daß der Haltering ein dem Profil des Hülsenabschnitts angepaßtes Gegenprofil auf¬ weist, so daß die beiden Profile in der montierten Stellung des Federtellers ineinandergreifen und über Stützflächen für den Federteller Normalkräfte, die vom Zusammenwirken der Feder mit dem Federteller ausgehen, eine Radialkraftkomponente aus¬ üben, so daß mindestens eine Klemmfläche des Halteringes be¬ zügliche des Hülsenabschnitts wirksam wird. Dabei können die Stützflächen nockenförmig ausgebildet sein, so daß der Tole¬ ranzeinfluß im Vergleich zu einer Konusverbindung deutlich geringer ausfällt. In diesem Zusammenhang bietet es sich an,In addition, there is the possibility that the retaining ring has a counter-profile adapted to the profile of the sleeve section, so that the two profiles engage in the assembled position of the spring plate and one normal force via support surfaces for the spring plate, which emanate from the interaction of the spring with the spring plate Exercise radial force component so that at least one clamping surface of the retaining ring is effective with respect to the sleeve section. The support surfaces can be cam-shaped, so that the tolerance influence is significantly less compared to a cone connection. In this context, it makes sense
ERSÄΓZBLÄΓT (REGEL 26) daß die Klemmfläche als Verdrehsicherung in das Profil des Hülsenabschnitts eingreift.ERSÄΓZBLÄΓT (RULE 26) that the clamping surface engages as protection against rotation in the profile of the sleeve section.
Für ein schnelles und vor allen Dingen verschleißarmes Posi¬ tionieren des Federtellers ist der Haltering in seinem Durch¬ messer elastisch erweiterbar. Mühseliges Überspringen des Sickenprofils kann vermieden werden. Damit sich der Haltering radial aufweiten läßt, weist der Haltering einen im Wesent¬ lichen axial verlaufenden Schlitz auf. Zusätzlich können axial verlaufende Querschnittsreduzierungen, beispielsweise Nuten, in den Haltering eingeformt sein, die das elastische Aufweit¬ verhalten beeinflussen.In order for the spring plate to be positioned quickly and, above all, with little wear, the diameter of the retaining ring can be expanded elastically. Tedious skipping of the bead profile can be avoided. So that the retaining ring can be expanded radially, the retaining ring has an essentially axially extending slot. In addition, axially extending cross-sectional reductions, for example grooves, can be molded into the retaining ring, which influence the elastic expansion behavior.
Grundsätzlich läßt sich das Sickenprofil des Hülsenabschnitts beliebig ausformen. Es hat sich aber als vorteilhaft erwiesen, wenn die Sicken ein Sägezahnprofil aufweisen, wobei die Zahn¬ flanken Halteflächen für den Haltering bilden. Zusätzlich können die Sicken unter einem Schrägungswinkel zur Längs¬ achse verlaufen, wobei das Gegenprofil des Halteringes die Sicken des Hülsenabschnitts kreuzt. Auf diese Art und Weise wird eine sehr einfache Verdrehsicherung des Halteringes be¬ züglich des Federträgers erreicht.Basically, the bead profile of the sleeve section can be shaped as desired. However, it has proven to be advantageous if the beads have a sawtooth profile, the tooth flanks forming holding surfaces for the retaining ring. In addition, the beads can run at an angle to the longitudinal axis, the counter-profile of the retaining ring crossing the beads of the sleeve section. In this way, a very simple anti-rotation lock of the retaining ring with respect to the spring support is achieved.
Damit unter gar keinen Umständen eine Verdrehbewegung des Fe¬ dertellers bezüglich des Trägers möglich ist, ist vorgesehen, daß zwischen dem Federteller und dem Träger als Axialführung eine Nut-Federführung wirksam ist.So that under no circumstances a rotational movement of the spring plate with respect to the carrier is possible, it is provided that a tongue and groove guide is effective between the spring plate and the carrier as an axial guide.
Anhand der folgenden Figurenbeschreibung soll die Erfindung näher erläutert werden.The invention will be explained in more detail with the aid of the following description of the figures.
Es zeigt:It shows:
Fig. 1 Prinzipdarstellung der Einbausituation einesFig. 1 schematic representation of the installation situation of a
FederträgersSpring support
Fig . 2-5 Ausführungsbeispiel für einen Federträger Die Figur 1 beschränkt sich stark vereinfacht auf die Einbau¬ situation eines Federträgers 1 bei einem Kraftfahrzeug. Der Federträger 1 ist über Befestigungselemente 3a/3b zwischen einer Fahrzeugachse 5 und einem Fahrzeugaufbau 7 drehgelenkig angeordnet. Dabei ist es unerheblich, ob es sich bei der Fahrzeugachse 5 um eine gelenkte oder ungelenkte Achse han¬ delt. Genauso ist eine Anwendung bei einem Krad denkbar.Fig. 2-5 embodiment for a spring support 1 is greatly simplified to the installation situation of a spring support 1 in a motor vehicle. The spring support 1 is pivotally arranged via fastening elements 3a / 3b between a vehicle axle 5 and a vehicle body 7. It is irrelevant whether the vehicle axle 5 is a steered or unguided axle. Application to a motorcycle is also conceivable.
Der Federträger besteht im wesentlichen aus einem ersten und einem zweiten Träger 9/11. Jeder der Träger weist einen Fe¬ derteller 13/15 auf, wobei mindestens einer der Federtel¬ ler 13/15 axial zum entsprechenden Träger 9/11 verstellbar ausgeführt ist, um eine Feder 17 in der Funktion einer Fahr¬ zeugtragfeder, die zwischen den Federtellern 13/15 verspannt ist, in ihrer Vorspannung zu verstellen, damit das Fahrzeug in seiner Federung den Bedürfnissen angepaßt werden kann.The spring support consists essentially of a first and a second support 9/11. Each of the carriers has a spring plate 13/15, at least one of the spring plates 13/15 being axially adjustable relative to the corresponding carrier 9/11, around a spring 17 in the function of a vehicle support spring which is between the spring plates 13/15 is tensioned to adjust its preload so that the vehicle's suspension can be adapted to needs.
In der Figur 2 kommt eine Klemmschraubenverbindung zur Anwen¬ dung, die den Federteller 13 fixiert. Dabei besitzen ein Schraubring 35 und der Rohrkörper 25 des Federtellers 13, die die Klem schraubverbindung bilden, einander zugewandten Ke¬ gelflächen 37. Die Kegelflächen 37 ermöglichen es, daß der Rohrkörper 37 auf der Außenmantelfläche 39 des Trägers 9 ver¬ spannt wird. Damit sich der Federteller 13 beim Anziehen des Schraubringes nicht verdreht, wird mittels einer Nut-Feder¬ führung eine Axialführung 41 gewährleistet.In FIG. 2, a clamping screw connection is used, which fixes the spring plate 13. In this case, a screw ring 35 and the tubular body 25 of the spring plate 13, which form the clamping screw connection, have mutually facing conical surfaces 37. The conical surfaces 37 make it possible for the tubular body 37 to be clamped on the outer lateral surface 39 of the carrier 9. So that the spring plate 13 does not turn when the screw ring is tightened, an axial guide 41 is ensured by means of a tongue and groove guide.
Diese Ausführungsform besitzt Rastmittel, die einen Haltering und einen profilierten Hülsenabschnitt 19 umfassen. Der Un¬ terschied besteht darin, daß die Rastmittel oberhalb des Fe¬ dertellers 13 angeordnet sind, und somit keine Haltefunktion gegenüber einer Feder 17 ausüben. Vielmehr dient die Rast¬ funktion dazu, eine sehr zulässige und vor allem reproduzier¬ bare Einstellung der Axiallage des Federtellers 13 zu ermög¬ lichen. Dabei dient als Haltering eine Tellerfeder 43, die fest mit dem Federteller 13 verbunden ist, damit in dem Falle, daß der Schraubring 35 gelöst und eine Axialverstellung vorgenommen wird, die Tellerfeder 43 eine definierte Position einnimm .This embodiment has latching means which comprise a retaining ring and a profiled sleeve section 19. The difference is that the latching means are arranged above the spring plate 13 and thus do not have a holding function with respect to a spring 17. Rather, the locking function serves to enable a very permissible and, above all, reproducible adjustment of the axial position of the spring plate 13. In this case, a plate spring 43 serves as a retaining ring, which is firmly connected to the spring plate 13, so that in the event that the screw ring 35 is loosened and an axial adjustment is made, the plate spring 43 occupy a defined position.
In der Darstellung nimmt der Federteller 13 die höchste Axi¬ aleinstellung ein. Nach dem Lösen des Schraubringes 35 kann der Federteller 13 mit der Tellerfeder 43 axial nach unten verschoben werden, bis die Tellerfeder wieder in die ge¬ wünschte Stellung innerhalb des profilierten Hülsenabschnitts 31 einrastet. Dabei sorgt die Tellerfeder für eine ausrei¬ chende Gegenhaltekraft, damit die Schraubverbindung mit ihren Kegelflächen sicher wirksam wird.In the illustration, the spring plate 13 assumes the highest axial setting. After loosening the screw ring 35, the spring plate 13 with the plate spring 43 can be moved axially downward until the plate spring engages again in the desired position within the profiled sleeve section 31. The plate spring ensures sufficient counter-holding force so that the screw connection with its conical surfaces is effective.
Die Fig. 3 zeigt eine vereinfachte Darstellung des Federträ¬ gers 9 in Abwandlung zur Fig. 2, wobei der Haltering 43 eine Konusfläche 45 aufweist, die mit einer dem Federteller 13 wirkmäßig zugeordneten Gegenfläche 47 eine Spannverbindung bildet. Dabei weist der Haltering im linken Halbschnitt einen zum Träger 9 gerichteten L-förmigen Querschnitt auf, der mit einem Schenkel 43a in den Hülsenabschnitt 19 eingreift, der direkt in den Träger 9 eingearbeitet ist. Zur Montage ist der Haltering 43 über einen axial verlaufenden Schlitz 49 (siehe Draufsicht) elastisch aufweitbar, so daß sehr schnell die op¬ timale Position des Federtellers einstellbar ist. In der ein¬ gestellten Betriebsposition drückt die nicht dargestellte Fe¬ der auf den Federteller 13, dessen Gegenfläche 47 den Halte¬ ring 43 vorspannt.FIG. 3 shows a simplified illustration of the spring carrier 9 in a modification of FIG. 2, the retaining ring 43 having a conical surface 45 which forms a tension connection with a counter surface 47 which is effectively associated with the spring plate 13. In the left half section, the retaining ring has an L-shaped cross section directed towards the carrier 9, which engages with a leg 43a in the sleeve section 19, which is worked directly into the carrier 9. For mounting, the retaining ring 43 can be elastically expanded via an axially extending slot 49 (see plan view), so that the optimal position of the spring plate can be set very quickly. In the set operating position, the spring (not shown) presses on the spring plate 13, the counter surface 47 of which prestresses the retaining ring 43.
In diesem Ausführungsbeispiel ist das Profil des Hülsenab¬ schnitts 19 wie ein Sägezahnprofil ausgebildet. Dabei er¬ strecken sich die Zähne radial in Richtung des Federtel¬ lers 13, so daß die Zahnflanken 53 Halteflächen für den Haltering 43 bilden.In this exemplary embodiment, the profile of the sleeve section 19 is designed like a sawtooth profile. The teeth extend radially in the direction of the spring plate 13, so that the tooth flanks 53 form holding surfaces for the retaining ring 43.
Der rechte Halbschnitt zeigt eine Abwandlung des linken Halb¬ schnitts, in den in dem ein Haltering 43 mit trapezförmigen Querschnitt zur Anwendung kommt, dessen radial außen liegende Seite die Konusfläche 45 bildet. Ein Steg 55, der Bestandteil des Federtellers 13 ist, stellt zusammen mit einer Nut 57 im Hülsenabschnitt 19 eine Axialführung dar. Ein dornähnlicher Fortsatz 59 am Haltering 43 greift in das Profil des Hülsen¬ abschnitts, daß in dieser Variante symmetrische Zahnflanken aufweist.The right half section shows a modification of the left half section, in which a retaining ring 43 with a trapezoidal cross section is used, the radially outer side of which forms the conical surface 45. A web 55, the component of the spring plate 13 is, together with a groove 57 in the sleeve section 19, an axial guide. A mandrel-like extension 59 on the retaining ring 43 engages in the profile of the sleeve section, which in this variant has symmetrical tooth flanks.
Die Fig. 4 zeigt im Prinzip eine Kombination der beiden Ver¬ sionen nach Fig. 3. Der Haltering 43 ist identisch nach Fig. 3. Die Gegenfläche 47 zur Konusfläche 45 des Halterin¬ ges 43 wird von einem Konusring 61 gebildet. Zur radialen Führung wie auch zur axialen Abstützung des Federtellerε 13 wird der Konusring 61 verwendet. Eine Übergangsrundung 63 zwischen einer Abstützflache 65 und der Außenfläche 67 gleicht dabei Fertigungstoleranzen aus.4 shows in principle a combination of the two versions according to FIG. 3. The holding ring 43 is identical to FIG. 3. The counter surface 47 to the conical surface 45 of the holding ring 43 is formed by a conical ring 61. The conical ring 61 is used for the radial guidance as well as for the axial support of the spring plate 13. A transition curve 63 between a support surface 65 and the outer surface 67 compensates for manufacturing tolerances.
Zur Montage wird der Haltering 43 dem Federträger 9 überge¬ stellt. Der Konusring zentriert sich nach dem Auffädeln selbsttätig. Auf dieselbe Art wird der Federteller montiert. Eine Verstellung erfolgt auf die umgekehrte Art und Weise.For assembly, the retaining ring 43 is placed over the spring support 9. The cone ring centers itself after threading. The spring plate is assembled in the same way. An adjustment is made in the opposite way.
Die Ausführung nach Fig. 5 zeigt einen röhrförmigen Halte¬ ring 43, der ein den Hülsenabschnitt 19 angepaßtes Gegenprofil in seinem Innendurchmesser aufweist, das in das Profil des Hülsenabschnitts 19 eingreift. Für den Federteller 19 sind an dem Haltering 43 Stützflächen 69 in Form von Nocken angeprägt. Axial unterhalb der Nocken sind am Haltering Klemmflachen 71 angeformt, die in das Profil des Hülsenabschnitts 19 eingrei¬ fen und durch die zwischen dem Nocken und dem Federteller 13 wirksamen Normalkräfte angedrückt werden. Zusätzlich sind die Sicken unter einem Schrägungswinkel α zur Längsachse des Fe¬ derträgers 9 ausgeführt. Bei der Montage wird der Haltering 43 auf die vorgesehene Position eingestellt. Anschließend erfolgt das Einpressen von Klemmflächen 71 auf dem Umfang des Halter¬ inges 43. Die Klemmflachen verhindern ein Verdrehen, da sie als Gegenprofil das unter dem Schrägungswinkel α verlaufende Profil des Hülsenabschnitts 19 kreuzen. Auch axial stützen sich die Klemmflächen 71 im Hülsenabschnitt ab. Damit der Haltering 43 entsprechend elastisch aufweitbar ist, weist dieser einen axial verlaufenden Schlitz 49 und axial verlaufende Querschnittsreduzierungen 73 in Form von Nuten auf. The embodiment according to FIG. 5 shows a tubular holding ring 43 which has a counter-profile in its inner diameter which is adapted to the sleeve section 19 and which engages in the profile of the sleeve section 19. For the spring plate 19 43 support surfaces 69 are stamped on the retaining ring in the form of cams. Axially below the cams, clamping surfaces 71 are formed on the retaining ring, which engage in the profile of the sleeve section 19 and are pressed by the normal forces acting between the cam and the spring plate 13. In addition, the beads are designed at an angle of inclination α to the longitudinal axis of the spring support 9. During assembly, the retaining ring 43 is set to the intended position. Subsequently, clamping surfaces 71 are pressed in on the circumference of the holding element 43. The clamping surfaces prevent twisting, since as a counter profile they cross the profile of the sleeve section 19 which runs at the helix angle α. The clamping surfaces 71 are also axially supported in the sleeve section. So that the retaining ring 43 can be expanded elastically accordingly, it has an axially extending slot 49 and axially extending cross-sectional reductions 73 in the form of grooves.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Federträger, umfassend einen ersten Träger mit einem Fe¬ derteller und einen zweiten Träger mit einem Federteller, wobei mindestens ein Federteller axial verstellbar ist, so daß die Federspannung einer Feder zwischen den Feder¬ tellern veränderbar ist, Rastmittel, die zwischen dem verstellbaren Federteller und dem zugehörigen Träger wirksam sind, daß die Rastmittel zur Axialverstellung des Federtellers gelöst werden und der Federteller bei der Axialverstellung unabhängig von den Rastmitteln von einer beliebigen Lage in eine andere verdrehfrei bewegt wird und in dieser Position die Rastmittel arretiert werden, dadurch gekennzeichnet, daß die Rastmittel des Trä¬ gers (9,11) aus einem profilierten Hülsenab¬ schnitt (19,31) mit mindestens zwei umlaufende Sicken und einem in das Profil einrastbaren Haltering bestehen.1. spring support comprising a first support with a spring plate and a second support with a spring plate, at least one spring plate being axially adjustable so that the spring tension of a spring between the spring plates can be changed, locking means between the adjustable spring plate and the associated carrier are effective that the locking means for the axial adjustment of the spring plate are loosened and the spring plate is moved in the axial adjustment regardless of the locking means from any position to another without rotation and the locking means are locked in this position, characterized in that the Latching means of the carrier (9, 11) consist of a profiled sleeve section (19, 31) with at least two circumferential beads and a retaining ring which can be snapped into the profile.
2. Federträger nach Anspruch 1, dadurch gekennzeichnet, daß der Haltering von einer Tellerfeder (43) gebildet wird.2. Spring support according to claim 1, characterized in that the retaining ring is formed by a plate spring (43).
3. Federträger nach Anspruch 2, dadurch gekennzeichnet, daß die Tellerfeder (43) axial fest mit dem Federtel¬ ler (13,15) verbunden ist.3. Spring support according to claim 2, characterized in that the plate spring (43) is axially fixed to the Federtel¬ ler (13,15).
4. Federträger nach einem beliebigen Anspruch, dadurch ge¬ kennzeichnet, daß der Träger (9) eine Klemmschraubver¬ bindung zum Federteller (13,15) aufweist.4. Spring support according to any claim, characterized ge indicates that the support (9) has a Klemmschraubver¬ connection to the spring plate (13, 15).
5. Federträger nach Anspruch 1, dadurch gekennzeichnet, daß die Klemmschraubverbindung aus einer Kegelfläche (37) eines Schraubringes (35) und einer entsprechenden Gegen¬ fläche des Rohrkörpers (25) des Federtellers (13,15) be¬ steht.5. Spring support according to claim 1, characterized in that the clamping screw connection from a conical surface (37) a screw ring (35) and a corresponding counter surface of the tubular body (25) of the spring plate (13, 15).
6. Federträger nach Anspruch 1, dadurch gekennzeichnet, daß der Haltering (43) eine zum Federteller (13,15) weisende Konusfläche (45) aufweist, die mit einer dem Federtel¬ ler (13,15) wirkmäßig zugeordneten Gegenkonusflä¬ che (47,41) eine Spannverbindung bildet.6. Spring support according to claim 1, characterized in that the retaining ring (43) has a cone surface (45) facing the spring plate (13, 15), which with a spring cone (13, 15) effectively assigned to the cone surface (47 , 41) forms a clamping connection.
7. Federträger nach Anspruch 6, dadurch gekennzeichnet, daß der Haltering (43) einen L-förmigen zum Hülsenab¬ schnitt (19) gerichteten Querschnitt aufweist, um mit einem Schenkel (43a) in den Hülsenabschnitt eingreift.7. A spring support according to claim 6, characterized in that the retaining ring (43) has an L-shaped cross section directed to the sleeve section (19) in order to engage with a leg (43a) in the sleeve section.
8. Federträger nach Anspruch 6, dadurch gekennzeichnet, daß die Gegenkonusfläche von einem Konusring (61) gebildet wird, auf den sich der Federteller (13,15) abstützt.8. Spring support according to claim 6, characterized in that the counter-conical surface is formed by a conical ring (61) on which the spring plate (13, 15) is supported.
9. Federträger nach Anspruch 1, dadurch gekennzeichnet, daß der Haltering (43) einem Profil des Hülsenabschnitts (19) angepaßtes Gegenprofil aufweist, so daß in der montierten Stellung des Federtellers beide Profile ineinandergreifen und über Stützflächen (69) für den Federteller (13,15) Normalkräfte, die vom Zusammenwirken der Feder (17) mit dem Federteller (13,15) ausgehen, eine Radialkraftkompo¬ nente ausüben, so daß mindestens eine Klemmfläche (71) des Halteringes bezüglich des Hülsenabschnitts wirksam wird.9. Spring support according to claim 1, characterized in that the retaining ring (43) has a profile of the sleeve section (19) adapted counter profile, so that in the assembled position of the spring plate, both profiles interlock and via support surfaces (69) for the spring plate (13, 15) Normal forces, which result from the interaction of the spring (17) with the spring plate (13, 15), exert a radial force component, so that at least one clamping surface (71) of the retaining ring is effective with respect to the sleeve section.
10. Federträger nach Anspruch 9, dadurch gekennzeichnet, daß die Klemmfläche (71) als VerdrehSicherung in das Profil des Hülsenabschnitts (19) eingreift.10. Spring support according to claim 9, characterized in that the clamping surface (71) engages as an anti-rotation device in the profile of the sleeve portion (19).
11. Federträger nach den Ansprüchen 1,6,9, dadurch gekenn¬ zeichnet, daß der Haltering (43) im selben Durchmesser elastisch erweiterbar ist. 11. Spring support according to claims 1,6,9, characterized gekenn¬ characterized in that the retaining ring (43) is elastically expandable in the same diameter.
12. Federträger nach Anspruch 11, dadurch gekennzeichnet, daß der Haltering (43) einen im wesentlichen axial verlau¬ fenden Schlitz (49) aufweist, der eine radiale Aufweitung des Halteringes ermöglicht.12. A spring support according to claim 11, characterized in that the retaining ring (43) has a substantially axially extending slot (49) which enables the retaining ring to be expanded radially.
13. Federträger nach den Ansprüchen 11 und 12, dadurch ge¬ kennzeichnet, daß der Haltering (43) mindestens eine, im wesentlichen axial verlaufende Querschnittsreduzie¬ rung (73) aufweist.13. Spring support according to claims 11 and 12, characterized in that the retaining ring (43) has at least one, substantially axially extending cross-sectional reduction (73).
14. Federträger nach einem der Ansprüche 1 - 13, dadurch ge¬ kennzeichnet, daß die Sicken des Hülsenabschnitts 19,31 ein Sägezahnprofil aufweisen, wobei die Zahnflanken (53) Halteflächen für den Haltering (43) bilden.14. Spring support according to one of claims 1-13, characterized ge indicates that the beads of the sleeve portion 19, 31 have a sawtooth profile, the tooth flanks (53) forming holding surfaces for the retaining ring (43).
15. Federträger nach Anspruch 1,9 und 10, dadurch gekenn¬ zeichnet, daß die Sicken unter einem Schrägungswinkel α zur Längsachse verlaufen, wobei das Gegenprofil des Hal¬ teringes (43) die Sicken des Hülsenabschnitts (19,31) kreuzen.15. Spring support according to claim 1, 9 and 10, characterized in that the beads extend at an angle of inclination α to the longitudinal axis, the counter profile of the retaining ring (43) crossing the beads of the sleeve section (19, 31).
16. Federträger nach einem beliebigen Anspruch, dadurch ge¬ kennzeichnet, daß zwischen dem Hülsenring (43 und/oder dem Federteller (13,15) und dem Träger (9,11) durch eine Nut-Federführung eine Axialführung wirksam ist. 16. Spring support according to any claim, characterized ge indicates that an axial guide is effective between the sleeve ring (43 and / or the spring plate (13, 15) and the support (9, 11) by a tongue and groove guide.
PCT/EP1994/003896 1993-11-26 1994-11-24 Spring carrier with sliding spring plate WO1995014583A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEP4345216.7 1993-11-26
DE4345216 1993-11-26
DEP4438756.3 1994-10-29
DE4438756A DE4438756C2 (en) 1993-11-26 1994-10-29 Spring carrier with adjustable spring plate

Publications (2)

Publication Number Publication Date
WO1995014583A2 true WO1995014583A2 (en) 1995-06-01
WO1995014583A3 WO1995014583A3 (en) 1995-08-10

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FR2829431A1 (en) * 2001-09-08 2003-03-14 Zf Sachs Ag Suspension strut for e.g. motor vehicles, has moldable material that contacts sleeve of spring perch to support spring perch on cylinder when moldable material is in solid state
JP2013044335A (en) * 2011-08-22 2013-03-04 Kyb Co Ltd Hydraulic shock absorber

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2829431A1 (en) * 2001-09-08 2003-03-14 Zf Sachs Ag Suspension strut for e.g. motor vehicles, has moldable material that contacts sleeve of spring perch to support spring perch on cylinder when moldable material is in solid state
JP2013044335A (en) * 2011-08-22 2013-03-04 Kyb Co Ltd Hydraulic shock absorber

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