WO2012159731A1 - Baugruppe für einen gurtaufroller - Google Patents
Baugruppe für einen gurtaufroller Download PDFInfo
- Publication number
- WO2012159731A1 WO2012159731A1 PCT/EP2012/002161 EP2012002161W WO2012159731A1 WO 2012159731 A1 WO2012159731 A1 WO 2012159731A1 EP 2012002161 W EP2012002161 W EP 2012002161W WO 2012159731 A1 WO2012159731 A1 WO 2012159731A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor
- receiving device
- center
- assembly according
- belt retractor
- 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
- B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
-
- 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
- B60R22/40—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement
-
- 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
-
- 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
- B60R22/40—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement
- B60R2022/401—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement with adjustable sensor
Definitions
- the invention relates to an assembly for a belt retractor with a vehicle-sensitive sensor and a receiving device for the sensor.
- the invention further relates to a belt retractor for a vehicle seat belt with such an assembly.
- Belt retractors with a vehicle-sensitive mechanism for locking the belt reel comprise an acceleration sensor with an inertia body, the deflection of which initiates the blocking process.
- the sensors are fixed to the frame of the belt retractor or coupled to this.
- a disadvantage of such sensors is that they must take a certain orientation in the vehicle to ensure safe and reliable operation.
- the installation position of the belt retractor in the vehicle varies, in particular depending on the vehicle type, it is necessary in these cases to provide different variants of the belt retractor with correspondingly different spatial orientations of the sensor.
- the assembly for a belt retractor comprises a vehicle-sensitive sensor and a receiving device for the sensor.
- the sensor and the receiving device have geometrical configurations which interact and are coordinated with one another in such a way that the sensor can be installed in the receiving device in different spatial orientations.
- the invention is based on the recognition that the possibility of adjusting the orientation of the sensor relative to the frame of the belt retractor, the disadvantages described above can be avoided.
- the receiving device still provides a fixed position for the sensor on the belt retractor.
- the particular spatial configurations of the sensor and the recording device according to the invention allow a largely arbitrary orientation of the sensor before it is finally fixed in the receiving device.
- the sensor can be adapted to the later installation position of the belt retractor.
- the requirement to provide different Gurtaufrollerlinen eliminated, without the need for additional components are required.
- Another advantage of the assembly according to the invention is that by changing the orientation of the sensor in the receiving device, an adjustment of the sensor (in the sense of adjustment of the sensor function values) can be made. This also reduces tool costs.
- Blocking mechanisms that are triggered by a sensor with an inertia body that can be moved out of a rest position as a result of forces acting on the outside have proven to be useful.
- the orientation freedom of the sensor can be achieved in that the geometric design of the receiving device has an inner receiving surface, which is symmetrical with respect to the center or center of gravity or a tilting or pivoting axis of the inertial body in its rest position.
- the senor in particular a sensor housing accommodating the inertial body, should have an outer surface which is opposite to that of the sensor body Center or center of gravity or a tilting or pivoting axis of the inertial body is symmetrical in its rest position.
- the inner receiving surface of the receiving device and the outer surface of the sensor each have a rounding, preferably the rounding of an imaginary sphere whose center coincides with the center or center of gravity of the inertial body. This allows a continuous rotation of the sensor in the receiving device in any spatial directions, wherein the position of the center of the inertial body relative to the receiving device and thus to the belt retractor always remains the same.
- Belt retractors based on what is known as the "floating spool” concept have been known for some time now.
- the belt spool itself is movable between a release position and a blocking position
- an intermediate lever which is pivotable by a movement of the inertial body, can be pivotally mounted on the receiving device, this intermediate lever then being the part of the vehicle-sensitive blocking mechanism, which can be controlled by driving it into a position Control toothing of the belt reel whose displacement initiates blocking on the frame of the belt retractor.
- a sensor lever is disposed between the inertial body and the intermediate lever, which is mounted on a sensor housing receiving the inertial body and is pivotally mounted relative to the sensor housing.
- the sensor lever transmits the movement of the inertial body from its rest position in the form of a defined pivoting movement on the intermediate lever.
- a sensor lever having a cap portion which covers the inertial body and has an outer surface with a curve, preferably with the roundness of an imaginary sphere whose center coincides with the center or center of gravity of the Inertial body coincides.
- the senor does not subsequently change its orientation, which is set once in the receiving device during the life of the belt retractor, depending on the requirement, the sensor and / or the receiving device has means with which the sensor can be permanently fixed independently of the spatial orientation in the receiving device ,
- the invention also provides a belt retractor for a vehicle seat belt with an assembly according to the invention.
- the receiving device is fixedly connected to the sensor coupled to a frame of the belt retractor, in which a belt reel of the belt retractor is rotatably mounted. Depending on the mounting position of the belt retractor in the vehicle then the relative mounting position of the sensor can be adjusted.
- FIG. 1 is a side view of an assembly according to the invention.
- FIG. 2 is a perspective view of the assembly of FIG. 1;
- FIG. 4 is a perspective view of the detail of Figure 3.
- FIG. 5 to 16 are side views and perspective views of the assembly with different mounting positions of the sensor.
- FIGS. 1 and 2 show a receiving device for a vehicle-sensitive sensor.
- the receiving device 10 and the sensor are part of a belt retractor for a vehicle seat belt with a belt reel and a frame in which the belt reel from a release position in which it can rotate freely in the frame, can be moved to a blocking position in the Blocking toothing of the belt reel in blocking teeth on Frame intervenes.
- This blocking concept is known to the person skilled in the art under the name "floating spool" concept.
- the receiving device is in this case a pivot lever of the belt retractor, in which the belt reel is mounted.
- the pivot lever can also be provided with an internal toothing for the belt-sensitive blocking.
- a vehicle-sensitive responsive sensor with a sensor housing 16, an inertial body 18, here a ball, and an actuatable by the inertial body 18 sensor lever 20 is provided.
- the sensor is shown enlarged in FIGS. 3 and 4.
- the inertia body 18 is accommodated in the sensor housing 16 and assumes therein a stable rest position.
- the inertia body 18 can be moved out of the rest position by external forces due to vibration, a strong deceleration or the like.
- the movement takes place from the rest position in the form of tilting or pivoting about an axis.
- the inertia body 18 is partially covered by a cap portion 22 of the sensor lever 20.
- the sensor lever 20 is in turn so mounted on the sensor housing 16 or on a fixedly connected to this storage section that defined by a movement of the inertial body 18 from the rest position of the cap portion 22 is deflected (pivoted).
- the shape of the cap portion 22, in particular its spherical outer surface, is chosen so that the cap can be considered as part of an (imaginary) hollow sphere having the same center as the inertia body 18.
- a contact section 24 of the intermediate lever 12 rests on the cap section 22 of the sensor lever 20.
- the intermediate lever 12 is coupled to the sensor lever 20 and is pivoted by the deflection in the desired manner, thereby triggering a blockage of the belt reel.
- the inertia body 18, sensor housing 16 and sensor lever 20 form a unit that can be installed in different orientations in the receiving device 10.
- the inner geometric design of the receiving device 10 and the outer geometric design of the sensor are coordinated so that the sensor can be placed in a different spatial orientations before a final fixation in the receiving device.
- the fundamentally possible orientations result from rotations of the sensor about spatial axes that run through the center M of the inertial body (see FIG. 4).
- the sensor housing 16 has one or more sections with an outer surface having the rounding of an (imaginary) ball whose center coincides with the center M of the inertial body 18.
- an inner surface of one or more sections of the receiving device 10 d. H. this surface also has the rounding of an (imaginary) sphere whose center corresponds to the center M of the inertial body.
- the spherical surfaces Thanks to the spherical surfaces, a continuous rotation of the sensor around all spatial axes is possible. After setting the desired installation position, the sensor is permanently fixed in the receiving device 10.
- FIGS. 5 to 16 Various possible installation positions of the sensor in the receiving device 10 are shown by way of example in FIGS. 5 to 16. These figures show that the contact portion 24 of the intermediate lever 12 and the cap portion 22 of the sensor lever 20 are designed so that a rotation of the sensor in the receiving device 10 - within the limits defined above - has no influence on the position of the intermediate lever 12, d. H. in any permissible mounting position, a gap between the sensor lever 20 and intermediate lever 12 or a significant deflection of the intermediate lever 12 in comparison to another mounting position exists, which would have different size gap between the tip 14 of the intermediate lever 12 and the control teeth of the belt reel.
- the assembly described can also be used in belt retractors, which are not based on the "floating spool” concept, but have a non-displaceable belt spool and a separate clutch disc with a locking toothing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/118,908 US9499123B2 (en) | 2011-05-25 | 2012-05-22 | Assembly for a belt retractor |
BR112013030202A BR112013030202A2 (pt) | 2011-05-25 | 2012-05-22 | conjunto para um retrator de cinto |
EP12727589.9A EP2714475B1 (de) | 2011-05-25 | 2012-05-22 | Baugruppe für einen gurtaufroller |
KR1020137033813A KR101997908B1 (ko) | 2011-05-25 | 2012-05-22 | 벨트 리트랙터용 조립체 |
CN201280036685.4A CN103764456B (zh) | 2011-05-25 | 2012-05-22 | 用于安全带卷收器的结构组件 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110103113 DE102011103113A1 (de) | 2011-05-25 | 2011-05-25 | Baugruppe für einen Gurtaufroller |
DE1020011103113.1 | 2011-05-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012159731A1 true WO2012159731A1 (de) | 2012-11-29 |
Family
ID=46298353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/002161 WO2012159731A1 (de) | 2011-05-25 | 2012-05-22 | Baugruppe für einen gurtaufroller |
Country Status (7)
Country | Link |
---|---|
US (1) | US9499123B2 (de) |
EP (1) | EP2714475B1 (de) |
KR (1) | KR101997908B1 (de) |
CN (1) | CN103764456B (de) |
BR (1) | BR112013030202A2 (de) |
DE (1) | DE102011103113A1 (de) |
WO (1) | WO2012159731A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014208570B4 (de) * | 2014-05-07 | 2018-08-23 | Autoliv Development Ab | Gurtaufroller für eine Sicherheitsgurteinrichtung für ein Kraftfahrzeug |
DE102014210396B4 (de) * | 2014-06-03 | 2021-05-27 | Autoliv Development Ab | Gurtaufroller für eine Sicherheitsgurteinrichtung für ein Kraftfahrzeug |
DE102016202383B4 (de) * | 2016-02-17 | 2018-05-24 | Autoliv Development Ab | Selbstsperrender Gurtaufroller |
DE102017126987A1 (de) * | 2017-11-16 | 2019-05-16 | Trw Automotive Gmbh | Sensor zur Aktivierung eines fahrzeugsensitiven Sperrmechanismus eines Gurtaufrollers |
DE102018130923A1 (de) * | 2018-12-05 | 2020-06-10 | Trw Automotive Gmbh | Trägheitssensor und Verfahren zur Verringerung der Reibung zwischen zwei Komponenten eines Trägheitssensors |
DE102021118420A1 (de) | 2021-07-16 | 2023-01-19 | Zf Automotive Germany Gmbh | Baugruppe für einen Gurtaufroller sowie Gurtaufroller |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20006314U1 (de) * | 2000-04-06 | 2000-08-17 | TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf | Trägheitssensor |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2402921C2 (de) * | 1974-01-22 | 1987-05-14 | Artur 7060 Schorndorf Föhl | Beschleunigungs- und verzögerungsabhängige Schalt- bzw. Steuervorrichtung |
US4978087A (en) * | 1987-11-10 | 1990-12-18 | Britax-Kolb Gmbh & Co. | Acceleration sensor for vehicle-sensitive systems |
DE19500722A1 (de) * | 1995-01-12 | 1996-07-18 | Trw Repa Gmbh | Sensor für einen Sicherheitsgurtaufroller |
DE19758495C2 (de) * | 1997-08-12 | 2003-12-04 | Hs Tech & Design | Sicherheitsgurtaufroller |
GB2349119B (en) * | 1999-04-21 | 2001-05-30 | Breed Automotive Tech | A sensor for a seat belt retractor |
KR100323845B1 (ko) * | 1999-12-09 | 2002-02-07 | 이승복 | 차량용 좌석벨트 리트랙터 |
US7631830B2 (en) * | 2006-04-17 | 2009-12-15 | Key Safety Systems, Inc. | Retractor with rotary rack pretensioner |
DE202007000909U1 (de) * | 2007-01-18 | 2007-04-05 | Takata-Petri Ag | Sensoreinrichtung zur Aktivierung eines Sperrmechanismus für einen Gurtaufroller eines Kraftfahrzeugs |
KR100751773B1 (ko) * | 2007-01-24 | 2007-08-23 | 주식회사 삼송 | 시트벨트 리트랙터 |
US7628349B2 (en) * | 2007-03-06 | 2009-12-08 | Autoliv Asp, Inc. | Inertia actuator for seat belt retractor |
US7568649B2 (en) * | 2007-03-23 | 2009-08-04 | Autoliv Asp, Inc. | Vehicle sensitive seat belt retractor control with suppressed Z-axis sensitivity |
KR101001776B1 (ko) * | 2009-04-03 | 2010-12-17 | 아우토리브 디벨롭먼트 아베 | 좌석벨트 리트랙터 |
GB2472433B (en) * | 2009-08-06 | 2011-06-29 | Martin Baker Aircraft Co Ltd | A pawl assembly |
-
2011
- 2011-05-25 DE DE201110103113 patent/DE102011103113A1/de not_active Withdrawn
-
2012
- 2012-05-22 EP EP12727589.9A patent/EP2714475B1/de active Active
- 2012-05-22 US US14/118,908 patent/US9499123B2/en active Active
- 2012-05-22 KR KR1020137033813A patent/KR101997908B1/ko active IP Right Grant
- 2012-05-22 BR BR112013030202A patent/BR112013030202A2/pt active Search and Examination
- 2012-05-22 WO PCT/EP2012/002161 patent/WO2012159731A1/de active Application Filing
- 2012-05-22 CN CN201280036685.4A patent/CN103764456B/zh active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20006314U1 (de) * | 2000-04-06 | 2000-08-17 | TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf | Trägheitssensor |
Also Published As
Publication number | Publication date |
---|---|
EP2714475B1 (de) | 2018-03-28 |
KR101997908B1 (ko) | 2019-07-08 |
BR112013030202A2 (pt) | 2016-11-29 |
CN103764456B (zh) | 2018-01-19 |
DE102011103113A1 (de) | 2012-11-29 |
EP2714475A1 (de) | 2014-04-09 |
CN103764456A (zh) | 2014-04-30 |
US20150115090A1 (en) | 2015-04-30 |
KR20140033151A (ko) | 2014-03-17 |
US9499123B2 (en) | 2016-11-22 |
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