WO2019105902A1 - Rétracteur de ceinture - Google Patents

Rétracteur de ceinture Download PDF

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Publication number
WO2019105902A1
WO2019105902A1 PCT/EP2018/082626 EP2018082626W WO2019105902A1 WO 2019105902 A1 WO2019105902 A1 WO 2019105902A1 EP 2018082626 W EP2018082626 W EP 2018082626W WO 2019105902 A1 WO2019105902 A1 WO 2019105902A1
Authority
WO
WIPO (PCT)
Prior art keywords
deformation element
inner shaft
outer ring
belt retractor
belt
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.)
Ceased
Application number
PCT/EP2018/082626
Other languages
German (de)
English (en)
Inventor
Jens Bohn
Friedrich Littau
Sebastian SCHWEITZER
Fabian STRÖHLE
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.)
ZF Automotive Germany GmbH
Original Assignee
TRW Automotive 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 TRW Automotive GmbH filed Critical TRW Automotive GmbH
Priority to DE112018006049.7T priority Critical patent/DE112018006049A5/de
Publication of WO2019105902A1 publication Critical patent/WO2019105902A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B60R22/28—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices
    • B60R2022/286—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices using deformation of material

Definitions

  • the present invention relates to a belt retractor for a motor vehicle.
  • Belt retractors are part of the safety system of motor vehicles.
  • the belt retractor is configured to lock the belt in a short time if necessary to securely restrain the occupants.
  • belt retractors have a belt force limiter in order not to let the forces increase too much after tightening the belt in the forward displacement phase of the occupant.
  • the belt force limiters are designed in the form of a torsion bar.
  • the torsion bar reduces the force acting on the occupants by twisting them, thereby reducing energy and defining a forward displacement of the occupants. Different levels of force are achieved by different Torsionsstab butmesser.
  • the torsion bar is integrated in the retractor shaft and mounted laterally. If necessary, the torsion bar is held on one side and initiated a rotation of the torsion bar.
  • a belt retractor for a motor vehicle comprising a belt spool which is rotatably mounted about a spool axis, wherein the belt spool an inner shaft and an outer ring which is coupled in the circumferential direction with the inner shaft having. Between the Inner shaft and the outer ring is arranged at least one deformation element which is in toothed engagement with the inner shaft and / or the outer ring and which is arranged eccentrically to the coil axis.
  • the outer ring is held, the inner shaft, however, can continue to rotate.
  • the deformation element arranged therebetween is deformed and can thereby reduce the force occurring. In this way, a reliable belt force limiting mechanism can be provided.
  • the deformation elements can theoretically be circulated infinitely often, in particular cyclically alternately deformed.
  • the deformation elements always move on the same path.
  • the outer ring may be formed as a toothed disc, in particular with an axial and / or radial toothing.
  • the inner shaft is for example part of a bobbin, in particular a wave extension of a bobbin.
  • the outer ring may be an integral part of the belt reel or flanged axially to the belt reel. However, a relative rotation between the outer ring and the inner shaft must be possible.
  • the outer ring may be a separate component which is coupled via the deformation element with the inner shaft.
  • the deformation element can be arranged in the radial direction and / or in the axial direction between the inner shaft and the outer ring. In this way, the belt retractor can be particularly compact and adapted to a given space situation.
  • inner shaft and outer ring are not necessarily to be understood that the inner shaft is disposed within the outer ring.
  • Inner shaft and outer ring may also have an approximately equal diameter and / or the inner shaft may be disposed outside of the outer ring to adapt the belt retractor to a given space situation.
  • the inner shaft and the outer ring in the axial direction and / or in the radial direction are spaced apart.
  • the inner shaft can be formed in an advantageous manner by the belt reel itself by a frontal toothing is formed on this.
  • the deformation element preferably has an outer toothing.
  • the external toothing is formed in this case as a radial toothing.
  • the inner shaft may have an outer toothing and the outer ring an inner toothing.
  • the inner shaft and the outer ring are coupled together by the deformation element when the deformation element with the outer toothing of the inner shaft and the inner toothing of the outer ring is engaged. Consequently, a rotation of the outer ring can also cause a rotation of the inner shaft, for example, to wind a belt.
  • the outer ring may have an outer toothing.
  • On the external teeth can engage a pawl of a locking mechanism.
  • a drive element which can set the outer ring in rotation can engage the outer toothing.
  • the inner shaft may have an inner toothing and the outer ring an outer toothing.
  • both the inner shaft and the outer ring have an outer toothing and an inner toothing.
  • inner shaft and outer ring can be coupled in different ways depending on space requirements.
  • the coupling takes place in any case via the deformation element.
  • the external toothing and / or the internal toothing of the inner shaft or of the outer ring can be a radial toothing and / or an axial toothing.
  • the deformation elements are arranged for example between the inner shaft and the outer ring as the planetary gears of a planetary gear between sun and ring gear.
  • the deformation element preferably has a base body which is kidney-shaped. By this shape, the deformation element can be adapted to the geometry of the outer ring and the inner shaft. In particular, a curvature of the base body is selected so that the deformation element is arranged concentrically to the outer ring and the inner shaft. A width of the base body corresponds for example to a radial distance between the inner shaft and the outer ring.
  • the deformation element is preferably a self-contained element, that is, it has no interruption along its circumference. In particular, the deformation element is in one piece. Under normal operating conditions, the deformation element is a rigid element.
  • the deformation element may comprise an annular base body which is folded along a center line. In this way, a substantially semicircular deformation element results.
  • the deformation element can be produced in this case a sheet metal stamping and thus particularly simple and inexpensive.
  • the deformation element may be a cold-formed metal part.
  • the external toothing of the deformation element can be arranged along the circumference of the base body. If the outer ring is blocked, the deformation element can be deformed upon rotation of the inner shaft. In particular, the deformation element is moved by the inner shaft, wherein the deformation element moves eccentrically to the coil axis. As a result, an applied force is reduced and a rotation between the outer ring and the inner shaft is allowed. Alternatively, the inner shaft can be blocked and the outer ring cause a deformation of the deformation element during rotation.
  • Deformationselements be arranged on a front side of the base body. As a result, a reliable coupling of the outer ring is achieved with the inner shaft, even if the inner shaft and outer ring are axially spaced.
  • the deformation element has a recess which has the shape of a bent oblong hole.
  • the deformation element can be designed to be flexible overall. An applied force can thereby be continuously reduced if necessary. Due to the shape of a curved elongated hole, the recess is adapted to the kidney shape of the base body, so that a remaining wall of the base body in the circumferential direction has a constant wall thickness.
  • the deformation element may have a support element which is arranged in the interior of the recess and which prevents a buckling of the deformation element.
  • the support element can completely fill the recess.
  • this can also be designed as axial toothing.
  • end projections and / or depressions may be arranged on the circumference of the deformation element.
  • an insert may be provided, which is arranged in the radial direction between the inner shaft and the outer ring and between the circumferential ends of the deformation element is enclosed.
  • the deformation element abuts the insert with its peripheral ends.
  • the insert prevents the deformation element from being extended when it is circulated.
  • the deformation element if necessary, is compressed by the inserter.
  • a force limiting mechanism of the belt retractor can be adapted to a predetermined force level.
  • the force limiting mechanism can be adapted to the individual vehicle.
  • a wrap angle of the deformation element and the number of deformation elements can also influence the force level.
  • a transmission ratio between the inner shaft and the outer ring can be adjusted via the geometry of the deformation elements.
  • the at least one deformation element may consist of a metal.
  • the deformation element has sufficient stability, but at the same time is deformable enough to allow a reduction in force.
  • the material of the deformation element can also be selected according to a predetermined force level.
  • the belt retractor on at least two, more preferably three deformation elements, which are preferably arranged symmetrically.
  • the force curve during the force reduction can alternatively or additionally be influenced by the fact that the belt retractor has at least two deformation elements which differ in their material.
  • the belt retractor has at least two deformation elements which differ in their material.
  • at least one deformation element made of metal and at least one deformation element made of plastic may be formed.
  • the deformation elements may be formed of different plastics or metals. Due to the many possibilities of influence, the system is very flexible and the power level can be adapted to different types of motor vehicles.
  • FIG. 1 shows a belt retractor according to the invention
  • FIG. 2 shows part of a belt reel
  • FIG. 3 shows a partial view of a belt retractor according to the invention
  • FIG. 4 shows a deformation element
  • FIG. 5 shows part of a belt reel according to a further embodiment of the invention
  • FIGS. 6a, 6b and 6c each schematically show a part of a belt reel with deformation elements of different shapes;
  • FIG. 7 shows a part of a belt reel according to a further embodiment of the invention.
  • FIG. 8 shows the part of a belt reel shown in FIG. 7 in a front view
  • FIG. 9 shows the part of a belt reel shown in FIG. 7 in an exploded view
  • FIG. 10 shows a part of a belt reel according to a further embodiment of the invention in an exploded view
  • FIG. 11 shows the deformation element of the part of the belt reel shown in FIG. 10 in a detailed view, FIG.
  • FIG. 12 shows the part of a belt reel shown in FIG. 10 in an isometric view
  • FIG. 13 shows the part of a belt reel shown in FIG. 10 in a front view
  • FIGS. 14a to 14e show a deformation element for a further belt reel according to the invention
  • FIGS. 15a to 15e show a modified deformation element for a further belt reel according to the invention
  • FIGS. 14a to 14e shows a belt reel according to the invention with the deformation element shown in FIGS. 14a to 14e in an exploded view;
  • the belt reel of Figure 16 is a front view and a side view
  • FIGS. 18a to 18e show a deformation element for a further belt reel according to the invention
  • FIGS. 19 to 22 each show a part of a belt reel according to the invention with the deformation element shown in FIGS. 18a to 18e.
  • FIG. 1 shows a belt retractor 10 with a belt spool 12, which is rotatably mounted in a housing 14.
  • the belt reel 12 has a bobbin 16 and an outer ring 18.
  • the bobbin 16 has a not visible in Figure 1 shaft extension, which forms the inner shaft 17 shown in the following figures.
  • the outer ring 18 is formed as a toothed disc.
  • the belt retractor 10 may also be part of a rotary Endbetschstraffers or a rotary force limiter, for example, at the end fitting.
  • the belt reel 12 comprises the bobbin 16, the outer ring 18 and three deformation elements 26, the bobbin 16 is not fully shown in Figure 1, but only an inner shaft 17 of the bobbin 16, which is coupled to the outer ring 18.
  • the inner shaft 17 has an outer toothing 30 and the outer ring 18 has an internal toothing 32.
  • the outer ring is designed as a toothed disc.
  • the three deformation elements 26 are arranged, which are each in toothed engagement with both the inner shaft 17 and the outer ring 18.
  • the bobbin 16, in particular the inner shaft 17 and the outer ring 18 are rotatably coupled together.
  • the deformation elements 26 each have a kidney-shaped main body 34.
  • the curvature of the base body 34 is adapted to the geometry of the inner shaft 17 and the outer ring 18, so that the deformation elements 26 can be optimally inserted into a gap between the inner shaft 17 and the outer ring 18.
  • the deformation elements 26 have an external toothing 36.
  • the deformation elements 26 are in positive engagement with both the inner shaft 17 and the outer ring 18th
  • the deformation elements 26 each have a recess 38, which has the shape of a bent oblong hole. Through the recess 38, the deformation elements 26 have a higher overall flexibility.
  • all three deformation elements 26 have the same shape. However, it is also possible that the deformation elements 26 differ in their height and / or width and / or thickness. In addition, the Deformation elements 26 each consist of different materials. For example, the deformation elements 26 are made of metal.
  • the deformation elements 26 are arranged between the inner shaft 17 and the outer ring 18 as the planet gears of a planetary gear between sun and ring gear.
  • the outer ring 18 is held, the inner shaft 17, and thus also the bobbin 16, but can continue to rotate.
  • the bobbin 16 can be rotated by an occupant is pressed in a forward displacement in the belt. Due to the rotation of the bobbin 16, in particular the inner shaft 17, and due to the toothed engagement between the inner shaft 17 and the deformation elements 26, the deformation elements 26 are taken from the bobbin 16, in particular from the inner shaft 17, and deformed, whereby the applied force is reduced.
  • FIG. 3 shows a partial view of a belt retractor 10.
  • the arrangement shown in FIG. 2 is shown in the belt retractor 10.
  • the belt spool 12 is usually attached, which can be seen in Figure 1.
  • FIG. 4 shows a deformation element 26 in a detail view.
  • An inner radius the deformation element is for example between 6 mm and 10 mm, preferably 8 mm.
  • a lateral radius r 2 is for example between 1 mm and 4 mm, preferably 2 mm. In this case, the radius is measured in each case along a center line of a circumferential wall 33 of the main body 34.
  • a width b of the peripheral wall is for example between 0.5 mm and 3 mm, preferably 1 mm.
  • FIG. 5 shows part of a belt reel 12 for a belt retractor 10 according to an alternative embodiment.
  • the outer ring 18 and the Deformation elements 26 are similarly formed as shown in Figure 2, in particular in toothed engagement with each other.
  • the inner shaft 17 is cylindrical, that is, it has no external teeth.
  • the deformation elements 26 shown in Figure 5 also have a support member 40 which is disposed in the interior of the recess 38 and the recess completely fills. As a result, the support element can prevent a buckling of the deformation element 26.
  • the support members 40 are rotatably connected via webs, not shown, with the inner shaft 17. A relative rotation of inner shaft 17 and outer ring 18 thus also causes a relative rotation of the outer ring 18 and the support elements 40 and thus a deformation of the deformation elements 26th
  • FIGS. 6a, 6b and 6c each schematically show a part of a belt reel 12 with an outer ring 18, an inner shaft 17 and one or more deformation elements 26.
  • the representation of the toothings has been dispensed with.
  • FIG. 6 a shows a deformation element 26 that is relatively short in comparison to the other embodiments in FIGS. 6 b and 6 c.
  • the deformation element 26 extends over an angle of approximately 70 °.
  • This embodiment may be provided for a relatively low level of force.
  • a deformation element 26 extends over the entire circumference of the inner shaft 17, in particular over an angle of approximately 360 °. With such a configuration, a multiple deformation of equal portions of the deformation element 26 can be prevented or reduced at substantially the same level of force.
  • FIG. 6c shows two deformation elements 26, each extending over an angle of 180 °.
  • the force level can be increased because more forming work is done.
  • FIG. 8 shows the part of a belt reel 12 shown in FIG. 7 in a front view
  • FIG. 9 shows the part of the belt reel 12 shown in FIG. 7 in an exploded view.
  • FIGS. 7 to 9 The embodiment illustrated in FIGS. 7 to 9 is characterized in that, in addition to the deformation element 26, an insert 42 is provided which, like the deformation element 26, is arranged between the inner shaft 17 and the outer ring 18, in particular in the radial direction.
  • the deformation element 26 is enclosed between the peripheral ends of the insert 42, so that the deformation element 26 can not extend appreciably in the circumferential direction.
  • the force limiting mechanism is therefore particularly reliable.
  • a support element 40 is arranged in the recess 38 of the deformation element 26, as has already been described in connection with FIG.
  • the embodiments described above all show a radial toothing and work with a radial rolling of the
  • FIGS. 10 to 13 illustrate a further embodiment of the belt retractor 10 according to the invention, wherein, for the sake of simplicity, only part of the belt reel 12 is also shown.
  • a radial rolling of the deformation elements 26 is achieved by means of an axial toothing.
  • the deformation element 26 is also kidney-shaped in this embodiment.
  • the outer toothing 36 of the base body 34 is arranged on at least one, in the illustrated example, on both axial end faces of the deformation element 26. As a result, an axial toothing with the inner shaft 17 and the outer ring 18 can be achieved.
  • the inner shaft 17 comprises an outer toothing 30 with two sprockets 44 of which, for manufacturing and assembly reasons, one fixed to the inner shaft 17 and a removable.
  • a fixed and a removable sprocket 46 are also provided.
  • the sprockets 44, 46 are rotatably connected in each case by a positive connection with the inner shaft 17 and the outer ring 18. In the embodiment shown, this is achieved by radially protruding tabs 66, which engage in corresponding recesses 68 on the inner shaft 17 and the outer ring 18.
  • the deformation element 26 is mounted in the assembled state between the sprockets 44, 46.
  • a toothed rim 44, 46 on the inner shaft 17 or in the outer ring 18 would be sufficient in each case.
  • two sprockets 44, 46 however, a more stable mounting of the deformation element 26 and a better power reduction can be achieved.
  • the belt reel 12 comprises the inserts 42 and support elements 40 already described in connection with FIGS. 5 and 7 to 9.
  • Figures 12 and 13 show the part of the belt reel 12 shown in Figure 10 in an assembled state respectively in an isometric view and in a front view.
  • FIGS. 14a to 14e show a deformation element 26 for a belt retractor 10 according to a further embodiment of the invention.
  • Figures 14a and 14b show in particular a blank 48, which forms a base body 34 of the deformation element 26 and from which the deformation element 26 can be made by the blank 48 along a center line M is bent into a U-shaped part in a side view, as shown in Figure 14d.
  • the blank 48 is, for example, a stamped part, in particular of a metal sheet.
  • the blank 48 is in the unbent state annular and has an external toothing 36 and an internal toothing 37, which form after bending and the external teeth 36 and internal teeth 37 of the deformation element 26, as shown in Figures 14c and 14e.
  • FIGS. 15a to 15e show a further blank 48 which forms a base body 34 of the deformation element 26 and from which the deformation element 26 can be manufactured by forming the blank 48 along a center line M into a side view as shown in FIG. 15d. shaped part is bent.
  • the blank 48 is, for example, a stamped part, in particular of a metal sheet.
  • the blank 48 is circular in the unbent state and has an outer toothing 36.
  • Figures 16, 17a and 17b show the deformation element 26 of Figures 14c to 14e in an assembled state in a belt reel 12, wherein Figure 16 shows an exploded view of the belt reel 12.
  • Figures 17a and 17b show the belt reel 12 in a front view and a side view.
  • the inner shaft 17 has an outer toothing 30.
  • a further toothing 52 is provided on the belt reel 12, which protrude in the axial direction from an end face of the belt reel 12.
  • a toothing is arranged on an outer peripheral edge of the belt reel 12.
  • one of the two gears 30, 52 is sufficient.
  • the belt reel 12 can be considered in this case as the inner shaft 17.
  • the outer ring 18 also has an internal toothing 32 and an external toothing 54.
  • the outer ring 18 is closed in the front side in the embodiment shown in Figures 16, 17a and 1b and thereby simultaneously forms a cap for the belt reel 12.
  • an integrally formed pin 56 of the outer ring 18 serves for the storage of the belt reel 12th
  • the outer ring 18 is designed as a toothed disc with axial toothing.
  • the inner shaft 17 and the outer ring 18 are coupled via the deformation element 26 with each other in the circumferential direction.
  • the deformation element 26 is arranged for this purpose in the axial direction between the inner shaft 17 and the outer ring 18 and coupled by the axial teeth 36 and the inner teeth 37 with inner shaft 17 and outer ring 18.
  • the belt reel 12 can rotate relative to the outer ring 18 as described above, thereby deforming the deformation element 26, whereby a force is released.
  • a deformation element 26 which has only external teeth 36, as shown in FIGS. 15a to 15e, this is likewise arranged between belt spool 12 and outer ring 18.
  • the belt reel is similar to the one shown in Figure 16, in which case only the further toothing 52 is provided, which is adapted to the tooth shape of the deformation element 26.
  • the external teeth of a leg of the U-shaped deformation element 26 meshes with the further toothing 52 of the belt reel while the external toothing 36 of the second leg of the deformation element 26 meshes with the external toothing 54 of the outer ring.
  • FIGS. 18a to 18e show a deformation element 26 for a belt retractor 10 according to a further embodiment of the invention.
  • Figures 18a and 18b show in particular a blank 48, which forms a base body 34 of the deformation element 26 and from which the Deformation element 26 can be made by the blank 48 is bent along a center line M to a U-shaped part in a side view, as shown in Figure 18d.
  • the blank 48 is, for example, a cold-formed part, in particular made of a metal.
  • the blank 48 is in the unbent state annular or circular and has on one side, which lies in the bent state of an outer side of the deformation element 26, a ribbing 58 with a plurality of radially extending ribs 60.
  • the external toothing 36 of the deformation element 26th arranged in the present case on an end face of the deformation element 26, in particular on an end face of the base body 34.
  • This ribbing 58 is used in particular for toothing of the deformation element 26 with the inner shaft 17 and the outer ring 18, as shown in Figures 18 to 21.
  • the inner shaft 17 and the outer ring 18 have corresponding depressions 62, in which the deformation element 26 can engage with its ribbing 58.
  • a disc 64 is formed for this purpose, in which the recesses 62 are formed.
  • the recesses 62 extend only over an end face of the inner shaft 17.
  • the outer ring 18 also has corresponding recesses for engagement with the deformation element 26, which are not visible in the figures.

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

Abstract

L'invention concerne un rétracteur de ceinture pour un véhicule automobile, comprenant une bobine de ceinture (12) qui est montée de manière à pouvoir tourner autour d'un axe de bobine, la bobine de ceinture (12) présentant un arbre intérieur (17) et une bague extérieure (18) qui est couplée dans le sens périphérique à l'arbre intérieur (17), et au moins un élément de déformation (26) étant disposé entre l'arbre intérieur (17) et la bague extérieure (18), ledit élément de déformation étant en prise au moyen d'une denture avec l'arbre intérieur (17) et/ou la bague extérieure (18) et disposé de manière excentrique par rapport à l'axe de la bobine.
PCT/EP2018/082626 2017-11-28 2018-11-27 Rétracteur de ceinture Ceased WO2019105902A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112018006049.7T DE112018006049A5 (de) 2017-11-28 2018-11-27 Gurtaufroller

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017128101.0A DE102017128101A1 (de) 2017-11-28 2017-11-28 Gurtaufroller
DE102017128101.0 2017-11-28

Publications (1)

Publication Number Publication Date
WO2019105902A1 true WO2019105902A1 (fr) 2019-06-06

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Application Number Title Priority Date Filing Date
PCT/EP2018/082626 Ceased WO2019105902A1 (fr) 2017-11-28 2018-11-27 Rétracteur de ceinture

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DE (2) DE102017128101A1 (fr)
WO (1) WO2019105902A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1094619A (ja) * 1996-09-20 1998-04-14 Nissan Motor Co Ltd 乗り物用安全ベルト巻取装置
US6669132B2 (en) * 2000-08-31 2003-12-30 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Webbing retractor
DE102007020001A1 (de) * 2007-04-27 2008-10-30 Trw Automotive Gmbh Gurtaufroller
US9487184B2 (en) * 2010-07-06 2016-11-08 Autoliv Development Ab Force limiting device for a motor vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3902728A1 (de) * 1989-01-31 1990-08-02 Joachim Fassbender Sicherheitsgurt mit gurtdaempfung
GB2323265B (en) * 1997-03-18 2001-03-07 Autoliv Dev Improvements in or relating to a seat belt retractor
KR100852291B1 (ko) * 2002-03-22 2008-08-18 아시모리고교 가부시키가이샤 시트 벨트용 리트랙터

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1094619A (ja) * 1996-09-20 1998-04-14 Nissan Motor Co Ltd 乗り物用安全ベルト巻取装置
US6669132B2 (en) * 2000-08-31 2003-12-30 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Webbing retractor
DE102007020001A1 (de) * 2007-04-27 2008-10-30 Trw Automotive Gmbh Gurtaufroller
US9487184B2 (en) * 2010-07-06 2016-11-08 Autoliv Development Ab Force limiting device for a motor vehicle

Also Published As

Publication number Publication date
DE102017128101A1 (de) 2019-05-29
DE112018006049A5 (de) 2020-08-13

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