WO2011059010A1 - Rétracteur de ceinture de sécurité - Google Patents

Rétracteur de ceinture de sécurité Download PDF

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Publication number
WO2011059010A1
WO2011059010A1 PCT/JP2010/070045 JP2010070045W WO2011059010A1 WO 2011059010 A1 WO2011059010 A1 WO 2011059010A1 JP 2010070045 W JP2010070045 W JP 2010070045W WO 2011059010 A1 WO2011059010 A1 WO 2011059010A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
shaft
spindle
seat belt
holder
Prior art date
Application number
PCT/JP2010/070045
Other languages
English (en)
Japanese (ja)
Inventor
英二 前村
幸則 緑川
Original Assignee
オートリブ ディベロップメント エービー
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 オートリブ ディベロップメント エービー filed Critical オートリブ ディベロップメント エービー
Priority to JP2011540528A priority Critical patent/JP5648924B2/ja
Publication of WO2011059010A1 publication Critical patent/WO2011059010A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/341—Belt retractors, e.g. reels comprising energy-absorbing means
    • B60R22/3413—Belt retractors, e.g. reels comprising energy-absorbing means operating between belt reel and retractor frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
    • B60R2022/4666—Reels with means to tension the belt in an emergency by forced winding up characterised by electric actuators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
    • B60R2022/468—Reels with means to tension the belt in an emergency by forced winding up characterised by clutching means between actuator and belt reel

Definitions

  • the present invention relates to a seatbelt retractor, and more particularly, to a seatbelt retractor including an electric actuator and an explosive pretensioner mechanism.
  • the state of sudden deceleration of the vehicle is detected by a sensor, and the spindle is rotated in the winding direction by a motor.
  • the seat belt (webbing) is wound up to a certain amount to restrain the passenger lightly, and at the time of collision, the explosive pretensioner mechanism is activated to force the seat belt.
  • the occupant is securely held (for example, see Patent Documents 1 and 2).
  • the occupant's body becomes an obstacle and basically the seat belt cannot be wound around the spindle any more.
  • the motor further rotates in the winding direction to wind up the seat belt, the seat belt tightens the occupant with an excessive force, which is not preferable.
  • the gear mechanism that transmits the power from the motor to the spindle when the tensile force is applied to the seat belt has a load greater than a predetermined value ( The so-called “overload”) acts.
  • Cited Documents 1 and 2 in order to prevent the seat belt from tightening the occupant with an excessive force and to prevent a load exceeding a predetermined value from acting on the gear mechanism, the spring pawl constituting the torque limiter mechanism is clutched. It is coaxially arranged on the outer diameter side of the mechanism.
  • An object of the present invention is to provide a seatbelt retractor capable of preventing a load of a predetermined value or more from acting on a mechanism and reducing the radial dimension.
  • a spindle for winding the seat belt; An electric actuator that generates power to rotate the spindle; An explosive pretensioner mechanism that acts on the spindle to retract the seat belt; A power transmission mechanism for transmitting power from the electric actuator to the spindle; A seat belt retractor comprising: The power transmission mechanism is A clutch capable of interrupting power transmission from the electric actuator to the spindle when the pretensioner mechanism is activated; A gear mechanism that has at least a first gear mechanically coupled to the electric actuator and a second gear mechanically coupled to the clutch, and transmits power from the electric actuator to the clutch; A torque limiter that allows a relative idle rotation between the first gear and the second gear when a torque difference exceeding a predetermined value occurs between the first gear and the second gear; A first shaft to which the first gear is attached and a second shaft that is arranged coaxially with the first shaft and to which the second gear is attached are located on a rotation axis different from the spindle.
  • the seat belt retractor (2) The seat belt retractor according to (1), wherein the second gear constitutes a worm gear.
  • the torque limiter includes a first holder, a second holder, and an urging member.
  • the first holder is provided at one end of the first shaft to which the first gear is attached, and constitutes a first gear assembly together with the first shaft and the first gear
  • the second holder is provided at one end portion of the second shaft to which the second gear is attached and meshes with the first holder, and the second gear assembly is coupled with the second shaft and the second gear.
  • the seat belt retractor of the present invention when the seat belt is wound up by a certain amount by the motor and the occupant is lightly restrained, the seat belt is prevented from being tightened by an excessive force by the torque limiter and the gear mechanism is used. It is possible to prevent a load exceeding a predetermined value from acting. Further, since the first shaft to which the first gear is attached and the second shaft that is arranged coaxially with the first shaft and to which the second gear is attached are located on a rotation axis different from the spindle, the seat belt retractor The radial dimension can be reduced.
  • FIG. 5 is a diagram for explaining a state in which the pretensioner mechanism is activated from the state of FIG. 4 and the pawl is repelled by the clutch housing.
  • FIG. (A) is a schematic diagram of the torque limiter in a state where the first holder and the second holder are engaged when the torque limiter is not operated, and (b) is a view taken along the line AA in (a). It is the schematic of the torque limiter of the state which became the non-engagement of the 1st holder and the 2nd holder at the time of a torque limiter action
  • a seat belt retractor 10 of this embodiment includes a spindle 12 that winds up a seat belt (not shown), and a winding spring device 13 that biases the spindle 12 in the seat belt winding direction.
  • a lock mechanism (not shown) that locks the seat belt pull-out operation in accordance with acceleration detected by an acceleration sensor (not shown), and a motor 34 that is an electric actuator that generates power for rotating the spindle 12.
  • a pretensioner mechanism 15 that generates other power for rotating the spindle 12, and a power transmission mechanism 19 that can transmit power from the motor 34 to the spindle 12.
  • the spindle 12 is rotatably supported by the retractor frame 11 at both ends. Further, in the spindle 12, a tread head (not shown) is connected to the spindle 12 on one end side (left end side in FIG. 1), and the force from the pretensioner mechanism 15 is input on the other end side (right end side in FIG. 1). A torsion bar (not shown) connected to the figure is provided.
  • the pretensioner mechanism 15 and the spring device 13 are attached to the right side surface of the retractor frame 11 in the drawing.
  • the pretensioner mechanism 15 strongly pushes the ball (not shown) by the gas generated by igniting the explosive, and the ball moves along the groove of the pinion (not shown).
  • the rotation of the pinion is transmitted to the tread head, the torsion bar, and the spindle 12 through the lock mechanism.
  • a clutch 61 capable of interrupting power transmission from the motor 34 to the spindle 12 when the pretensioner mechanism 15 is operated.
  • a power transmission mechanism including a gear mechanism 60 that transmits power to the clutch 61 and a torque limiter 70 that allows relative idle rotation between gears in the gear mechanism 60 in accordance with a torque difference between the motor 34 side and the spindle 12 side.
  • a space for accommodating 19 is formed.
  • the motor assembly 16 located below the retractor frame 11 includes a motor case 31, a motor 34, a cap 37, and a motor gear 35.
  • the motor gear 35 is attached to the rotating shaft of the motor 34 and meshes with the first gear 54 of the gear mechanism 60.
  • the gear mechanism 60 includes a first gear 54 that is attached to the first shaft 55a and meshes with the motor gear 35, a second gear 56 that is attached to a second shaft 55b that is coaxially arranged with the first shaft 55a, and the spindle 12. And a final gear 58 which is formed on the outer peripheral surface of the gear wheel 57 provided on the same rotation axis a and meshes with the second gear 56.
  • the second gear 56 is a screw gear
  • the final gear 58 is a helical gear
  • the second gear 56 and the final gear 58 constitute a worm gear.
  • the rotation axis b of the first shaft 55 a and the second shaft 55 b is located on a rotation axis different from the rotation axis a of the spindle 12. That is, the rotation axis b of the first shaft 55a and the second shaft 55b and the rotation axis a of the spindle 12 are not in the same plane but are in a so-called twisted position.
  • a torque limiter 70 is provided on the power transmission path between the first gear 54 and the second gear 56, and the torque difference between the first gear 54 and the second gear 56 is reduced. If it is equal to or less than the predetermined value, the power from the motor 34 is transmitted from the first gear 54 to the second gear 56 via the torque limiter 70, and is transmitted from the second gear 56 to the final gear 58. On the other hand, when the torque difference between the first gear 54 and the second gear 56 exceeds a predetermined value, power transmission from the first gear 54 to the second gear 56 is interrupted by the torque limiter 70.
  • a first holder 71 is attached to one end (upper end in FIG. 7A) of the first shaft 55a by, for example, press fitting, and the first gear 54 is spline-fitted to the other side (downward in FIG. 7A), for example.
  • the first gear 54, the first shaft 55 a, and the first holder 71 rotate together to form a first gear assembly 72.
  • a first shaft 55a is rotatably supported on the outer gear case 26 by bearings 73a and 73b.
  • a second holder 74 is attached to one end (the lower end in FIG. 7A), for example, by press fitting, and the second gear 56 is, for example, a spline fit on the other side (upper in FIG. 7A).
  • the second gear assembly 75 is urged toward the first gear assembly 72 by a disc spring 76 as an urging member, and is supported by the outer gear case 26 so as to be movable in the axial direction and rotatable by a bearing 77 and a support plate 78.
  • a disc spring 76 as an urging member
  • a bush 79, a thrust restraining member 80, and a disc spring 76 are provided on the second shaft 55b between the second gear 56 and the support plate 78, and the inside of the through hole 78a of the support plate 78 is in the second shaft 55b.
  • the other end (the upper end in FIG. 7A) is movably inserted.
  • the torque limiter 70 is configured by the first holder 71, the second holder 74, and the disc spring 76.
  • the urging force of the disc spring 76 is not applied when the torque difference between the first gear 54 and the second gear 56 exceeds a predetermined value in order to prevent the seat belt from tightening the occupant's body with an excessive force. It is set to be engaged.
  • the clutch 61 includes a gear wheel 57 having a final gear 58 formed on the outer peripheral surface, a pair of pawls 41, a friction spring 42, a cover ring 43, a bush 44, a bearing bush 45, and a clutch. And a housing 50.
  • the clutch housing 50 rotates integrally with the spindle 12 with the connecting portion 51 coupled to the spindle 12 being rotatably supported by the outer gear cover 26 via the bush 44. Further, a cylindrical portion 52 having an inner tooth 50a with which the pawl 41 engages is formed on the outer peripheral side of the connecting portion 51, and the connecting portion 51 and the cylindrical portion 52 are mutually connected on the retractor frame 11 side. Connected.
  • the gear wheel 57 includes a large-diameter side cylinder portion 57b having a final gear 58 formed on the outer peripheral surface, and a small-diameter side cylinder portion 57a having a shorter axial length than the large-diameter side cylinder portion 57b.
  • a cylindrical portion 52 of the clutch housing 50 is inserted between the small diameter side cylindrical portion 57 a and the large diameter side cylindrical portion 57 b from the retractor frame 11 side, and the clutch housing 50 is accommodated in the gear wheel 57.
  • the inner peripheral surface of the large-diameter side cylindrical portion 57b faces the outer peripheral surface of the cylindrical portion 52 of the clutch housing 50 so as to be relatively rotatable, and the outer peripheral surface of the small-diameter side cylindrical portion 57a is formed on the inner peripheral surface of the clutch housing 50. It faces the tooth 50a so as to be relatively rotatable.
  • the inner peripheral surface of the small diameter side cylindrical portion 57a is rotatably supported by the convex portion 26a of the outer gear cover 26 via the bearing bush 45.
  • the convex portion 26 a protrudes annularly from the outer gear cover 26 along the axial direction, and is formed concentrically with the clutch housing 50.
  • a pair of pawl sliding grooves 57c for holding the pair of pawls 41 are formed on the end surface on the retractor frame 11 side in the small diameter side cylinder portion 57a of the gear wheel 57.
  • the pair of pawl sliding grooves 57c are openings that are open so that the engaging portion 41a of the pawl 41 faces the internal teeth 50a of the clutch housing 50 at the counter electrode position (position rotated by 180 °) on the outer peripheral surface of the small diameter side cylinder portion 57a. It has a portion 57d and extends in the opposite direction along the shape of the pawl 41 from the opening 57d.
  • the pair of pawls 41 each have an engaging portion 41a on one end side, have a curved shape slightly curved from one end side to the other end side, and are slidably held in the pawl sliding groove 57c. Then, in the pawl sliding groove 57c, the first position P1 (see FIG. 3) that is located when the motor 34 is not operating, and the motor 34 is operated so that the engaging portion 41a becomes the inner teeth 50a of the clutch housing 50.
  • a second position P2 (see FIG. 4) that is located when the pretensioner mechanism 15 is operated, and a third position that is located on the opposite side of the second position P2 with respect to the first position P1.
  • P3 (see FIG. 6) is moved.
  • the pawl 41 is provided with a holding recess 41b that holds a bent portion 42b (described later) of the friction spring 42 at a substantially central portion of the end surface on the retractor frame 11 side.
  • the end surface of the pawl 41 on the retractor frame 11 side holds the bent portion 42b of the friction spring 42, which will be described later, in the holding recess 41b, so that the retractor frame 11 side end surface of the small diameter side cylindrical portion 57a of the gear wheel 57 Located on the 11th side.
  • the friction spring 42 has a substantially ring shape having an open portion 42a open at both ends, and a spindle is provided on the outer peripheral surface of the convex portion 26a formed on the outer gear cover 26 by its own urging force.
  • the convex portion 26a is urged toward the center of the rotational axis 12 and is held in contact with the cover frame 43 from the retractor frame 11 side.
  • Two bent portions 42b are formed on the friction spring 42 so as to protrude from the open portion 42a to the outer diameter side at 90 ° on both sides, and the bent portions 42b are respectively held in the holding recesses 41b of the pawls 41. .
  • the friction spring 42 receives a force in the rotational direction, it generates a frictional force in the direction opposite to the rotational direction between the friction spring 42 and the convex portion 26 a of the outer gear cover 26.
  • the operation of the seatbelt retractor 10 of this embodiment will be described.
  • the motor 34 is driven before the collision by an ECU (not shown), and the spindle 12 is rotated via the power transmission mechanism 19 to wind the seat belt.
  • the motor 34 is reversely rotated so that the seat belt can be pulled out.
  • the pretensioner mechanism 15 is operated to mechanically release the clutch 61 to forcibly wind up the seat belt.
  • the operation of the clutch 61 will be described with reference to FIGS.
  • the pawl 41 is positioned substantially at the center of the pawl sliding groove 57 c, and the engaging portion 41 a of the pawl 41 is the clutch housing 50.
  • the clutch housing 50 and the pawl 41 are disengaged (first position P1). Therefore, only the clutch housing 50 integrated with the spindle 12 can rotate, and the seat belt can be normally wound and pulled out.
  • the first holder 71 of the first gear assembly 72 and the second holder 74 of the second gear assembly 75 constituting the torque limiter 70 are engaged with each other by the urging force of the disc spring 76 to be integrated.
  • the power from the motor 34 is transmitted from the motor gear 35 to the first gear 54 and from the second gear 56 to the final gear 58.
  • the first gear 54 idles and the power of the motor 34 is not transmitted to the spindle 12. This prevents the seat belt from tightening the occupant with an excessive force and prevents a load greater than a predetermined value from acting on the gear mechanism 60.
  • the power transmission mechanism 19 is mechanically coupled to the motor 34 and the clutch 61 capable of interrupting power transmission from the motor 34 to the spindle 12 when the pretensioner mechanism 15 is operated.
  • a gear mechanism 60 that has at least a first gear 54 coupled to the clutch 61 and a second gear 56 mechanically coupled to the clutch 61, and transmits power from the motor 34 to the clutch 61, and the first gear 54.
  • a torque limiter 70 that allows relative slip of the first gear 54 and the second gear 56 when a torque difference exceeding a predetermined value occurs between the motor 34 and the second gear 56.
  • the seat belt When the seat belt is wound up by a certain amount and the passenger is lightly restrained, the seat belt tightens the passenger with more force than necessary even if the "slack" is eliminated. It is possible to prevent the theft. At the same time, it is possible to prevent a load of a predetermined value or more from acting on the gear mechanism 60 and to prevent the gear mechanism 60 from being damaged. Furthermore, the first shaft 55a to which the first gear 54 is attached and the second shaft 55b that is arranged coaxially with the first shaft 55a and to which the second gear 56 is attached are located on a rotation axis different from the spindle 12. Therefore, the radial dimension of the seatbelt retractor 10 can be reduced without increasing the outer diameter of the clutch 61.
  • the second gear 56 constitutes a worm gear, a large reduction ratio can be obtained with a small structure.
  • the torque limiter 70 includes a first holder 71, a second holder 72, and a disc spring 76 that is an urging member.
  • the first holder 71 has a first shaft to which the first gear 54 is attached.
  • the first gear assembly 72 is formed together with the first shaft 55a and the first gear 54, and the second holder is provided on one side of the second shaft 55b to which the second gear is attached.
  • the second gear assembly 75 is provided together with the second shaft 55b and the second gear 56, and is provided at the end so as to mesh with the first holder 71.
  • the disc spring 76 has the second gear assembly 75 on the first gear assembly 72 side. As it is urged, it is easy to assemble.
  • the seat belt retractor 10 of the present embodiment described above is a preferred example of the present invention, and other embodiments can be implemented or performed by various methods.
  • the invention is not limited to the detailed shape, size, configuration, and the like of the components shown in the accompanying drawings unless otherwise specified in the present specification.
  • expressions and terms used in the present specification are for the purpose of explanation, and are not limited thereto unless otherwise specified.
  • the disc spring 76 has been exemplified as the biasing member in the above embodiment, the present invention is not limited to this, and a known spring member such as a compression coil spring can be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

Selon l'invention, un mécanisme de transmission de force (19) possède au moins : un embrayage (61) permettant d'interrompre la transmission de puissance d'un moteur (34) vers une tige (12) lorsqu'un mécanisme prétendeur (15) est actionné, un premier élément denté (54) mécaniquement raccordé au moteur (34), et un second élément denté (56) mécaniquement raccordé à l'embrayage (61). Ce mécanisme de transmission de force (19) est également équipé : d'un mécanisme de roue dentée (60) qui transmet une puissance du moteur (34) vers l'embrayage (61); et d'un limiteur de couple (70) permettant une rotation relative au ralenti du premier élément denté (54) et du second élément denté (56), lorsque se produit une différence de couple supérieure à une valeur prédéfinie entre le premier élément denté (54) et le second élément denté (56). Un premier axe (55a) sur lequel est monté le premier élément denté (54), et un second axe (55b) sur lequel est monté le second élément denté (56) et qui est disposé de manière coaxiale avec le premier axe (55a), sont positionnés sur un axe de rotation différent de celui de la tige (12).
PCT/JP2010/070045 2009-11-11 2010-11-10 Rétracteur de ceinture de sécurité WO2011059010A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011540528A JP5648924B2 (ja) 2009-11-11 2010-11-10 シートベルト用リトラクタ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009258071 2009-11-11
JP2009-258071 2009-11-11

Publications (1)

Publication Number Publication Date
WO2011059010A1 true WO2011059010A1 (fr) 2011-05-19

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PCT/JP2010/070045 WO2011059010A1 (fr) 2009-11-11 2010-11-10 Rétracteur de ceinture de sécurité

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JP (1) JP5648924B2 (fr)
WO (1) WO2011059010A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014000919A (ja) * 2012-06-20 2014-01-09 Autoliv Development Ab シートベルト用リトラクタ
WO2014039214A1 (fr) * 2012-09-05 2014-03-13 Ancra International Llc Système de tension de courroie
WO2016199525A1 (fr) * 2015-06-08 2016-12-15 オートリブ ディベロップメント エービー Rétracteur de ceinture de sécurité
EP3549833A1 (fr) * 2018-04-05 2019-10-09 TRW Automotive GmbH Embrayage pour un tendeur de ceinture de sécurité
KR20230080930A (ko) * 2021-11-30 2023-06-07 아우토리브 디벨롭먼트 아베 프리 텐셔닝 모듈 및 그가 적용된 시트벨트 리트랙터
JP7434391B2 (ja) 2022-03-09 2024-02-20 オートリブ ディベロップメント エービー シートベルト用リトラクタ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005088838A (ja) * 2003-09-19 2005-04-07 Takata Corp シートベルトリトラクタ
JP2006282097A (ja) * 2005-04-04 2006-10-19 Ashimori Ind Co Ltd シートベルト用リトラクター

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004042782A (ja) * 2002-07-11 2004-02-12 Tokai Rika Co Ltd ウエビング巻取装置
JP4437963B2 (ja) * 2004-09-07 2010-03-24 株式会社東海理化電機製作所 モータリトラクタ
US8777147B2 (en) * 2005-05-19 2014-07-15 Autoliv Development Ab Seat belt device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005088838A (ja) * 2003-09-19 2005-04-07 Takata Corp シートベルトリトラクタ
JP2006282097A (ja) * 2005-04-04 2006-10-19 Ashimori Ind Co Ltd シートベルト用リトラクター

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014000919A (ja) * 2012-06-20 2014-01-09 Autoliv Development Ab シートベルト用リトラクタ
WO2014039214A1 (fr) * 2012-09-05 2014-03-13 Ancra International Llc Système de tension de courroie
US9061622B2 (en) 2012-09-05 2015-06-23 Ancra International Llc Strap tensioning system
WO2016199525A1 (fr) * 2015-06-08 2016-12-15 オートリブ ディベロップメント エービー Rétracteur de ceinture de sécurité
JPWO2016199525A1 (ja) * 2015-06-08 2018-02-22 オートリブ ディベロップメント エービー シートベルト用リトラクタ
US10421430B2 (en) 2015-06-08 2019-09-24 Autoliv Development Ab Seatbelt retractor
EP3549833A1 (fr) * 2018-04-05 2019-10-09 TRW Automotive GmbH Embrayage pour un tendeur de ceinture de sécurité
KR20230080930A (ko) * 2021-11-30 2023-06-07 아우토리브 디벨롭먼트 아베 프리 텐셔닝 모듈 및 그가 적용된 시트벨트 리트랙터
KR102656771B1 (ko) * 2021-11-30 2024-04-15 아우토리브 디벨롭먼트 아베 프리 텐셔닝 모듈 및 그가 적용된 시트벨트 리트랙터
JP7434391B2 (ja) 2022-03-09 2024-02-20 オートリブ ディベロップメント エービー シートベルト用リトラクタ

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JPWO2011059010A1 (ja) 2013-04-04

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