EP2288818A1 - Joint tripode pour arbre à cardan d'un véhicule automobile et arbre à cardan - Google Patents

Joint tripode pour arbre à cardan d'un véhicule automobile et arbre à cardan

Info

Publication number
EP2288818A1
EP2288818A1 EP09753958A EP09753958A EP2288818A1 EP 2288818 A1 EP2288818 A1 EP 2288818A1 EP 09753958 A EP09753958 A EP 09753958A EP 09753958 A EP09753958 A EP 09753958A EP 2288818 A1 EP2288818 A1 EP 2288818A1
Authority
EP
European Patent Office
Prior art keywords
tripod joint
tripod
shaft
joint
motor vehicle
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Withdrawn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
EP09753958A
Other languages
German (de)
English (en)
Inventor
Uwe Neunzig
Luis Hoeks
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.)
Neapco Europe GmbH
Original Assignee
Neapco Europe GmbH
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 Neapco Europe GmbH filed Critical Neapco Europe GmbH
Publication of EP2288818A1 publication Critical patent/EP2288818A1/fr
Withdrawn legal-status Critical Current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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
    • F16D3/205—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
    • F16D3/2055—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having three pins, i.e. true tripod joints
    • 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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections

Definitions

  • the present invention is a novel use of a known tripod joint, a tripod joint for the propeller shaft of a rear-wheel drive vehicle and a propeller shaft for a. rear-wheel drive vehicle, which is based on a tripod joint according to the invention.
  • Drive shafts are used to transmit a drive torque generated by a drive engine, for example an internal combustion engine, to drive wheels of a motor vehicle.
  • a cardan shaft such waves are usually referred to transmit the drive torque in the longitudinal direction of the vehicle.
  • Widely used is a configuration in which the internal combustion engine of the motor vehicle is arranged in the front region, but the drive torque of the internal combustion engine is transmitted via the rear wheels to the ground.
  • a propeller shaft extends between the output shaft of the transmission of the motor vehicle, which is usually also arranged in the front region of the motor vehicle, to a rear differential, with the two output shafts, the two driven rear wheels of the motor vehicle are rotatably connected.
  • Cardan shafts are also used in all-wheel drive vehicles, in which the drive motor of the motor vehicle can be arranged both in the front and in the rear area.
  • propeller shafts must be designed to compensate for at least one variable parallel offset between the output shaft of the transmission and the input shaft of the rear differential.
  • This resilient suspension usually still requires a length compensation within the propeller shaft.
  • propeller shafts which comprise two universal joints, of which the first universal joint to the output shaft of the transmission and the second universal joint are connected to the input side of the rear differential. Between the universal joints extends a connecting shaft, in which a device for length compensation can be integrated.
  • ball joints are used instead of two universal joints, wherein on the transmission side, for example, a spherical handle is used by the cross-groove type, which also offers the possibility of a limited length compensation in addition to an angle compensation.
  • a ball joint without length compensation can be used, for example a ball joint of the Rzeppa type.
  • a rigid connecting shaft in which no device for length compensation must be integrated because the cross-groove joint already has the ability to compensate for length.
  • Object of the present invention is therefore to provide a rotary joint, which has a particular suitability for use in a propeller shaft of a motor vehicle.
  • a low-cost propeller shaft to be specified with advantageous tracking characteristics for a motor vehicle.
  • An inventive tripod joint for the cardan shaft of a motor vehicle comprises a tripod star, which forms a plurality of cylindrical pins with a round cross section. Furthermore, it comprises a plurality of roller bearings, for example with a cylindrical inner ring, which are supported by the pins of the tripod star. The bearings are displaceable on the pins of the tripod in the direction of the respective pin axis. Finally, the tripod joint comprises a tulip (ie an outer joint) which has a plurality of axially extending raceways. In each raceway each supported by a pin bearing is mounted displaceably in the axial direction.
  • the shape of the raceway and the outer ring of the bearing guided to it are adapted to each other, that the rolling bearing in the raceway continue can perform a Abwi ⁇ kelmos.
  • this bending movement is typically limited to a critical angle of 15 °, often also to significantly lower values such as 10 ° or even 5 °.
  • the tripod star is non-rotatably connected to an intermediate shaft, wherein the intermediate shaft has a first connection piece for connecting a drive or output shaft.
  • the tulip is rotatably connected to a second connector, which in turn is provided for connection to a drive or output shaft.
  • the intermediate shaft via the first connector rotatably connected to the output shaft of the engine-side transmission of the motor vehicle.
  • the tulip in contrast, can be non-rotatably connected via the second connecting piece to a connecting shaft, which can extend, for example, directly to a rear differential of the motor vehicle.
  • the tripod joint according to the invention can be integrated in the simplest way in a multi-component cardan shaft and has excellent synchronization properties. It is mechanically simple and therefore inexpensive to manufacture. Nevertheless, its synchronous characteristics are so good that the generation of disturbing noises or vibrations can be safely avoided even at high speeds / speeds.
  • first connector of the tripod joint according to the invention is releasably connected to intermediate shaft, for example via splines.
  • second connector may also be releasably connected to the tulip, again, a connection via splines is advantageous.
  • mountability or interchangeability of the tripod joint according to the invention when the tripod star is in turn releasably connected to the intermediate shaft, which also rotatable connection can be advantageously realized via splines.
  • the intermediate shaft will be formed as a solid shaft, a training as a hollow shaft is also conceivable and has weight technical advantages.
  • the first connecting piece may be formed integrally with the intermediate shaft, for example, forged or formed by forming such as kneading.
  • this has a shaft portion which forms a bearing seat on which a roller bearing for pivotal mounting of the tripod joint on the motor vehicle is arranged, for example, for pivotal mounting within the housing of the motor (shift or automatic transmission.
  • this section of shaft can be formed on the intermediate shaft of the tripod joint or on a wave extension of the tulip
  • the detachable connection of the first connection piece and / or the tripod star with the intermediate shaft and the second connection piece with the tulip has a positive effect easy mounting of the bearing is given on the bearing seat.
  • the vibration behavior of the tripod joint according to the invention or of a propeller shaft realized using the tripod joint can continue be positively influenced if between the tripod joint and motor vehicle in the region of the rolling bearing, a vibration damping element is arranged based for example on a rubber-elastic material.
  • a rubber disc or a hardy disc may be mentioned here.
  • the tripod joint allows an angling of at least 3 °, preferably 5 °, but in particular up to 10 °. In most cases, however, an angling of a maximum of 5 ° is sufficient.
  • the tripod joint should have a torque capacity of at least 750 Nm, preferably of 1,500 Nm and in particularly high-drive vehicles of up to 2,500 Nm. As a rule, however, a torque capacity of 1,500 Nm is sufficient.
  • the tripod joint should also be designed to be capable of operating up to speeds of at least 5,000 rpm "1 , preferably up to at least 7,500 minutes " 1 .
  • a length compensation capability of at least 10 mm, but preferably up to 20 mm can be provided for special applications, a length compensation of up to 30 mm can be realized, for example in off-road vehicles
  • the entire length compensation range given can be easily realized by means of the indicated tripod joint construction according to the invention
  • a pull-out lock can be provided, which is a falling apart of the tripod joint, for example, during assembly of nachfo Ling described in more detail propeller shaft according to the invention or in their operation in a motor vehicle safely prevented.
  • An inventive propshaft for a rear axle driven motor vehicle for transmitting a drive torque in the longitudinal direction of the motor vehicle comprises a tripod joint according to the invention and a connecting shaft which extends between the tripod joint and, for example, a rear differential.
  • the first connection piece of the tripod joint for connection to a mo- gate-side manual or automatic transmission or transfer case and the second connector of the tripod joint provided for connection to the connecting shaft, or vice versa.
  • a propeller shaft according to the invention may comprise a further rotary joint which is arranged between the connecting shaft and the rear axle differential.
  • a hinge can be, for example, another tripod joint, a ball joint of, for example, the Rzeppa or cross-groove type, a cardan joint or else a hardy disk.
  • the connecting shaft is designed as a hollow shaft.
  • the connecting shaft is advantageously welded to the first or second connecting piece of the tripod joint via a welded seam.
  • common welding methods can be used, in particular a welding by means of laser welding is suitable.
  • a tripod joint with a tripod star, which forms a plurality of cylindrical pin with a round cross section.
  • the tripod joint comprises a plurality of rolling bearings, e.g. with a cylindrical inner ring, which are supported by the pins of the Tripodesterns and are displaceable thereon in the direction of the respective pin axis.
  • the tripod joint comprises a tulip, i. an outer joint having a plurality of axially extending raceway. In each raceway each supported by a pin bearing is mounted displaceably in the axial direction.
  • the outer rings of the bearings and the shape of the raceways are adapted to each other so that the bearings run in the raceway can continue to make a Abwinkelterrorism. Protection is claimed for a use of such a tripod joint for transmitting a drive torque from a drive motor of a motor vehicle to the drive wheels in the longitudinal direction of the motor vehicle by means of a cardan shaft.
  • FIG. 2 is a sectional view of a second embodiment of a tripod joint according to the invention.
  • FIG 3 is a sectional view of a third embodiment of a tripod joint according to the invention.
  • FIG. 1 shows a first exemplary embodiment of a tripod joint 10 according to the invention for a propshaft 1.
  • the installation position of the tripod joint 10 is indicated by arrows indicating the position of the rear differential in the motor vehicle and the motor-side shift transmission, on the other hand imply
  • the tripod joint 10 comprises a tulip 12, i. an outer joint, in which three running in the direction of rotation of the tripod joint 10 raceways 20 are formed.
  • these raceways 20 run in the axial direction of bearings 16, which are supported by the three pins 18 of the inside of the tulip 12 arranged Tripodesterns 14.
  • the rolling bearings 30 in the illustrated embodiment only an outer ring 30 and a plurality of needles 32, the inner race of the rolling bearing 16 is formed by the cylindrical outer surface of the pins 18 of the tripod star 14 itself.
  • the outer ring 30 of the rolling bearing 16 along the pin axis of the pin 18 carrying it is displaceable.
  • the sliding movement of the rolling bearing 16 on the pin 18 of the tripod star 14 is limited by a arranged on the outer end of the pin 18 locking member 33 to prevent disintegration of the bearings 16 during assembly of the tripod joint 10.
  • the blocking element 33 for example, consist of a stamped sheet metal part.
  • the shape of the raceways 20 and the outer surface of the outer rings 30 is adapted to each other so that the outer rings 30 in the raceways 20 not only in the direction of the axis of rotation of the tripod joint 10, that can move in the longitudinal direction. Rather, a limited tilting movement of the outer rings 30 in the raceways 20 is additionally possible.
  • This will be an angled Rotary movement of the Eina ⁇ gsseite the tripod joint 10 against the output side up to a maximum Abknickwinkel possible.
  • This maximum bending angle is typically in the range of a maximum of 10 °, in the embodiment shown, it is preferably about 5 °.
  • the Tripodestern 14 is supported by an intermediate shaft 22, with which it is rotatably connected via splines 24. Furthermore, the tripod star 14 is secured on the intermediate shaft 22 via a securing clip 34, wherein the securing clip 34 can be actuated for mounting or dismounting via windows in the tulip 12 (not shown).
  • the interior of the tulip 12 with the rolling bearings 16 arranged therein is protected against the ingress of soiling by means of a sleeve 26 which is fixed by means of clamps 36 both on the outer circumference of the tulip 12 and on the outer periphery of the intermediate shaft 22. Furthermore, the sleeve 26 forms an integrally formed pull-out barrier 28, whose inner diameter is smaller than the inner diameter of the raceways 20.
  • the outer rings 30 of the rolling bearing 16 are at a withdrawal of the intermediate shaft 22 with it fixed Tripodestern 14 from the interior of the tulip 12 to the plant the pull-out lock 28 arrive, whereby their movement is limited.
  • the pull-out shutters 28 are formed of the same material as the sleeve 26, with this material being e.g. can be an oil-resistant synthetic rubber. Furthermore, it is possible to increase the pull-out forces a metal insert, not shown in Figure 1, e.g. in the form of a rigid part into the sleeve 26 or the pull-out lock 28.
  • the intermediate shaft 22 forms a first connection piece 40.
  • the transmission-side end of a connecting shaft 50 designed as a hollow shaft is welded, for example by means of a laser welding method.
  • the connecting shaft 50 may, for example, be connected to a suitable fitting of a Rzeppa-type ball joint, but it may also be connected directly to the input shaft or shaft a gear engaging in the ring gear of a Schuachsdifferentials rotatably connected, for example by means of welding or splines.
  • the tulip 12 of the tripod joint 10 forms a wave extension 13 at its end remote from the drive, whose outer circumferential surface is provided with splines 44.
  • a second connector 42 is pushed, which has internal complementary splines 44, so that there is a rotationally fixed connection between the second connector 42 and the shaft extension 13 of the tulip 12.
  • Both the second connecting piece 42 and the shaft extension 13 have a through hole 15, which can be used to secure the second connecting piece 42 by screwing on the shaft extension 13.
  • the through-bore 15 opens into the interior of the tulip 12 and widens there to form a cylindrical centering receptacle, which is intended to serve for a post-processing of the tulip 12 as a receptacle.
  • a turning of the outer peripheral surface of the tulip 12 for example, after finishing of the raceways 20 may be useful to reduce any remaining imbalance of the tulip 12 about the axis of rotation of the tripod joint 10.
  • the second connecting piece 42 is connected to the output shaft 60, for example, a gearbox of the motor vehicle, wherein the output shaft 60, for example by means of a laser welding process with the second connector 42 rotatably and captively connected.
  • the tripod joint 10 according to the invention can also be retrofitted into existing cardan shafts 1 in a simple manner. If a e.g. newly created propeller shaft 1 equipped with a tripod joint 10 according to the invention, so a simple mountability of the propeller shaft 1 is given in the motor vehicle.
  • the tulip 12 of the tripod joint 10 according to the invention is supported via a roller bearing 70 on a stationary component of the motor vehicle, which may be, for example, the transmission housing of a manual or automatic transmission of the motor vehicle.
  • a stationary component of the motor vehicle which may be, for example, the transmission housing of a manual or automatic transmission of the motor vehicle.
  • FIG. 2 shows a second exemplary embodiment of a tripod joint 10 according to the invention, the structure of the tripod joint 10 with respect to the tulip 12 and the tripod star 14 corresponding to the construction of the tripod joint 10 according to the first exemplary embodiment. Therefore, only the differences between the first and second embodiments will be discussed.
  • the tripod joint 10 according to the second embodiment differs substantially only with respect to the second connector 42 from the structure of the tripod joint 10 according to the first embodiment.
  • the tulip 12 of the tripod joint 10 according to the second embodiment 42 has a shaft extension 13 which is provided on the outside with splines 44.
  • splines 44 engage positively in a complementary formed splines on the inner circumference of a central recess in the second connector 42, whereby a rotationally fixed connection between the tulip 12 and the second connector 42 is made.
  • the second connector 42 is secured to the shaft extension 13 by means of a securing clip 46, which engages in a (not designated) groove on the outer end of the shaft extension 13.
  • This safety clip 46 can be released using a suitable special tool, which is passed through not shown in Figure 2 window in the output shaft 60. Since in the aforementioned construction securing of the second connecting piece 42 on the shaft extension 13 by means of screw connection is not required, the shaft extension 13 can also be designed as a solid shaft.
  • third embodiment of a tripod joint 10 according to the invention corresponds to the structure of the tripod joint 10 shown here with respect to the tulip 12 and the Tripodestern 14 that of the tripod joint 10 according to the first embodiment.
  • the changes essentially relate to the type of rotary mounting of the tripod joint 10 on the motor vehicle, the installation position of the tripod joint 10 in the motor vehicle, and the connection of the connecting shaft 50 and the output shaft 60 to the first and second connecting pieces 40 and 42.
  • the mounting position of the tripod joint 10 is changed in the third embodiment by 180 ° relative to the mounting position according to the first two embodiments. Accordingly, now the intermediate shaft 22 is rotatably supported via a roller bearing 70 on the motor vehicle.
  • the intermediate shaft 22 forms a bearing seat 72, on which the roller bearing 70 can be pushed.
  • the roller bearing 70 is mounted on the intermediate shaft 22 prior to assembly of the tripod star 14.
  • the rolling bearing 70 is enclosed in an elastomeric disk 74 in the third embodiment shown, which in turn is held in a mechanical support, for example in the housing of the gearbox of the motor vehicle (not shown). The insertion of this elastomeric disk 74 ensures a vibration-decoupling of the tripod joint 10 from the motor vehicle and thus reduces the generation of unwanted noise and vibrations in the motor vehicle.
  • the tripod joint 10 is now connected with its first connector 40, which is formed on the intermediate shaft 22, with the output shaft 60 of the example of the transmission of the motor vehicle, for example by means of laser welding.
  • the tulip 12 On the output side, the tulip 12 in turn forms a second connecting piece 42, on which the connecting shaft 50 is plugged.
  • the connecting shaft 50 is non-rotatably connected to the second connecting piece 42 or the tulip 12, for example, by means of welding via a laser welding method.
  • the connecting shaft 50 is always formed as a hollow shaft, it is finally pointed out that the connecting shaft 50 can of course also be designed as a solid shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motor Power Transmission Devices (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

L'invention concerne un joint tripode (10) pour un arbre à cardan (1) d'un véhicule automobile, lequel comprend un tripode (14) qui forme une pluralité de tourillons (18) de section transversale ronde, par exemple. Une pluralité de paliers à roulement (16) est supportée par les tourillons (18) du tripode (14) et peut coulisser sur celui-ci dans la direction de l'axe de tourillon correspondant. Une articulation externe (12) présente une pluralité de chemins de roulement qui s'étendent dans le sens axial et dans lesquels est logé à chaque fois un palier à roulement (16), supporté par un tourillon (18), de manière à pouvoir coulisser dans le sens longitudinal. Les paliers à roulement (16) peuvent en plus à chaque fois exécuter un mouvement de pliage dans le chemin de roulement (20). Le tripode (14) est relié de façon solidaire en rotation avec un arbre intermédiaire (22) qui présente un premier élément de raccordement (40) pour le raccordement à un arbre moteur ou mené (60). De plus, la tulipe (12) est reliée de manière solidaire en rotation avec un deuxième élément de raccordement pour le raccordement à un arbre moteur ou mené (60).
EP09753958A 2008-05-30 2009-05-29 Joint tripode pour arbre à cardan d'un véhicule automobile et arbre à cardan Withdrawn EP2288818A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008026063A DE102008026063A1 (de) 2008-05-30 2008-05-30 Tripodegelenk für Kardanwelle eines Kfz sowie Kardanwelle
PCT/EP2009/056627 WO2009144303A1 (fr) 2008-05-30 2009-05-29 Joint tripode pour arbre à cardan d’un véhicule automobile et arbre à cardan

Publications (1)

Publication Number Publication Date
EP2288818A1 true EP2288818A1 (fr) 2011-03-02

Family

ID=41052480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09753958A Withdrawn EP2288818A1 (fr) 2008-05-30 2009-05-29 Joint tripode pour arbre à cardan d'un véhicule automobile et arbre à cardan

Country Status (3)

Country Link
EP (1) EP2288818A1 (fr)
DE (1) DE102008026063A1 (fr)
WO (1) WO2009144303A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015219464A1 (de) 2015-10-08 2017-04-13 Volkswagen Aktiengesellschaft Tripodegelenk und Längswelle mit einem solchen
DE102016220597A1 (de) 2016-10-20 2018-04-26 Volkswagen Aktiengesellschaft Längswelle für ein Kraftfahrzeug und Verfahren zur Herstellung einer solchen

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GB2015696B (en) * 1978-02-13 1982-08-25 Glaenzer Spicer Sa Homokinetic shaft couplings and applications thereof
FR2527718A1 (fr) * 1982-05-26 1983-12-02 Glaenzer Spicer Sa Transmission permettant de filtrer les vibrations radiales entre l'arbre moteur et l'axe des roues motrices
FR2661228A1 (fr) * 1990-04-18 1991-10-25 Glaenzer Spicer Sa Joint de transmission du type coulissant.
DE4224201C2 (de) * 1992-07-22 1995-02-16 Gkn Automotive Ag Längswelle im Antriebsstrang eines Fahrzeugs
JP2957121B2 (ja) * 1996-02-01 1999-10-04 本田技研工業株式会社 等速ジョイント
US6010409A (en) * 1998-01-15 2000-01-04 Gkn Automotive, Inc. Venting constant velocity joint
DE10208962B4 (de) * 2002-02-28 2004-01-29 Audi Ag Vorrichtung zum Zentrieren eines Gelenkteils
JP2005054879A (ja) * 2003-08-04 2005-03-03 Ntn Corp 等速自在継手
DE112004002352B4 (de) * 2003-12-05 2017-12-07 Gkn Driveline North America, Inc. Gleichlaufverschiebegelenk für eine auf Energieaufnahme abgestimmte Antriebswelle
US7077753B2 (en) * 2003-12-05 2006-07-18 Gkn Driveline North America, Inc. Cross groove hybrid plunging constant velocity joint for a propshaft tuned for energy absorption
DE102004041739B4 (de) * 2004-08-28 2008-10-09 Daimler Ag Abstützeinrichtung für eine Kardanwelle eines Kraftfahrzeugs
DE102005042910B4 (de) * 2005-09-08 2011-08-18 GKN Driveline International GmbH, 53797 Gelenkwelle, umfassend ein Gegenbahngelenk mit begrenzter Axialverschiebung
JP4809045B2 (ja) * 2005-11-30 2011-11-02 株式会社ショーワ プロペラシャフトの衝撃吸収構造

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Also Published As

Publication number Publication date
DE102008026063A1 (de) 2009-12-10
WO2009144303A1 (fr) 2009-12-03

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