WO2006027275A1 - Ensemble pour le reglage d'une force de frottement - Google Patents

Ensemble pour le reglage d'une force de frottement Download PDF

Info

Publication number
WO2006027275A1
WO2006027275A1 PCT/EP2005/009790 EP2005009790W WO2006027275A1 WO 2006027275 A1 WO2006027275 A1 WO 2006027275A1 EP 2005009790 W EP2005009790 W EP 2005009790W WO 2006027275 A1 WO2006027275 A1 WO 2006027275A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
rod
support
torsion spring
arrangement according
Prior art date
Application number
PCT/EP2005/009790
Other languages
English (en)
Inventor
Prat Jaume Terrades
Vidal Jordi Jornet
Original Assignee
Fico Cables, S.A.
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 Fico Cables, S.A. filed Critical Fico Cables, S.A.
Publication of WO2006027275A1 publication Critical patent/WO2006027275A1/fr

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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/02—Vibration-dampers; Shock-absorbers with relatively-rotatable friction surfaces that are pressed together
    • F16F7/06—Vibration-dampers; Shock-absorbers with relatively-rotatable friction surfaces that are pressed together in a direction perpendicular or inclined to the axis of rotation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/08—Friction devices between relatively-movable hinge parts
    • E05D11/082—Friction devices between relatively-movable hinge parts with substantially radial friction, e.g. cylindrical friction surfaces
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
    • F16D7/048—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with parts moving radially between engagement and disengagement
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/536—Hoods
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/538—Interior lids
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/546—Tailgates
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/04—Balancing means

Definitions

  • the present invention relates to an arrangement for adjustment of a friction force on a rotatable shaft or an axially displaceable rod.
  • Such an arrangement can be used for different fields of use, preferably for the attenuation of movements in the automotive field and fulfil the function of hinges, joints or pneumatic springs.
  • the document US 2002/0042971 Al shows a friction hinge for an electronic de ⁇ vice, for example a notebook computer or a PDA, which comprises a sleeve shaped friction element between a rotatable pin and a support body. The friction element is pressed into the support body, wherein the rotatable pin receives a fric- tion force.
  • the rotational movement of the shaft is independent from the adjustment of the torsion spring, such that the movement of the shaft does not influence the adjustment of the torsion spring.
  • the friction effect and thereby the attenuation can be adjusted as desired, and also be later adapted or changed.
  • the adjustment furthermore is done continu ⁇ ously, from fairly small attenuation to strong attenuation.
  • the claimed ar ⁇ rangement is very simple in construction, such that it comprises a high security to failure and is low-cost in production.
  • the shaft can freely rotate with respect to the support. Thereby free pivoting or rotational movements of more than 360° are possible without problems. Arbitrary rotational movements of a shaft can adjustably be decelerated or attenuated.
  • the shaft is additionally axially displaceable with respect to the support. Therefore, the shaft can perform a rotational move ⁇ ment as well as also an axial displacement with respect to the support.
  • the ar ⁇ rangement provides the possibility to simultaneously attenuate rotational move- ments as well as also linear movements with only one single arrangement. This provides various possibilities for the attenuation of mechanical movements, pref ⁇ erably in the automotive field. So, for example the movements of the lid of a glove box or the pivoting movements of a handhold can be attenuated by me- - A -
  • an arrangement for adjusting a friction force comprising a rod, a support for supporting the rod, wherein the rod is axi- ally displaceable with respect to the support, and a helical torsion spring, which is wrapped around the rod, to exert an adjustable friction force to the rod, wherein the torsion spring is adjustably fixed with respect to the support.
  • the rod is additionally rotatable with respect to the support.
  • a combination of rotational and translational movements can simultaneously be attenuated.
  • the support is fixed and the shaft or rod is ro ⁇ tatable and/or axially displaceable.
  • the support is fixed and the shaft or rod can move therein.
  • the shaft or rod is fixed and the support is ro ⁇ tatable and/or axially displaceable.
  • the shaft or rod is fixed and the support moves together with the friction adjustment.
  • the support comprises at least two support bod ⁇ ies, which are arranged in or at a housing.
  • the arrangement further comprises at least one, preferably two adjustment elements, which engage the ends of the torsion spring and which are rotatably arranged for adjusting the tor- sion spring. The adjustment elements therefore act to turn the ends of the torsion spring against each other, whereby the friction force on the shaft or rod can be varied.
  • the adjustment elements are connected with the support bodies or are integrally formed with them. Therefore the adjustment ele ⁇ ments form a unit with the support bodies, such that the torsion spring can be ad ⁇ justed by a turning of the combination of support bodies and adjustment elements against each other. This can for example be done by a manual turning of the sup ⁇ port bodies, such that the adjustment of the attenuation can be done fast and easy and without tools.
  • At least one bearing shell is arranged between the torsion spring and the shaft or the rod.
  • This bearing shell on the one hand serves for an equal distribution of the normal force of the torsion spring to the shaft or rod and on the other hand for the definition of the generated friction forces.
  • the bearing shell preferably consists of a material having a low friction coefficient, such that the movement of the shaft or rod can be performed without jerk and smoothly.
  • the bearing shell extends also between at least one of the support bodies and the shaft or the rod.
  • the bearing shell also serves for an improvement of the slide bearing of the shaft or the rod within the support body.
  • the support body does not have to be made of a material having good slide properties, whereby material costs can be saved.
  • a torsion spring consists of a wire having a square or rectangular section. Therefore, the threads of the torsion spring form a quasi continuos cylindrical inner face, which exerts a normal force particularly uniform to the shaft or the rod. Thereby a wear-off of the torsion spring as well as of the shaft or of the rod is avoided. Furthermore, the friction force can be defined very exactly, since the complete inner surface of the torsion spring particularly uniformly presses against the shaft or the rod.
  • the rod comprises a square, preferably quad- ratic or hexagonal or octagonal section.
  • the rod cannot only have a round section, but if desired and for example no rotational movement is planned, have a square section.
  • the bearing shells are correspond ⁇ ingly formed.
  • Fig. 1 a three-dimensional view of a preferred embodiment of an ar ⁇ rangement according to the invention for adjusting a friction force in assembled condition
  • Fig. 2 a three-dimensional explosionary view of an arrangement of Fig. 1 and a housing including Hd;
  • Fig. 3 a three-dimensional view of a shaft or a rod together with two bear ⁇ ing shells according to a first embodiment
  • Fig. 4 a three-dimensional view of a further embodiment of a shaft or rod with square section together with two suitable bearing shells;
  • Fig. 5 a three-dimensional view of a support body and an inter-connected adjustment element
  • Fig. 6 a three-dimensional view of a torsion spring
  • Fig. 7 a three-dimensional view of a cylindrical housing
  • Fig. 8 a disk-shaped lid, for closing the housing of Fig. 7.
  • Figure 1 shows an arrangement 1, which can be used for adjustment of a friction force on a shaft 10 or a rod 20.
  • the arrangement 1 comprises a shaft 10 or a rod 20, a first support body 30, a second support body 32, a first adjustment element 60, a second adjustment element 62, a torsion spring 40 as well as two bearing shells 70 and 72.
  • the support bodies 30, 32 serve for supporting or bearing the shaft 10 or the rod 20, which is here shown as a shaft 10 or rod 20 having a round section.
  • the shaft 10 or rod 20 can rotate within the support bodies 30, 32, as it is indicated by arrow 80, as well as also be axially displaced, as it is indicated by arrow 85.
  • the torsion spring 40 which is also shown in Fig. 6, has an inner diameter, which can be varied by turning the ends 42, 44 against each other.
  • the torsion spring 40 quasi contracts or expands.
  • the first end 42 of torsion spring 40 is engaged by an axially extending fork 64 of first adjustment element 60.
  • the second end 42 of torsion spring 40 is engaged by a fork 64 (not shown in Fig. 1) of the second adjustment element 62.
  • the adjustment elements 60, 62 thereby can turn the ends 42, 44 of torsion spring 40 against each other, whereby the diameter of the torsion spring 40 is ad ⁇ justed.
  • the adjustment elements 60, 62 themselves can for example be moved by hand or by mechanical, electrical, pneumatic, hydraulic or other suitable means (not shown).
  • Fig. 1 further two bearing shells 70, 72 arc shown, which are arranged between torsion spring 40 and shaft 10 or rod 20. They are preferably made of a material with appropriate friction properties. Suitable materials are for example thermo ⁇ plastic materials (PA, POM, PEEK, PI, PBT), which if desired may comprise a glass fiber part for increasing the strength or a part of PTFE or SO 2 for improving the slide properties.
  • the bearing shells however can also be made of a metal mate ⁇ rial, for example copper, steel or bronze, which can be provided with a PTFE coating if desired.
  • the bearing shells 70, 72 preferably comprise at one end a col ⁇ lar 74 respectively 75, which prevents an axial displacement of the bearing shells 70, 72. It is also possible that the bearing shells 70, 72 comprise a collar 74, 75 at both ends.
  • Figure 3 shows a shaft 10 or rod 20 having a circular section, whereby the shaft 10 or rod 20 is axially displaceable as well as also rotatably supported.
  • shaft 10' or rod 20' comprise a quadratic section, such that they are not able to rotate with respect to the therefore adapted bearing shells 70', 72' but can axially be displaced.
  • shaft 10' or rod 20' with quadratic section, if the bearing shells 70', 72' in turn are rotatably sup- ported within the support bodies 30, 32. If the bearing shells 70', 72' are held ro- tatably fixed with respect to the support bodies 30, 32, the shaft 10' or rod 20' can only be axially displaced in a attenuated manner.
  • the bearing shells 70, 72 are pressed to the surface of the shaft 10 or rod 20 by the torsion spring 40. Consequently, a normal force, i.e. a force perpendicular to the desired movement direction of shaft 10 or rod 20, is generated.
  • the attenuation is adjustable by changing the normal force.
  • the normal force is changed by a diameter variation of torsion spring 40, wherein simply the ends 42, 44 of torsion spring 40 are turned against each other or to each other.
  • the torsion spring 40 acts equally over all threads onto the shaft 10, rod 20, re ⁇ spectively the bearing shells 70, 72.
  • the support bodies 30, 32 are preferably connected with the adjustment elements 60, 62 or are integrally formed with them.
  • the support bodies are cylindrically shaped elements having a suitable opening for receiving the shaft 10 or rod 20.
  • they are rotatably arranged in a housing 70 or an arbitrary other housing.
  • the torsion spring 40 is adjustable in its diameter by a turning of the support bodies 30, 32 to change the friction force on the shaft 10 or the rod 20 in this manner.
  • the support bodies 30, 32 are fixed appropriately, for example by screwing a second housing half or a housing lid onto the housing, which prevents an undesired turning of the support bodies 30, 32.
  • the adjustment elements 60, 62 serve for fixing the torsion spring 40 such that the generated friction force can be introduced into the support bodies 30, 32 and therefore into the housing 50.
  • the housing 50 preferably comprises a cylindrical shape, having a cylindri ⁇ cal inner opening 55 into which an arrangement 1 according to fig. 1 can axially be inserted.
  • the diameter of the opening 55 is preferably formed such that the support bodies 30, 32 cannot turn against each other in an undesired way. This can for example be achieved in that a slight press fit of the support bodies 30, 32 is provided within opening 55, or for example in that the support bodies 30, 32 com ⁇ prise a toothing at their outer side (not shown) which corresponds with a toothing (not shown) at the inner side of opening 55.
  • the housing 50 For assembly of the arrangement according to fig. 1 in the housing 50, first the first support body 30 is inserted into opening 55, then the second support body 32 is turned with respect to housing 50 until the desired friction effect is achieved and then the second support body 32 is inserted into opening 55. After that, the housing 50 is closed by a Hd 52 according to fig. 7. To this end, preferably screws or similar mounting means are screwed into the openings 56 and 57. Other mount ⁇ ing possibilities as clips etc. to fix the Hd 52 at housing 50 are of course possible.
  • housing 50 For mounting of housing 50 at the desired element it can be provided with mount ⁇ ing flaps 54.
  • the Hd 52 preferably comprises a suitable passage 58, through which the shaft 10 or the rod 20 can extend.
  • mounting elements 59 at the Hd 52 can be provided for mounting the housing 50 including Hd 52 at the desired ele ⁇ ment.
  • An arrangement 1 according to the invention can be used to brake down or to at ⁇ tenuate any kind of rotational movements or axial movements of two elements to each other by means of an adjustable friction force. So, for example, the bearing bodies 30, 32 could be mounted at the dash board of a motor vehicle and the rod 20 at the lid of a glove box. With such an arrangement, the glove box does not immediately open, but with an attenuated slow motion such that injuries are avoided.
  • the arrangement 1 could also be integrated into any other kind of joints, to gener- ate such an attenuated motion.
  • This could for example be the rotational joints of a parking brake lever or of pedals and also the rotational joints of fold-away hand ⁇ holds or sun visors.
  • the attenuation of a linear motion by means of arrangement 1 could be used for the height adjustment of headrests in a motor vehicle seat. Fur ⁇ ther, the lids of armrests or other compartments can be opened or closed in an attenuated manner. .

Abstract

La présente invention se rapporte à un ensemble (1) permettant le réglage d'une force de frottement, et comprenant un arbre (10), un support (30, 32) conçu pour supporter l'arbre (10), ledit arbre (10) ayant la possibilité de tourner par rapport au support (30, 32), et un ressort de torsion hélicoïdal (40) qui est entouré autour de l'arbre (10) de manière à exercer une force de frottement réglable sur l'arbre (10), ledit ressort de torsion (40) étant fixé de manière réglable par rapport au support (30, 32). Il est également possible d'utiliser une tige mobile axialement (20) à la place d'un arbre rotatif (10).
PCT/EP2005/009790 2004-09-10 2005-09-12 Ensemble pour le reglage d'une force de frottement WO2006027275A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410043899 DE102004043899A1 (de) 2004-09-10 2004-09-10 Anordnung zur Einstellung einer Reibungskraft
DE102004043899.4 2004-09-10

Publications (1)

Publication Number Publication Date
WO2006027275A1 true WO2006027275A1 (fr) 2006-03-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/009790 WO2006027275A1 (fr) 2004-09-10 2005-09-12 Ensemble pour le reglage d'une force de frottement

Country Status (2)

Country Link
DE (1) DE102004043899A1 (fr)
WO (1) WO2006027275A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101841105A (zh) * 2010-04-01 2010-09-22 力柏时代锂动力科技（北京）有限公司 车用电接头
EP2333909A1 (fr) * 2009-12-11 2011-06-15 Radiall Ensemble de connexion
FR2954006A1 (fr) * 2009-12-11 2011-06-17 Radiall Sa Ensemble de connexion.
US9719285B2 (en) 2014-08-11 2017-08-01 Suspa Gmbh Damping hinge for damping a hinge rotational movement about a hinge rotational axis
EP3103555B1 (fr) * 2015-06-12 2018-05-09 Sigma Laborzentrifugen GmbH Centrifugeuse de laboratoire dotée d'un dispositif d'amortissement
WO2020005279A1 (fr) * 2018-06-29 2020-01-02 Safran Seats Usa Llc Ensemble bras d'embrayage à ressort

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015013322B3 (de) * 2015-10-14 2016-12-22 Audi Ag Ladeboden für einen Gepäckraum eines Fahrzeuges
DE102020126201B3 (de) 2020-10-07 2021-07-22 Otto Ganter Gmbh & Co. Kg Normteilefabrik Friktionsscharnier

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US2793515A (en) * 1955-05-20 1957-05-28 Ampatco Lab Corp Clutch
US3249180A (en) * 1961-08-15 1966-05-03 Torossian Edouard Longitudinal locking device for cylindrical rods or shafts
GB2247915A (en) * 1990-09-15 1992-03-18 Edward Dean Door safety device
JPH07259877A (ja) * 1994-03-22 1995-10-09 Nippon Seiko Kk トルクリミッタ
DE19517485A1 (de) * 1995-05-12 1996-11-14 Bayerische Motoren Werke Ag Schraubenfeder

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US2429383A (en) * 1945-01-04 1947-10-21 Arens Controls Releasable locking mechanism for reciprocable control
US2862229A (en) * 1952-02-07 1958-12-02 Charles R Bacca Spring tensioned radially compressible and longitudinally extensible sectional clamp sleeve
DE20305291U1 (de) * 2003-04-01 2003-06-18 Schneider Eng Gmbh Schwenklager für eine Klappe, insbesondere für die Klappe vor einem Tankverschluss in einem Kraftfahrzeug

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793515A (en) * 1955-05-20 1957-05-28 Ampatco Lab Corp Clutch
US3249180A (en) * 1961-08-15 1966-05-03 Torossian Edouard Longitudinal locking device for cylindrical rods or shafts
GB2247915A (en) * 1990-09-15 1992-03-18 Edward Dean Door safety device
JPH07259877A (ja) * 1994-03-22 1995-10-09 Nippon Seiko Kk トルクリミッタ
DE19517485A1 (de) * 1995-05-12 1996-11-14 Bayerische Motoren Werke Ag Schraubenfeder

Non-Patent Citations (1)

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Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 02 29 February 1996 (1996-02-29) *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2333909A1 (fr) * 2009-12-11 2011-06-15 Radiall Ensemble de connexion
FR2954007A1 (fr) * 2009-12-11 2011-06-17 Radiall Sa Ensemble de connexion
FR2954006A1 (fr) * 2009-12-11 2011-06-17 Radiall Sa Ensemble de connexion.
CN102185219A (zh) * 2009-12-11 2011-09-14 雷迪埃公司 连接组件
US8303328B2 (en) 2009-12-11 2012-11-06 Radiall Connection assembly
CN101841105A (zh) * 2010-04-01 2010-09-22 力柏时代锂动力科技（北京）有限公司 车用电接头
CN101841105B (zh) * 2010-04-01 2012-06-20 力柏时代锂动力科技（北京）有限公司 车用电接头
US9719285B2 (en) 2014-08-11 2017-08-01 Suspa Gmbh Damping hinge for damping a hinge rotational movement about a hinge rotational axis
EP3103555B1 (fr) * 2015-06-12 2018-05-09 Sigma Laborzentrifugen GmbH Centrifugeuse de laboratoire dotée d'un dispositif d'amortissement
WO2020005279A1 (fr) * 2018-06-29 2020-01-02 Safran Seats Usa Llc Ensemble bras d'embrayage à ressort
US11365009B2 (en) 2018-06-29 2022-06-21 Safran Seats Usa Llc Spring clutch arm assembly

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