CN103847686B - A kind of active automobile pretension seat belt - Google Patents
A kind of active automobile pretension seat belt Download PDFInfo
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- CN103847686B CN103847686B CN201410028579.2A CN201410028579A CN103847686B CN 103847686 B CN103847686 B CN 103847686B CN 201410028579 A CN201410028579 A CN 201410028579A CN 103847686 B CN103847686 B CN 103847686B
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- ratchet
- ribbon
- wheel disc
- seat belt
- coiler
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Abstract
The invention discloses a kind of active automobile pretension seat belt, belong to automobile collision accident Occupant injury prevention technical field.Including direct current generator, drive system, coiler, ribbon external member, described direct current generator is connected with drive system, the control signal of response accident pre-tightening apparatus and work, drive system is connected with direct current generator, transmits the motor power after slowing down to isolator and coiler.The present invention also can use the bilateral pre-pressing structure of ribbon, make safe ribbon can reach the purpose of bilateral pretension from strap portions and waistband portion rolling simultaneously, eliminate shoulder belt and belt wears gap simultaneously, substantially reduce occupant's health leading in collision accident and prevent occupant's dive, and it is integrated with limiter and lock in emergency function, reduce the collsion damage of occupant most possibly.
Description
Technical field
The present invention relates to a kind of automobile collision accident Occupant injury prevention device, belong to field of automobile safety, be further
Refer to a kind of active automobile pretension seat belt.
Background technology
Seat belt is indispensable occupant restraint system accessories.The all automobiles of China's automotive crash safety rules and regulations are equal
Seat belt must be assembled.Relevant experimentation also indicates that, using of seat belts is to damage is alleviated or avoided in occupant restraint system
Hinder most effective way.
Usually, comfortable for occupant, the pretightning force of seat belt can not be too big, always have certain between seat belt and human body
Gap, when occupant's clothes is thicker, this gap can be bigger.When collision, this gap will reduce the useful effect model of seat belt
Enclose, reduce the usefulness of seat belt.Common belt with pre-load device uses deflagration type pre-tightening apparatus, when collision reaches some strength,
Detonate gas generator, start preloader, drive snap close retraction or coiler revolution so that seat belt reclaims certain distance, has
Effect eliminates gap, improves the protective effect of seat belt.This firmly beforehand means occur after an impact, the pretension time short (20ms～
30ms), pretension length short (40mm～80mm), pretightning force big (≈ 2000N), Occupant injury prevention is had certain effect, but
And it is inconspicuous；And commonly explosion type seat belt pretensioners occurs moment tension seat belt may cause occupant in collision
Injury.Actively belt with pre-load device can begin to pretension seat belt, pretension time length (350 before automobile collision accident occurs
～500mm/s), pretightning force moderate (≈ 400N).Meanwhile, actively belt with pre-load device pre-tightening apparatus uses motor pre-tightening mode,
Device can be reused, it is to avoid the shortcoming that deflagration type pre-tightening apparatus is used only once.
It addition, in an impact, may due to belt pretightning force not, the different journeys that often have with seat not in time of pretension
The dive of degree causes occupant bottom forward downward under effect of inertia to slide, thus occupant's dive phenomenon occurs, so on the one hand
Can increase the risk of collision of leg and automotive trim, on the other hand seat belt will act at and produces serious wound on occupant's cervical region
Evil.The dive phenomenon of occupant is especially common during little stature occupant collides.
Summary of the invention
Present invention aim to overcome the deficiencies in the prior art, it is provided that a kind of active automobile pretension seat belt, energy
Enough pretension seat belt before car crass, substantially reduce occupant's health displacement before collision accident, are simultaneously introduced bilateral pre-
Tight safety belt structure, it is possible to the promptly shoulder belt of pretension seat belt and belt simultaneously before car crass, substantially reduces occupant and exists
Health leading in collision accident, and prevent occupant's dive, make occupant's attitude be maintained at normal sitting position position as far as possible,
Big degree ground plays the performance of occupant restraint system, effectively reduces the collsion damage of head, chest, thigh.
For solving above technical problem, the technical solution adopted in the present invention is: a kind of active automobile pretension seat belt,
Including direct current generator, drive system, isolator, coiler, ribbon external member, described direct current generator is solid with aluminum shell by installing plate
Fixed, and be connected with the drive system being arranged in aluminum shell, the control signal of response accident pre-tightening apparatus and work；Described transmission
System is connected with direct current generator, transmits the motor power after slowing down to isolator and coiler；Described isolator includes
Driving lever, driver plate, turn contracting wheel disc, ratchet, ratchet axle sleeve, cover plate, depression bar, spring；Described turn of contracting wheel disc is with described drive system even
Connecing, described ratchet axle sleeve is connected with coiler；Described driver plate is provided with plural number bar chute, and one end of described chute is away from driver plate axle
The heart, the other end is then near axle center, and it coordinates with the driving lever of corresponding a plurality of ratchets respectively, and described driving lever can move in chute
Dynamic；Described ratchet is evenly distributed respectively to be installed on and turns in contracting wheel disc, and can turn around being fixed on the swingle turned on contracting wheel disc
Dynamic；Described ratchet axle sleeve, cover plate, driver plate are concentrically mounted on successively and turn on contracting wheel disc；Wherein ratchet axle sleeve is installed on and turns contracting wheel disc
Inside groove on, can engage with ratchet outside it, the ratchet portions of ratchet axle sleeve and ratchet are encapsulated in and turn in contracting wheel disc by cover plate
In groove；Described depression bar is arranged on aluminum shell, and spring makes depression bar active force on driver plate, makes driver plate rotate and lags behind a turn contracting wheel
Dish, thus driving lever slides in chute, it is achieved the engagement of ratchet axle sleeve and ratchet with separate；Described turn contracting wheel plate edge be provided with
The groove that ratchet is corresponding, when vehicle collision intensity is bigger, ratchet axle sleeve makes the swingle of ratchet root rupture so that in ratchet
Contracting, in this groove, is connected between coiler with isolator and completely disengages from, and coiler gradually loosens knitting in described ribbon external member
Band, thus prevent that ribbon pulling force is excessive to be damaged occupant.
Further, described drive system includes three-stage gear reduction system, idle gear, planet circular system；Described three grades of teeth
Wheel deceleration system is connected with direct current generator, by idle gear and with turn planet circular system that contracting wheel disc is connected by after deceleration
Motor power transmits to isolator.
Further, described coiler includes framework, mandrel, lock device, backrush whirlpool spring and force-limiting device；Described framework with
Aluminum shell connects, and described mandrel is arranged in framework, and lock device is arranged on the other end of retractor frame by mandrel, it is achieved peace
The lock in emergency of full band, force-limiting device is arranged in mandrel, and backrush whirlpool spring is arranged on aluminum shell, with mandrel with square hole nested structure even
Connect.
Further, described ribbon external member includes ribbon, upper guide ring, bracelet inserted sheet, lower guide ring, lock pin and prevents
Sliding locating button；Described ribbon is through upper guide ring, bracelet inserted sheet and lower guide ring, and described anti-skidding locating button is arranged at bracelet inserted sheet
In the ribbon of lower end, described lock pin is respectively arranged at ribbon two ends so that ribbon can be stuck in described coiler mandrel two ends
In corresponding bar-shaped trough, forming a closed loop, in mandrel, safe ribbon is fixed and can not be slided；During mandrel revolution, ribbon
Strap portions and waistband portion simultaneously wound on mandrel, thus shoulder belt and belt are by pretension.
Further, described ribbon two ends are set rope structure, and the two ends a bit of stitching of equal inflection of i.e. common ribbon is set
Rope form, described lock pin can be inserted directly in the trepanning of this set rope structure.
Further, described swingle material is aluminum matter.
As known from the above, the technical solution adopted in the present invention has the advantage that
1, the present invention is integrated with belt with pre-load device, lock in emergency formula seat belt and the feature of limit type seat belt, has
Pretension, lock in emergency and the function of ribbon limiter in advance, by the collection of accident warning device Yu active belt structure division
Become cooperation, seat belt pretension can be realized effectively and reasonably, exactly, thus effectively reduce the occupant injury in collision.
2, the present invention can realize shoulder belt and the most bilateral pretension of belt before car crass simultaneously, eliminate shoulder and
The wearing gap of the safe ribbon of waist, makes occupant's attitude be maintained at normal sitting position position as far as possible, and prevents occupant's dive,
Big degree ground plays the performance of occupant restraint system, effectively reduces the collsion damage of head, chest, thigh.
3, the present invention uses motor to drive firmly beforehand means so that device is reusable, has economical and practical advantage.
4, the present invention is realizing bilateral pretension functionally, compared to other belt with pre-load devices, has simple in construction, suitable
By advantages such as property are strong.
Accompanying drawing explanation
Fig. 1 is the general assembly structural representation of the present invention active pretension seat belt；
Fig. 2 is the present invention active pretension seat belt drive system theory of mechanics schematic diagram；
Fig. 3 and 4 is the assembling structural representation of the present invention active pretension seat belt isolator；
Fig. 5 is the structural representation of the present invention active pretension Webbing retractor；
Fig. 6 is the general assembly structural representation of the present invention active pretension another preferred embodiment of seat belt；
Fig. 7 is the structural representation of the present invention active pretension seat belt above-mentioned preferred embodiment ribbon external member；
Fig. 8 is the structural representation of the present invention active pretension seat belt above-mentioned preferred embodiment mandrel cross section；
Fig. 9 is the position assembling signal of the present invention active pretension seat belt bilateral pre-pressing structure of above-mentioned preferred embodiment
Figure.
In the accompanying drawings:
1, motor-vehicle accident prior-warning device 2, direct current generator
3, ribbon assembly 4, drive system
5, installing plate 6, aluminum shell
7, coiler 8, isolator
31, lower guide ring 32, lock pin
33, upper guide ring 34, ribbon
35, anti-skidding locating button 36, bracelet inserted sheet
37, anchors is fixed in lower end
41, three-stage gear reduction system 42, idle gear
43, planet circular system 71, mandrel
72, framework 73, lock device
74, backrush whirlpool spring 75, force-limiting device
81, contracting wheel disc 82, driving lever are turned
83, driver plate 84, depression bar
85, ratchet axle sleeve 86, cover plate
87, ratchet 88, swingle
89, spring
341, strap portions 342, waistband portion
411, gear 1 412, gear 2
413, gear shaft 1 414, gear 3
415, gear shaft 2 431, central gear
432, planetary gear 433, ring gear
434, central gear shaft the 7101, first bar-shaped trough
7102, the second bar-shaped trough 8101, groove
8301, chute
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
Embodiment 1:
As it is shown in figure 1, accident warning device 1 is connected with direct current generator 2 one terminal circuit, it can be according to current driving states
Degree of danger, the abnormal dynamic response of vehicle, the fierce manipulative behavior of driver judge whether accident occurs, in collision
Accident sends instruction control direct current generator 2 and works before occurring.Direct current generator 2 is fixing with aluminum shell 6 riveting by installing plate 5, and
The power output shaft of direct current generator 2 is connected with drive system 4 profile, and drive system 4 is connected with isolator 8, isolator 8 and retracting
Mandrel 71 one end spline of device 7 connects, and drive system 4 and isolator 8 are installed in the groove of aluminum shell 6, therefore moves with dynamic
Power realizes slowing down through drive system 4, then by isolator 8 unidirectional delivery to coiler 7.Described coiler 7 receives drive system 4 and passes
The defeated motor come rotates forward power, thus the ribbon 34 in described ribbon external member 3 carries out pretension, and when direct current generator 2
Reversion, when isolator 8 departs from the control to coiler 7, described coiler 7 can make ribbon 34 be returned to initially and wear state.
Fig. 2 is the present invention active pretension seat belt drive system theory of mechanics schematic diagram, and in figure, drive system 4 includes
Three-stage gear reduction system 41, idle gear 42, planet circular system 43；Three-stage gear reduction system 41 includes three gears, two teeth
Wheel shaft；Gear 411 and the power output shaft Profile Connection of motor, gear 412 and gear shaft 413 and gear 414 and gear shaft 2
415 equal Profile Connection；Gear 411 engages composition first order reduction gearing pair with gear 412, and gear shaft 413 engages with gear 414
Composition second level reduction gearing pair, gear shaft 415 indirectly engages the composition third level by idle gear 42 and slows down with central gear 431
Gear mesh, idle gear 42 ensure that stablizing of drive system 4, and changes power transmission direction.Planet circular system 43 includes central shaft
One, position central gear 431 and 434, three uniform planetary gears 432 of a central gear shaft and ring gear 433；Central gear
431 with central gear shaft 434 interference fit, ring gear 433 is fixed on aluminum shell 6, the planet that the other three is arranged symmetrically with
Wheel 432 engages with central gear 431, ring gear 433 simultaneously, turns contracting wheel disc 81 and is equivalent to planet carrier at this and exports motion with dynamic
Power.In this drive system, direct current generator 2 output speed is high, due to three-stage gear reduction system 41 relatively planet circular system 43 transmission
Inertia is little and is set to directly be connected with direct current generator 2, when motion and power warp again after three-stage gear reduction system 41 is slowed down
Planet circular system 43 transmits, and the motion response so making drive system 4 is rapider.
Fig. 3 and 4 is the assembling structural representation of the present invention active pretension seat belt isolator, three of drive system 4
The planetary gear 432 being arranged symmetrically with turn three cylindrical hole coaxial cooperation uniform on contracting wheel disc 81, motor power can be by transmission
System 4 passes to isolator 8.Ratchet 87 is evenly distributed respectively to be installed on and turns in contracting wheel disc 81, can turn contracting wheel around being fixed on
Swingle 88 on dish 81 rotates, and ratchet axle sleeve 85, cover plate 86, driver plate 83 are concentrically mounted on successively and turn on contracting wheel disc 81, wherein
Ratchet axle sleeve 85 is installed on the inside groove turning contracting wheel disc 81 and can engage with ratchet 87, and cover plate 86 is by the ratchet portion of ratchet axle sleeve 85
Divide and be encapsulated on the inside groove turning contracting wheel disc 81 with ratchet 87；Driver plate 83 is provided with three straight 8301, respectively with three spine
The driving lever 82 of pawl 87 coordinates, and one end of chute 8301 is away from driver plate 83 axle center, and the other end is then near axle center.Direct current generator 2 rotates
Driving turns contracting wheel disc 81 and rotates, and driver plate 83 is pressurized under depression bar 84 is by the effect of spring 89 elastic force, and its rotation is delayed
In turning contracting wheel disc 81 so that driver plate 83 produces relative rotation with turning contracting wheel disc 81, this relative rotation can make driving lever 82 at chute
Slide in 8301, thus realize the engagement of ratchet 87 and ratchet axle sleeve 85 and separate, i.e. direct current generator 2 rotates forward and can will move
Pass to coiler mandrel 71 with power, and the reverse rotation of direct current generator 2 can interrupt the transmission of the power to coiler mandrel 71,
The motion of mandrel 71 also can not inversely pass to drive system 4 and direct current generator 2.Have turning the rear portion of ratchet 87 on contracting wheel disc 81
One groove 8101 being similar to ratchet 87 shape, when vehicle collision intensity is bigger, ratchet axle sleeve 85 can make the aluminum of ratchet 87 root
Matter swingle 88 ruptures, and ratchet 87 inside contracts in this groove 8101, and the restraining forces of mandrel 71 is disappeared by isolator 8, and mandrel 71 is accompanied
Rotate with force-limiting device 75 and gradually loosen ribbon, prevent that ribbon pulling force is excessive to be damaged occupant.
Fig. 5 is the structural representation of the present invention active pretension Webbing retractor, coiler 7 by framework 72, mandrel 71,
Force-limiting device 75, lock device 73 and backrush whirlpool spring 74 form.Framework 72 side and aluminum shell 6 rivet interlacement, opposite side installs lock
Only device 73, it is achieved the lock in emergency of seat belt.Mandrel 71 is arranged in retractor frame 72, and force-limiting device 75 is arranged on mandrel 71
In, backrush whirlpool spring 74 is arranged on aluminum shell 6, is connected with mandrel 71 square hole set.
Embodiment 2:
As Figure 6-9, this preferred embodiment is have employed the knot of the bilateral pretension of seat belt with the difference of embodiment 1
Structure, ribbon external member 3 includes ribbon 34, upper guide ring 33, bracelet inserted sheet 36, lower guide ring 31, lock pin 32 and anti-skidding fixed
Position button 35, the two ends of ribbon 34 are set rope structure, and the two ends a bit of stitching of equal inflection of i.e. common ribbon is in set rope form, this set
Rope-like constructed can insert a lock pin 32 just；Lower guide ring 31 instead of the lower end of generally employing and fixes anchors 37 so that
Ribbon about 34 two ends can be freely movable；Mandrel 71 lateral symmetry has twice bar-shaped trough, a set of end energy of ribbon 34
Internal there through mandrel 71, insert lock pin 32 make this end of ribbon 34 be stuck in the first bar-shaped trough of mandrel 71 7101 and not
Can be pulled, and the another set of end of ribbon 34 sequentially pass through after guide ring 33, bracelet inserted sheet 36, lower guide ring 31 also through
Mandrel 71 is internal, is stuck in the second bar-shaped trough 7102 of mandrel 71 by lock pin 32, and now ribbon 34 forms a closed loop, knits
Band 34 can only rotate with mandrel 71 and is wound around, and but can not occur relatively to slide in mandrel 71 groove.Ribbon 34 can be at upper guide ring
33, on lower guide ring 31 slidably.Lower guide ring 31 is fixed on body bottom (such as B column bottom), the belt portion to ribbon 34
342 are divided to guide and supporting role；Upper guide ring 33 is fixed on vehicle body upper end (such as B post upper end), the shoulder belt to safe ribbon 34
Part 341 guides and supporting role.When mandrel 71 turns round, it is possible to make safe ribbon 34 from strap portions 341 and waistband portion
Rolling pretension while of 342.Anti-skidding locating button 35 is fixed on safe ribbon 34 part through bracelet inserted sheet 36 with lower guide ring 31
On.When use do not worn by seat belt, anti-skidding locating button 357 can stop bracelet inserted sheet 36 to glide and positioning security band is convenient occupant
Take the position worn.
The specific works process of this bilateral pretension seat belt is as follows:
Under safe driving state, accident warning device 1 show that after ECU analyzes the current driving states of automobile is for " safety " level
Not, direct current generator 2 is in not actuated state of activation, and now the ratchet axle sleeve 85 of isolator 8 does not engages with ratchet 87, mandrel 71
Motion can not inversely pass to drive system 4 and direct current generator 2.Occupant can freely pull out safe ribbon 34, by bracelet inserted sheet
36 coordinate with bracelet, complete to wear seat belt.After occupant's release buckle inserted sheet 36 coordinates with bracelet, the bullet that backrush whirlpool spring 74 stores
Property potential energy mandrel 71 is reversely rotated, reclaim storage strap portions 341 and waistband portion 342 ribbon simultaneously.
Under dangerous driving states, the degree of danger of current environment, the exception of vehicle that accident warning device 1 obtains are dynamic
Mechanical response, the fierce manipulative behavior information of driver, show that after ECU analyzes the current driving states of automobile is for " dangerous " level
Not, send " startup pretension " to instruct to direct current generator 2.
Direct current generator 2 rotates forward, and motion and power slow down through drive system 4 and is delivered to isolator 8, first turn contracting wheel
Dish 81 band pawl 87 rotates, and driver plate 83, under the active force of depression bar 84, lags behind and turns contracting wheel disc 81 and rotate so that driver plate 83 with
Turning contracting wheel disc 81 and produce relative rotation, driving lever 82 moves near axis client, ratchet 87 and ratchet axle sleeve at driver plate chute sliding 8301
85 engagements, drive mandrel 71 to rotate, thus the quickly simultaneously strap portions 341 of pretension ribbon 34 and waistband portion before the collision
342, eliminate shoulder belt and belt wears gap, under substantially reducing occupant's health leading in collision accident and preventing occupant
Latent.
If automobile collision accident does not finally occur, accident warning device 1 sends " releasing pretension " and instructs to direct current generator 2,
Motor 2 starts reverse rotation, turns contracting wheel disc 81 and also reversely rotates, again such that driver plate 83 produces relative turning with turning contracting wheel disc 81
Angle, driving lever 82 8301 slides onto away from axis client in driver plate chute, and ratchet 87 separates with ratchet axle sleeve 85.Ribbon 34 is put automatically
Pine, is returned to initially wear state, and so far this seat belt completes a pretension, and is ready to next round pretension.
If automobile collision accident finally occurs, occupant bears huge inertia force because of car crass acceleration, and this is used to
Property power make occupant move forward and quickly pull-out ribbon 34.Because ribbon 34 is pulled out lock device 73 acceleration and angle is quick
Sense, the lock device 73 being therefore connected with mandrel 71 one end pin works and retrains the rotary freedom of mandrel 71.Work as collision speed
When higher, intensity is bigger, connect the pin fracture of lock device 73 and mandrel 71, and ratchet axle sleeve 85 makes the swingle of ratchet 87 root
88 fractures, ratchet 87 inside contracts, and the restraining forces of mandrel 71 is disappeared by isolator 8, now force-limiting device 75 one end and lock device 73 spline
Connecting and fix, the other end rotates with mandrel 71 certain angle and produces torsional deflection, and its moment of torsion makes ribbon 34 loosen gently, prevents
Ribbon pulling force is excessive to be damaged occupant.
Above-mentioned each function is merely to illustrate the present invention, and implementing of the most each function can be in technical solution of the present invention
On the basis of carry out equivalents and improvement, the most should not get rid of outside protection scope of the present invention.
Claims (5)
1. an active automobile pretension seat belt, including direct current generator (2), drive system (4), isolator (8), coiler
(7), ribbon external member (3), it is characterised in that:
Described direct current generator (2) is fixed by installing plate (5) and aluminum shell (6), and with the power train being arranged in aluminum shell (6)
System (4) connects, the control signal of response accident pre-tightening apparatus (1) and work；
Described drive system (4) is connected with direct current generator (2), by the motor power transmission after slowing down to isolator (8) and
Coiler (7)；
Described isolator (8) includes driving lever (82), driver plate (83), turns contracting wheel disc (81), ratchet (87), ratchet axle sleeve (85), lid
Plate (86), depression bar (84), spring (89)；
Described turn of contracting wheel disc (81) is connected with described drive system (4), and described ratchet axle sleeve (85) is connected with coiler (7)；
Described driver plate (83) be provided with plural number bar chute (8301), one end of described chute (8301) away from driver plate (83) axle center,
The other end is then near axle center, and it coordinates with the driving lever (82) of corresponding a plurality of ratchets (87) respectively, and described driving lever (82) can
Move in chute (8301)；
Described ratchet (87) is evenly distributed respectively to be installed on and turns in contracting wheel disc (81), and can turn contracting wheel disc (81) around being fixed on
On swingle (88) rotate；Described ratchet axle sleeve (85), cover plate (86), driver plate (83) are concentrically mounted on successively and turn contracting wheel disc
(81) on；Wherein ratchet axle sleeve (85) is installed on the inside groove turning contracting wheel disc (81), can engage with ratchet (87), cover plate outside it
(86) ratchet portions of ratchet axle sleeve (85) and ratchet (87) are encapsulated in the inside groove turning contracting wheel disc (81)；
Described depression bar (84) is arranged on aluminum shell (6), and spring (89) makes depression bar (84) active force on driver plate (83), makes driver plate
(83) rotate and lag behind and turn contracting wheel disc (81), thus driving lever (82) slides chute (8301) in, it is achieved ratchet axle sleeve (85) and
The engagement of ratchet (87) with separate；
When vehicle collision intensity is bigger, ratchet axle sleeve (85) makes the swingle (88) of ratchet (87) root rupture, coiler (7)
Being connected with between isolator (8) and completely disengage from, coiler (7) gradually loosens the ribbon (34) in described ribbon external member (3), thus
Prevent that ribbon (34) pulling force is excessive to be damaged occupant；
Described drive system (4) includes three-stage gear reduction system (41), idle gear (42), planet circular system (43)；
Described three-stage gear reduction system (41) is connected with direct current generator (2), by idle gear (42) and with turn contracting wheel disc
(81) planet circular system (43) connected is by the motor power transmission after slowing down to isolator (8)；
Described coiler (7) includes framework (72), mandrel (71), lock device (73), backrush whirlpool spring (74) and force-limiting device (75)；
Described framework (72) is connected with aluminum shell (6), and described mandrel (71) is arranged in framework (72), and lock device (73) passes through core
Axle (71) is arranged on the other end of retractor frame (72), it is achieved the lock in emergency of seat belt, and force-limiting device (75) is arranged on mandrel
(71), in, backrush whirlpool spring (74) is arranged on aluminum shell (6), is connected with square hole nested structure with mandrel (71).
A kind of active automobile pretension seat belt the most according to claim 1, it is characterised in that described ribbon external member (3)
Including ribbon (34), upper guide ring (33), bracelet inserted sheet (36), lower guide ring (31), lock pin (32) and anti-skidding locating button
(35)；
Described ribbon (34) is through upper guide ring (33), bracelet inserted sheet (36) and lower guide ring (31), described anti-skidding locating button
(35) being arranged in the ribbon (34) of bracelet inserted sheet (36) lower end, described lock pin (32) is respectively arranged at ribbon (34) two ends,
Ribbon (34) can be stuck in the bar-shaped trough that described coiler (7) mandrel (71) two ends are corresponding.
A kind of active automobile pretension seat belt the most according to claim 2, it is characterised in that described ribbon (34) two ends
For set rope structure, described lock pin (32) can be inserted directly in the trepanning of this set rope structure.
A kind of active automobile pretension seat belt the most according to claim 2, it is characterised in that described turn of contracting wheel disc (81)
Edge is provided with the groove (8101) corresponding with ratchet (87), and when vehicle collision intensity is bigger, ratchet axle sleeve (85) makes ratchet
(87) swingle (88) fracture of root so that ratchet (87) inside contracts in this groove (8101).
A kind of active automobile pretension seat belt the most according to claim 1, it is characterised in that described swingle (88) material
Matter is aluminum matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410028579.2A CN103847686B (en) | 2014-01-22 | 2014-01-22 | A kind of active automobile pretension seat belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410028579.2A CN103847686B (en) | 2014-01-22 | 2014-01-22 | A kind of active automobile pretension seat belt |
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| Publication Number | Publication Date |
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| CN103847686A CN103847686A (en) | 2014-06-11 |
| CN103847686B true CN103847686B (en) | 2016-11-23 |
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| CN201410028579.2A Expired - Fee Related CN103847686B (en) | 2014-01-22 | 2014-01-22 | A kind of active automobile pretension seat belt |
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| CN107539266B (en) * | 2017-08-03 | 2024-03-26 | 广州汽车集团股份有限公司 | Double-end pretension formula car blet |
| CN107380022A (en) * | 2017-08-28 | 2017-11-24 | 苏州因诺威汽车科技有限公司 | A kind of child safety seat active pretension shoulder belt and shoulder belt active pre-tension method |
| CN108382350A (en) * | 2018-03-13 | 2018-08-10 | 中国汽车技术研究中心有限公司 | A kind of novel active is double to pre-tighten restraint system |
| CN109398299B (en) * | 2018-11-05 | 2024-04-16 | 沈阳金杯锦恒汽车安全系统有限公司 | Retractor and method of operating the same |
| CN109577749A (en) * | 2019-01-29 | 2019-04-05 | 中车长春轨道客车股份有限公司 | A kind of electronic lock |
| JP2022119498A (en) * | 2021-02-04 | 2022-08-17 | 本田技研工業株式会社 | Seat belt device for vehicle |
| CN113306522A (en) * | 2021-06-29 | 2021-08-27 | 东风汽车有限公司东风日产乘用车公司 | Safety belt coiler, safety belt device and car |
| CN113842570B (en) * | 2021-10-27 | 2022-08-02 | 中国建筑第四工程局有限公司 | Pre-tightening force limiting device of intelligent omnibearing operation belt and use method thereof |
| CN113895633B (en) * | 2021-12-10 | 2022-02-18 | 大同航源众诚动力科技有限公司 | Safety belt device of civil aircraft |
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2014
- 2014-01-22 CN CN201410028579.2A patent/CN103847686B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN103847686A (en) | 2014-06-11 |
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