![]() Drawing in device of blocking drive for car safety belt
专利摘要:
An acceleration sensitive locking device for stopping the unwinding of vehicle safety belts from a coil thereof when the vehicle is under larger than normal acceleration forces as when the vehicle is in a collision with a toothed wheel connected to the safety belt coil and a clasp is loosely mounted in a housing which clasp is moved into engagement with said toothed wheel to prevent rotation thereof when an abnormal acceleration force is present. 公开号:SU898952A3 申请号:SU731962945 申请日:1973-09-19 公开日:1982-01-15 发明作者:Эрик Нильссон Карл 申请人:Аутолив Аб (Инофирма); IPC主号:
专利说明:
389 The drive for locking the belt retractor is an integral part of the device and provides for locking it in the event of an emergency deceleration of the vehicle speed. The retractor is mounted in the housing 1, in which a spring-loaded shaft (not shown) is located for winding the belt, at the end of the shaft there is a ratchet wheel 2 having a device for blocking the unwinding of the belt when the wheel is braked. For braking the ratchet wheel 2, a device locking drive is provided, comprising a locking element in the form of a latch 3, having a rounded rear end 4 and a pointed front end 5, and a latch turning mechanism in the locked position of the ratchet wheel 6o. Latch 3 is located in the cavity 7 of the housing 1, and has a window 8 facing the ratchet wheel 2 and tangentially directed thereto, a rounded back wall 9 for interfacing with the rounded end k of the latch, which smoothly passes from above to the extension irren suit 10, anterior inclined wall 11 for contact with the pointed end 5 of the latch c; The anterior and posterior walls of the cavity are connected by a bottom 12 directed obliquely to the rounded rear wall 9 and having a horizontal section 13j behind which there is an opening 1; In the recess, in the lower part, in the cavity 16, in the recess 15, the head 17 of the tandem 6 is located, its neck 18 is placed in the hole 14, and the inertial mass 19 in the cavity 16 of the head of the 17 is made disc-shaped and serves to engage the latch 3, which in the corresponding area is made with a beveled surface 20. FIG. 3 and i) shows the corresponding dimensions of the tandem 6 and the latch i 3, where the forward movement is shown by solid lines and the notation F, t, a, b is used (Fig. 3) and the lateral movement is depicted by dash-dotted lines (figo k) and the notation F, t, a, b are used. FIGS. 3 and 4 denote: F, F the force with which the head of the 17 acts on the latch 3 at a certain amount of acceleration; m, m is the resultant acceleration force arising in the center of the latch plate and acting on it; a, a is the distance between the center of gravity of the latch 3 and the edge of the horizontal section 13 of the bottom of the cavity at a right angle to the direction of the force t, t; b, b is the distance between the point of application of the force F to the latch and the said bottom edge by which the latch 3 can rise. It is desirable that the force F always has the highest value, not dependent on the tilt in any direction. Obviously that in the proposed device, this condition is achieved at 9-1, which is possible when choosing the appropriate dimensions of the elements of the device When the car is moving at an equal speed, the head of the 17th tomb is on a coit in the recess 15 and the tambourine is in the neutral position. In this case, the latch 3 with its bottom side abuts against the section 13 of the bottom of the cavity 7, and the rounded rear end k of the expanded part 10 of the cavity (Fig. The center of the latch body is located in the direction of the inside section 13c of the inner side of the inclined section of the bottom 12, During emergency decelerations, the tilt of the ticker from the specified position occurs, at which its head 17 acts on the latch 3, displacing it before interacting with the tooth of the ratchet wheel 2, at which the device shaft locks. In this case, the latch 3 rotates counterclockwise (Fig. 2), the rounded end 4 of the latch exits the expanded part 10 and lowers to the rounded rear wall 9 of the cavity, which leads to the clamping of the latch between the latter and the ratchet tooth, i.e. the shaft from rotating in the direction of the belt unwinding (clockwise). After the load is removed, the master takes up a neutral position, and after the rotation of the ratchet wheel in the direction of unwinding the latch 3 under the action of its own weight and pressure of the wheel moves down, to the off position before moving its rounded end k from the wall 9 into the expanded part 10 of the body cavity , The proposed implementation of the drive for locking the retractor device increases the reliability of its actuation is sensitive to forces acting in all directions and is easy to manufacture.
权利要求:
Claims (1) [1] Invention Formula Drive blocking device d; 1 car seat belt containing a locking element in the housing in the form of a latch having rounded and pointed ends for engagement with the teeth of the ratchet wheel mounted on the shaft for winding the repair belt and means for turning the latch to the ratchet lock position wheels made in the form of a tandem with a head located under the latch in the zone of its pointed end. characterized in that, in order to increase the reliability of operation, a cavity is made in the housing for accommodating a latch, having a window facing the ratchet wheel and directed tangentially to the latter, the cavity has a rounded back wall for conjugating the curved end of the latch, the front to-j a clone wall for contact with the pointed end of the latter and the bottom connecting these walls, directed obliquely to the rounded wall, while the head of the panel is made disk-shaped, and the center of gravity of the latch is located between the slope the bottom of the cavity and the head of the tandem. Sources of information taken into account in the examination 1, Patent of Great Britain No. 121398 cl. L 3 V, published, 1970 (prototype). . and b
类似技术:
公开号 | 公开日 | 专利标题 SU898952A3|1982-01-15|Drawing in device of blocking drive for car safety belt JP3005817B2|2000-02-07|Auxiliary locking mechanism for retractor with pretensioner GB1351642A|1974-05-01|Reel for a vehicle safety belt US3901459A|1975-08-26|Safety belt retractor locking device GB1131001A|1968-10-16|Self-retracting reeling device for safety belts US3610361A|1971-10-05|Electrically operated seat belt retractor SE8300617L|1983-09-13|BAND belt retractor SE8206832L|1983-07-29|ROLLING HOUSE WITH NED BAND FOR SEAT BELTS EP0216068B1|1989-05-24|A seat belt retractor reel AU670129B2|1996-07-04|Retractor for seat belt IE800219L|1980-10-19|Belt retractor for use in vehicle seat belt systems. JP4308262B2|2009-08-05|Accelerometer assembly for restraint retractor US5373612A|1994-12-20|Buckle device in seat belt apparatus US4223915A|1980-09-23|Seatbelt system GB1398885A|1975-06-25|Selflocking retractor reel for safety belts in passenger conveying vehicles US4428545A|1984-01-31|Safety belt system having retractor equipped with manual locking mechanism ES262596U|1982-07-16|Emergency locking retractor for a vehicle occupant restraint belt ES256556U|1981-07-01|Locking device for a belt retractor in safety belts GB1408462A|1975-10-01|Reel for a vehicle safety harness US6155513A|2000-12-05|Retractor locking mechanism US6889930B2|2005-05-10|Seatbelt retractor of an automobile ES2011226T3|1993-12-01|BELT REEL. GB1517716A|1978-07-12|Automatic reel for a safety belt US4065069A|1977-12-27|Emergency locking retractor US3999722A|1976-12-28|Safety belt retractor with dual sensitive, commonly mounted, actuating mechanism
同族专利:
公开号 | 公开日 DE2346553A1|1974-04-18| US3917188A|1975-11-04| DD107389A5|1974-08-05| ES418934A1|1976-03-01|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 RU2537366C2|2009-08-22|2015-01-10|Адольф Фёль ГмбХ + Ко. КГ|Safety belt pull-in mechanism|US3240510A|1962-06-13|1966-03-15|Pacific Scientific Co|Safety harness| US3294339A|1964-07-23|1966-12-27|John G Fontaine|Seat belt and locking means therefor| US3489367A|1967-11-17|1970-01-13|Firestone Tire & Rubber Co|Emergency locking retractor| US3770224A|1970-10-07|1973-11-06|Tokai Rika Co Ltd|Automatic lock-up device for safety belt| US3667698A|1971-01-22|1972-06-06|Robert C Fisher|Locking seat belt retractor| US3724773A|1971-05-06|1973-04-03|R Fisher|Seat belt retractor| US3741495A|1971-06-16|1973-06-26|Takata Kojyo Co|Automatic locking retractor system with stopper device| US3740000A|1971-07-12|1973-06-19|Takata Kojyo Co|Safety belt mechanism| US3771814A|1972-05-22|1973-11-13|American Safety Equip|Free-spooling retractor for vehicle of restraint system|DE2402921C2|1974-01-22|1987-05-14|Artur 7060 Schorndorf De Foehl| SE400896B|1974-08-29|1978-04-17|Autoliv Ab|LOCKING DEVICE FOR ONE VEHICLE SET BELT BELT| US4084840A|1976-02-23|1978-04-18|Allied Chemical Corporation|Vehicle sensitive retractor| US4065070A|1976-03-18|1977-12-27|The Firestone Tire & Rubber Company|Dual spool retractor| US4164336A|1978-04-17|1979-08-14|The Firestone Tire & Rubber Company|Dual spool positive drive retractor| DE8405545U1|1984-02-21|1984-06-20|Autoliv GmbH, 2200 Elmshorn|DEVICE FOR THE AUTOMATIC REELING OF A VEHICLE SAFETY BELT| DE3768382D1|1986-09-12|1991-04-11|Trw Vehicle Safety Systems|VEHICLE PASSENGER SAFETY DEVICE.| US5050815A|1990-01-18|1991-09-24|Occupant Safety Systems Inc.|Compact safety belt retractor| US5544838A|1994-02-09|1996-08-13|Trw Vehicle Safety Systems Inc.|Seat belt retractor| DE102005015559B4|2005-04-05|2009-02-05|Weber Gmbh & Co. Kg Kunststofftechnik Und Formenbau|Device for locking a locking device for lids of containers, for containers as such o. Storage compartments, e.g. for locking a cup holder, a lid of an ashtray o. The like., esp. In a motor vehicle| GB2472433B|2009-08-06|2011-06-29|Martin Baker Aircraft Co Ltd|A pawl assembly| DE102010028673B4|2010-05-06|2012-05-03|Lisa Dräxlmaier GmbH|Cover for closing an opening on a vehicle| CN105947815B|2016-06-28|2018-04-20|成都西南交大驱动技术有限责任公司|A kind of brake apparatus of electric-controlled type cable reel installation|
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申请号 | 申请日 | 专利标题 SE1211872|1972-09-20| 相关专利
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