WO2017157829A1 - Gurtaufroller mit einer kraftbegrenzungseinrichtung - Google Patents
Gurtaufroller mit einer kraftbegrenzungseinrichtung Download PDFInfo
- Publication number
- WO2017157829A1 WO2017157829A1 PCT/EP2017/055793 EP2017055793W WO2017157829A1 WO 2017157829 A1 WO2017157829 A1 WO 2017157829A1 EP 2017055793 W EP2017055793 W EP 2017055793W WO 2017157829 A1 WO2017157829 A1 WO 2017157829A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connecting tube
- profile head
- belt shaft
- locking hook
- belt
- Prior art date
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
- B60R22/34—Belt retractors, e.g. reels
- B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
- B60R22/41—Belt retractors, e.g. reels self-locking in an emergency with additional means for preventing locking during unwinding under predetermined conditions
-
- 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
- B60R2022/287—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices using deformation of material of torsion rods or tubes
-
- 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
- B60R2022/288—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices with means to adjust or regulate the amount of energy to be absorbed
Definitions
- the present invention relates to a belt retractor for a safety belt of a motor vehicle, with a rotatably mounted in a housing frame belt shaft, a respect to the housing frame lockable profile head and a force limiting device coupled with a first end to the profile head and a second end to the belt shaft is and which allows a force-limited relative rotation of the belt shaft relative to the locked profile head, and with a force limiting device at least partially surrounding the connecting tube and a locking hook, which slides relative to the profile head over an outer circumference of the Verb indungs raw res during relative rotation of the belt shaft and upon reaching a predetermined angle of rotation of the belt shaft is incident in a formed on the circumference of the connecting tube locking groove, whereby the connecting tube is coupled to the belt shaft.
- a belt retractor with the aforementioned features is known from DE 102012 107557 B3, in which the Kra tbegrenzungs drove is switched by a collapse of the locking hook in the locking groove of a low level of force limiting in a higher level of force limitation.
- Object of the present invention is therefore to remedy the disadvantages described with respect to the prior art at least partially and in particular to provide a belt retractor, in which the force-limiting relative rotation between the belt shaft and the profile head is completely stopped after reaching a relative rotational angle.
- a belt retractor with the features mentioned, in which the connecting tube is formed integrally with the Pr filkopf, so that the belt shaft is locked against the profile frame during rotation of the locking hook in the locking groove on the profile head rotatably with the housing frame.
- the relative rotation of the belt shaft to the locked profile head is completely stopped after reaching the predetermined by the collapse of the locking hook in the Verricgelungsnut rotation angle. Due to the one-piece design of the profile head with the connecting pipe, the number of components of the belt retractor is also reduced.
- the invention has the further advantage that the force limiting device consisting of two torsion bars according to the prior art can only in particular comprise precisely one torsion bar as the sole element of the force limiting device. Also, it is not necessary to replace a torsion bar by a non-torsional element. Thus, you can Compared to the prior art components can be saved.
- the belt retractor of the locking hook is rigidly connected to a driver which engages in a the connecting tube helical U formed so that upon relative rotation of the locking hook relative to the connecting tube axial displacement of the locking hook relative to the connecting tube, wherein the locking hook at the initial Rotation of the locking hook against the connecting tube protrudes axially over the locking groove formed on the connecting tube and is supported on the connecting pipe and only after a caused by the relative rotation of the belt shaft A ial displacement of the locking hook is incident in the locking groove.
- the rotation angle can be set, after which a rotationally fixed coupling of the belt shaft takes place with the relative to the housing frame locked profile head.
- a spacer between the locking hook and the surface of the connecting pipe and a spacer corresponding recess may be formed on the surface of the connecting pipe, wherein the spacer on a first exceeding the locking hook on the locking groove prevents a collapse of the locking hook.
- the spacer falls into the corresponding recess and is decoupled from the locking hook, so that upon re-reaching the locking groove of the locking hook is incident in the locking groove.
- the number of teeth of the first end may be greater than the number of teeth of the second end.
- one end has at least twice as many teeth as the other end.
- the angle between two adjacent positions can be reduced by a higher number of teeth, so that the stop function can be adjusted more precisely.
- the number of teeth of one end is a multiple of the number of teeth of the other end.
- the teeth of the first end are in toyssriehtung offset from the teeth of the second end, in particular even if the same number of teeth are formed at both ends.
- the teeth of the first end to the teeth of the second end at an angle of 20 ° to 70 ° circumferentially offset from one another, in particular at an angle of 25 ° to 35 ° or at an angle of 55 ° to 65 °, preferably with an angle of 30 ° or 60 °.
- at least two teeth of one end with their respective radial outer claims form a rib ribs through which a frictional connection with the profile head or the belt shaft is achieved.
- every second tooth of the end of the torsion bar has a rib which has the higher number of teeth.
- Fig. 1 an explosion on the essential components of a belt retractor
- FIG. 1 shows the components of a belt retractor which are essential for the realization of the invention.
- the belt retractor comprises a profile head 2, on which a connecting pipe 6 is integrally formed.
- a connecting pipe 6 On an outer periphery of the connecting tube 6 locking grooves 8 and a helically extending groove 10 are formed.
- the connecting pipe 6 designed as a torsion rod Kraftbegrenzungsei direction 3 is arranged, which has at a first end 4 radially projecting teeth 11, with which the force limiting device 3 tion rotatably connected to the profile head 2 is connected.
- the belt retractor further comprises a belt shaft 1, which rotatably connected via teeth 11 at a second end 5 of the force limiting device 3 with the force limiting device 3 is.
- the belt retractor also includes a locking hook 7 which is spring-biased in the assembled state between the belt shaft 1 and the connecting tube 6, wherein the locking hook 7 is connected to the belt shaft.
- the torsion bar shown as a force limiting device 3 with a first end 4 and a second end 5.
- the torsion bar has a plurality of radially projecting teeth 11 at both ends 4, 5.
- the number of teeth 11 is twice as high at the second end 5 as at the first end 4.
- For the frictional connection of the torsion bar with a component of the belt retractor are between the teeth 11 of the first end 4 in axial Rieh- tion extending ribs 12 formed.
- ribs 12 are formed on a radially outer side of the teeth 11.
- the ribs 12 are formed only on each second tooth 11 on the second side 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020187026624A KR20180112020A (ko) | 2016-03-14 | 2017-03-13 | 동력 제한 장치를 구비한 벨트 리트랙터 |
CN201780016742.5A CN108778850A (zh) | 2016-03-14 | 2017-03-13 | 具有限力装置的带卷收器 |
JP2018546412A JP2019508314A (ja) | 2016-03-14 | 2017-03-13 | フォースリミッター機構を備えるベルトリトラクター |
US16/085,051 US10829084B2 (en) | 2016-03-14 | 2017-03-13 | Belt retractor having a force limitation device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016104614.0 | 2016-03-14 | ||
DE102016104614.0A DE102016104614B4 (de) | 2016-03-14 | 2016-03-14 | Gurtaufroller mit einer Kraftbegrenzungseinrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017157829A1 true WO2017157829A1 (de) | 2017-09-21 |
Family
ID=58266659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2017/055793 WO2017157829A1 (de) | 2016-03-14 | 2017-03-13 | Gurtaufroller mit einer kraftbegrenzungseinrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US10829084B2 (de) |
JP (1) | JP2019508314A (de) |
KR (1) | KR20180112020A (de) |
CN (1) | CN108778850A (de) |
DE (1) | DE102016104614B4 (de) |
WO (1) | WO2017157829A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018108089B4 (de) | 2018-03-23 | 2021-03-18 | Autoliv Development Ab | Gurtaufroller mit Sollbruchstelle aufweisendem Verbindungsrohr |
CN112078536B (zh) * | 2020-09-10 | 2021-10-01 | 肇庆市协创汽车零部件产业研究院有限公司 | 一种汽车安全带装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999006249A1 (de) * | 1997-07-29 | 1999-02-11 | Autoliv Development Ab | Sicherheitsgurtanordnung mit sekundäraufprallstrammer |
DE19927427A1 (de) * | 1999-06-16 | 2001-01-04 | Autoliv Dev | Gurtaufroller mit schaltbarem Kraftbegrenzer |
DE102009024292A1 (de) | 2009-06-05 | 2010-12-09 | Autoliv Development Ab | Gurtaufroller für einen Sicherheitsgurt eines Kraftfahrzeuges |
DE102012107557B3 (de) | 2012-08-17 | 2014-10-30 | Autoliv Development Ab | Gurtaufroller mit einer schaltbaren Kraftbegrenzungseinrichtung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3452779B2 (ja) * | 1997-11-28 | 2003-09-29 | 株式会社東海理化電機製作所 | 回転量制限装置及びウエビング巻取装置 |
JP3885983B2 (ja) * | 1999-04-27 | 2007-02-28 | 芦森工業株式会社 | シートベルトリトラクタ |
JP2006159986A (ja) * | 2004-12-03 | 2006-06-22 | Ashimori Ind Co Ltd | シートベルト用リトラクター |
DE102006049840B4 (de) | 2006-10-23 | 2022-02-03 | Zf Automotive Germany Gmbh | Gurtaufroller für einen Fahrzeuginsassen-Sicherheitsgurt |
JP2012180040A (ja) * | 2011-03-02 | 2012-09-20 | Ashimori Industry Co Ltd | シートベルト用リトラクタ |
JP6026162B2 (ja) * | 2012-07-13 | 2016-11-16 | 芦森工業株式会社 | シートベルト用リトラクタ |
US9079565B2 (en) * | 2013-03-14 | 2015-07-14 | Autoliv Asp, Inc. | Progressive load limiting restraint system |
JP6145368B2 (ja) | 2013-09-13 | 2017-06-07 | タカタ株式会社 | シートベルトリトラクタ及びシートベルト装置 |
CN204368085U (zh) * | 2014-12-01 | 2015-06-03 | 延锋百利得(上海)汽车安全系统有限公司 | 一种限力可调的安全带卷收器 |
-
2016
- 2016-03-14 DE DE102016104614.0A patent/DE102016104614B4/de active Active
-
2017
- 2017-03-13 CN CN201780016742.5A patent/CN108778850A/zh active Pending
- 2017-03-13 WO PCT/EP2017/055793 patent/WO2017157829A1/de active Application Filing
- 2017-03-13 US US16/085,051 patent/US10829084B2/en active Active
- 2017-03-13 JP JP2018546412A patent/JP2019508314A/ja active Pending
- 2017-03-13 KR KR1020187026624A patent/KR20180112020A/ko not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999006249A1 (de) * | 1997-07-29 | 1999-02-11 | Autoliv Development Ab | Sicherheitsgurtanordnung mit sekundäraufprallstrammer |
DE19927427A1 (de) * | 1999-06-16 | 2001-01-04 | Autoliv Dev | Gurtaufroller mit schaltbarem Kraftbegrenzer |
DE102009024292A1 (de) | 2009-06-05 | 2010-12-09 | Autoliv Development Ab | Gurtaufroller für einen Sicherheitsgurt eines Kraftfahrzeuges |
DE102012107557B3 (de) | 2012-08-17 | 2014-10-30 | Autoliv Development Ab | Gurtaufroller mit einer schaltbaren Kraftbegrenzungseinrichtung |
Also Published As
Publication number | Publication date |
---|---|
DE102016104614B4 (de) | 2018-04-05 |
JP2019508314A (ja) | 2019-03-28 |
KR20180112020A (ko) | 2018-10-11 |
US10829084B2 (en) | 2020-11-10 |
DE102016104614A1 (de) | 2017-09-14 |
US20190077367A1 (en) | 2019-03-14 |
CN108778850A (zh) | 2018-11-09 |
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