FR2712949A1 - Absorption sheath for torsion bar - Google Patents

Absorption sheath for torsion bar Download PDF

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Publication number
FR2712949A1
FR2712949A1 FR9313942A FR9313942A FR2712949A1 FR 2712949 A1 FR2712949 A1 FR 2712949A1 FR 9313942 A FR9313942 A FR 9313942A FR 9313942 A FR9313942 A FR 9313942A FR 2712949 A1 FR2712949 A1 FR 2712949A1
Authority
FR
France
Prior art keywords
bar
sheath
frame
torsion bar
elastomer
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.)
Granted
Application number
FR9313942A
Other languages
French (fr)
Other versions
FR2712949B1 (en
Inventor
Girard Andre
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.)
Hutchinson SA
Original Assignee
Hutchinson SA
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 Hutchinson SA filed Critical Hutchinson SA
Priority to FR9313942A priority Critical patent/FR2712949B1/en
Publication of FR2712949A1 publication Critical patent/FR2712949A1/en
Application granted granted Critical
Publication of FR2712949B1 publication Critical patent/FR2712949B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/024—Covers or coatings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/055—Stabiliser bars
    • B60G21/0551—Mounting means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
    • F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
    • F16F3/12—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber spring
    • 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
    • B60G2202/20—Type of damper
    • B60G2202/25—Dynamic damper

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The absorbtion device for a torsion bar comprises an absorbing sheath (9) in the form of a flat elastomer enclosing the bar (7). The absorbing filling may be constrained on the bar by a rigid frame (2) which is preformed in the shape of an open cylinder. The cylindrical frame is mounted on the bar and fixed in place by screws, clips or similar fastenings.

Description

DISPOSITIF AMORTISSEUR POUR BARRE DE TORSION
La présente invention concerne un dispositif amortisseur pour barre de torsion, notamment pour suspension d'automobile.SHOCK ABSORBER FOR TORSION BAR
The present invention relates to a shock absorber device for a torsion bar, in particular for an automobile suspension.

Le but de la présente invention est de diminuer les bruits parasites provoqués par un mode de résonance de la barre de torsion. The object of the present invention is to reduce parasitic noise caused by a mode of resonance of the torsion bar.

En cas de mode de résonance gênant de la barre de torsion, on procède habituellement au montage, sur cette barre, d'une masse additionnelle ou d'un batteur accordé. In the event of an annoying resonance mode of the torsion bar, one usually proceeds to mounting, on this bar, an additional mass or a tuned beater.

Ces solutions présentent des inconvénients, respectivement celui d'augmenter la masse de façon importante, ou celui de la difficulté de réglage, du fait de la sensibilité du batteur.These solutions have drawbacks, respectively that of increasing the mass significantly, or that of the difficulty of adjustment, due to the sensitivity of the mixer.

Selon la présente invention, on remédie à ces inconvénients en enserrant la barre de torsion dans un fourreau amortisseur constitué par exemple d'une couche d'élastomère amorti, lui-même avantageusement contraint sur la barre par une armature rigide de forme générale cylindrique. According to the present invention, these drawbacks are remedied by enclosing the torsion bar in a damping sheath consisting for example of a layer of damped elastomer, itself advantageously constrained on the bar by a rigid frame of generally cylindrical shape.

La figure 1 du dessin ci-annexé montre un tel dispositif en position ouverte avant son montage sur une barre de torsion ; et
la figure 2 est une vue en coupe transversale par la ligne 11-11 de la figure 1, de la barre équipée de ce dispositif.Figure 1 of the accompanying drawing shows such a device in the open position before mounting on a torsion bar; and
Figure 2 is a cross-sectional view through line 11-11 of Figure 1, of the bar equipped with this device.

Sur ces figures, le dispositif est référencé globalement en 1 ; il est constitué d'une armature rigide en tôle 2 revêtue intérieurement d'une couche d'élastomère amortisseur 3 constituant ce que l'on a appelé plus haut le "fourreau", l'armature ayant à l'état ouvert la forme de deux cannelures semi-cylindriques reliées par des pattes de pliage 4 et comportant extérieurement des pattes de fixation 5 percées de trous 6. Ce dispositif peut ainsi être commodé ment monté sur la barre de torsion 7, puis y être assujetti par des ensembles vis-écrou 8, 9 ou analogues, les vis étant engagées dans les trous 6 des pattes. Ce mode de fixation à vis pourrait être remplacé par un clipsage ou tout autre moyen. En tout cas, le dimensionnement du dispositif est tel qu'après fixation il enserre la barre 7. In these figures, the device is referenced globally at 1; it consists of a rigid sheet metal frame 2 internally coated with a layer of shock-absorbing elastomer 3 constituting what has been called above the "sheath", the frame having in the open state the shape of two semi-cylindrical grooves connected by folding tabs 4 and externally comprising fixing tabs 5 pierced with holes 6. This device can thus be conveniently mounted on the torsion bar 7, then be secured thereto by screw-nut assemblies 8 , 9 or the like, the screws being engaged in the holes 6 of the tabs. This method of screw fixing could be replaced by clipping or any other means. In any case, the dimensioning of the device is such that after fixing it encloses the bar 7.

L'armature 2 peut être obtenue par tout moyen approprié, par exemple en étant emboutie et découpée dans une tôle plate mince, préformée en "cylindre ouvert" de façon à ce que l'ouverture permette l'engagement autour de la barre 7, ou encore surmoulée d'élastomère, avec ou sans adhésion. The frame 2 can be obtained by any suitable means, for example by being stamped and cut from a thin flat sheet, preformed into an "open cylinder" so that the opening allows engagement around the bar 7, or still overmolded with elastomer, with or without adhesion.

On obtient ainsi un amortissement efficace des résonances de la barre susceptibles de produire du bruit dans le véhicule. La solution proposée par l'invention est simple et de faible coût.  This results in effective damping of the resonances of the bar likely to produce noise in the vehicle. The solution proposed by the invention is simple and low cost.

Claims (7)

REVENDICATIONS 1. Dispositif amortisseur pour barre de torsion, notamment pour suspension d'automobile, caractérisé en ce qu'il comporte un fourreau (9) amortisseur enserrant ladite barre (7). 1. Damping device for torsion bar, in particular for automobile suspension, characterized in that it comprises a sheath (9) damping enclosing said bar (7). 2. Dispositif selon la revendication 1, caractérisé en ce que ledit fourreau (3) est constitué d'une couche d'élastomère amorti. 2. Device according to claim 1, characterized in that said sheath (3) consists of a layer of cushioned elastomer. 3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que ledit fourreau (3) amortisseur est contraint sur la barre (7) par une armature rigide (2) de forme générale cylindrique. 3. Device according to claim 1 or 2, characterized in that said sheath (3) damper is constrained on the bar (7) by a rigid frame (2) of generally cylindrical shape. 4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite armature (2) est emboutie et découpée dans une tôle plate mince. 4. Device according to any one of the preceding claims, characterized in that said frame (2) is stamped and cut from a thin flat sheet. 5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite armature (2) est préformée en "cylindre ouvert" de façon à ce que l'ouverture permette l'engagement autour de la barre (7). 5. Device according to any one of the preceding claims, characterized in that said frame (2) is preformed into an "open cylinder" so that the opening allows engagement around the bar (7). 6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite armature (2) est surmoulée d'élastomère, avec ou sans adhésion. 6. Device according to any one of the preceding claims, characterized in that said frame (2) is overmolded with elastomer, with or without adhesion. 7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite armature (2) est montée et refermée sur la barre (7) et fixée sur celleci par vissage, clipsage ou analogue.  7. Device according to any one of the preceding claims, characterized in that said armature (2) is mounted and closed on the bar (7) and fixed to it by screwing, clipping or the like.
FR9313942A 1993-11-22 1993-11-22 Damping device for torsion bar. Expired - Fee Related FR2712949B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9313942A FR2712949B1 (en) 1993-11-22 1993-11-22 Damping device for torsion bar.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9313942A FR2712949B1 (en) 1993-11-22 1993-11-22 Damping device for torsion bar.

Publications (2)

Publication Number Publication Date
FR2712949A1 true FR2712949A1 (en) 1995-06-02
FR2712949B1 FR2712949B1 (en) 1996-01-26

Family

ID=9453101

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9313942A Expired - Fee Related FR2712949B1 (en) 1993-11-22 1993-11-22 Damping device for torsion bar.

Country Status (1)

Country Link
FR (1) FR2712949B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10132379A1 (en) * 2001-07-06 2003-01-16 Zf Lemfoerder Metallwaren Ag Rubber bearings, preferably stabilizer bearings, and method for mounting the bearing
DE102005028621A1 (en) * 2005-06-20 2006-12-28 B & T Exact Gmbh Stabilizing bearing for linking of stabilizer at motor vehicle body has first and second half shell which consists of one flexible deformable outer dampening bowl and internal attachment bowl is attached to stabilizer

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1091672A (en) * 1953-06-05 1955-04-14 Damped springs
FR1116123A (en) * 1953-06-19 1956-05-04 Gomma Antivibranti Applic Anti-vibration protective coating for components subjected to alternating forces
DE1777120U (en) * 1956-02-02 1958-11-06 Carl-Eberhard Neidhart SPRING, IN PARTICULAR COIL SPRINGS AND BAR SPRINGS.
FR77392E (en) * 1960-03-21 1962-02-23 New simplified manufacturing processes for <mixed> springs and new industrial products resulting therefrom
US3130700A (en) * 1960-04-29 1964-04-28 Robert E Peterson Vibration and mechanical wave damping
DE2143267A1 (en) * 1971-08-30 1973-03-08 Gummi Kueper Kg DEVICE FOR ELASTIC AND SOUND-INSULATING FIXING OF VIBRATING SYSTEMS
US3826339A (en) * 1973-09-07 1974-07-30 H Brokaw Vibration damper for elongate members
FR2564043A1 (en) * 1984-05-09 1985-11-15 Rech Ressorts Centre Device for laterally retaining the stabilising bars for the suspension of a motor vehicle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1091672A (en) * 1953-06-05 1955-04-14 Damped springs
FR1116123A (en) * 1953-06-19 1956-05-04 Gomma Antivibranti Applic Anti-vibration protective coating for components subjected to alternating forces
DE1777120U (en) * 1956-02-02 1958-11-06 Carl-Eberhard Neidhart SPRING, IN PARTICULAR COIL SPRINGS AND BAR SPRINGS.
FR77392E (en) * 1960-03-21 1962-02-23 New simplified manufacturing processes for <mixed> springs and new industrial products resulting therefrom
US3130700A (en) * 1960-04-29 1964-04-28 Robert E Peterson Vibration and mechanical wave damping
DE2143267A1 (en) * 1971-08-30 1973-03-08 Gummi Kueper Kg DEVICE FOR ELASTIC AND SOUND-INSULATING FIXING OF VIBRATING SYSTEMS
US3826339A (en) * 1973-09-07 1974-07-30 H Brokaw Vibration damper for elongate members
FR2564043A1 (en) * 1984-05-09 1985-11-15 Rech Ressorts Centre Device for laterally retaining the stabilising bars for the suspension of a motor vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10132379A1 (en) * 2001-07-06 2003-01-16 Zf Lemfoerder Metallwaren Ag Rubber bearings, preferably stabilizer bearings, and method for mounting the bearing
US7025344B2 (en) 2001-07-06 2006-04-11 ZF Lemförder Metallwaren AG Rubber bearing, preferably a stabilizing bearing, and method for mounting this bearing
DE102005028621A1 (en) * 2005-06-20 2006-12-28 B & T Exact Gmbh Stabilizing bearing for linking of stabilizer at motor vehicle body has first and second half shell which consists of one flexible deformable outer dampening bowl and internal attachment bowl is attached to stabilizer

Also Published As

Publication number Publication date
FR2712949B1 (en) 1996-01-26

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Effective date: 20060731