CN102294988B - Automotive seat belt retractor with emergency system - Google Patents
Automotive seat belt retractor with emergency system Download PDFInfo
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- CN102294988B CN102294988B CN201110155770.XA CN201110155770A CN102294988B CN 102294988 B CN102294988 B CN 102294988B CN 201110155770 A CN201110155770 A CN 201110155770A CN 102294988 B CN102294988 B CN 102294988B
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- retractor
- tightening
- seat belt
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Abstract
The invention discloses an automotive seat belt retractor with an emergency system, comprising a pre-tightening mechanism, a pre-tightening reminding device, a child protection mechanism and a force limiting device, wherein the pre-tightening mechanism comprises clutch blocks, wherein the parts of clutch blocks are arranged on a transmission wheel, and the other parts of clutch blocks are arranged between the cavity of the transmission wheel and the scroll of the retractor; two or more than two clutch blocks are symmetrically distributed on the periphery of the scroll of the retractor; the pre-tightening reminding device comprises a cam gear, a cam transmission mechanism and a pre-tightening reminding switch; and the force limiting device comprises a winding drum, a dabber lantern ring, a scroll gland and a torsion bar, wherein the first end of the dabber lantern ring is a torsion cap with a cavity. According to the automotive seat belt retractor, passengers can be effectively protected during emergency incidents, and the phenomenon that the seat belt generates overlarge pressure on the passengers can be avoided while the passengers are protected by tightening the seat belt.
Description
Technical field
The present invention relates to a kind of safety belt for vehicle, relate in particular to a kind of automotive seat belt retractor with calibration package.
Background technology
Along with the raising of living standards of the people and the extension of express highway, automobile is as a kind of high speed vehicle easily, enter in a large number China family, going on a tour of the whole family Holiday also becomes a kind of fashion, people are also more and more higher to the requirement of one of the important safety of automobile configuration safety strap, for satisfying the demand in high speed vehicle safety product market, the medium and high-grade automobile is when increasing high configuration safety air bag, the safety strap that belongs to one of security configuration has also had polytype safety to improve, such as lock in emergency formula safety strap, explosion type safety strap etc., wherein taking-up device is the core component of safety strap, responds to vehicle acceleration, the functions such as belt acceleration induction.Number of patent application is to disclose " a kind of Webbing retractor " in the Chinese invention patent of 200420088311.X; comprise framework; reel; spring coiling mechanism; described spring coiling mechanism comprises wind spring and coil spring box; lockable mechanism; car sense locking transmission mechanism; band sense locking transmission mechanism; ribbon etc.; these form structure can be when urgent collision situation occurs in automobile; the sense of safety strap car is worked with the band sense and is limited the safety strap pulling; can not solve automobile and when urgent collision situation, produce huge momentum; reduce safety strap frenulum people's damage; and can not when safety misadventure occurring, tighten up in advance safety strap, passenger is protected effectively and timely.
Summary of the invention
Embodiment of the invention technical matters to be solved is, a kind of automotive seat belt retractor with calibration package is provided.Can when emergency episode occurring, protect passenger timely and effectively, and when tightening up safety strap protection passenger, avoid safety strap excessive to their compressing power.
In order to solve the problems of the technologies described above, the embodiment of the invention provides the automotive seat belt retractor of a kind of usefulness with calibration package, comprise pre-tightening mechanism, pre-tightening caution device, children's health care mechanism and force limiting device, described pre-tightening mechanism comprises power wheel and places the inner chamber of described power wheel and the clutch block between the retractor spool, described clutch block is to be symmetrically distributed in described retractor spool periphery more than two or two, the interior contact surface of described clutch block is the arc surface that is complementary with described retractor spool, the arc surface of the outer contacting face of described clutch block for being complementary with described power wheel intracavity sidewall, described outer contacting face first end to retractor spool axial line relative distance greater than the distance of the second end to the retractor spool axial line; Described pre-tightening caution device comprises cam wheel, gear drive and pretension alarm switch, described pre-tightening caution device is electrically connected with electronic control package, described pretension alarm switch is provided with button, described cam wheel is provided with boss, the described button of described boss bruising, the engagement of described cam wheel and described gear drive, described gear drive and with the sun gear engagement of retractor spool axle core; Described force limiting device comprises reel, the mandrel collar, the spool gland, torsion bar, described mandrel collar first end is the torsion cap with inner chamber, described inner chamber connects the first end of described torsion bar, described torsion cap outside face is polygon, be socketed in the sliding cavity of the described reel that is complementary with described polygonal connecting portion, the polygon connecting bridge of described torsion cap is the first linkage section and the second linkage section, between described the first linkage section and the second linkage section lock ring is set, the lockhole that arranges on described lock ring and the described reel and the locking plate clamping that takes the shape of the letter U, described torsion cap is captiveed joint with described reel, described spool gland arranges the second end that torsion seat coupling connects described torsion bar, on the second end of described reel riveting pin is set, at the spool gland pin-and-hole is set corresponding to described riveting pin and captives joint with described reel.
More preferably, the interior contact surface of pre-tightening mechanism clutch block is rough surface.
More preferably, described retractor spool surface is rough surface.
More preferably, between described power wheel and the framework spacing shim is set, the bearing pin coupling is set on the described spacing shim connects the pin-and-hole that arranges on the described clutch block, described clutch block and pre-mandrel are separated.
More preferably, described gear drive is provided with gear A and gear B, and described gear A and gear B are intermeshing; Described gear A and the engagement of described cam wheel, the sun gear engagement of described gear B and described retractor spool axle core.
[0009]Implement the embodiment of the invention, have following beneficial effect:
Implement the present invention; can provide timely and effectively protection to passenger when in Vehicle Driving Cycle, emergency episode occurring; distortion by force-limiting device absorbs unnecessary collision energy when tightening up safety strap protection passenger simultaneously; reduce the human chest amount of compression, thereby avoid to greatest extent safety strap excessive and make it be subject to excessive strike to their compressing power.
Description of drawings
Fig. 1 is a kind of automotive seat belt retractor structural representation with calibration package of the present invention;
Fig. 2 is a kind of safety belt for vehicle pre-tightening mechanism clutch configuration schematic diagram with calibration package of the present invention;
Fig. 3 is a kind of safety belt for vehicle pre-tightening mechanism transmission wheel structure schematic diagram with calibration package of the present invention;
Fig. 4 is a kind of safety belt for vehicle pre-tightening caution device structural representation with calibration package of the present invention;
Fig. 5 is a kind of safety belt for vehicle force limiting device structural representation with calibration package of the present invention;
Fig. 6 is the cutaway view of a kind of safety belt for vehicle force limiting device with calibration package of the present invention.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a kind of automotive seat belt retractor structural representation with calibration package of the present invention, comprises pre-tightening mechanism 1, pre-tightening caution device 2, children's health care mechanism 3 and force limiting device 4.
Be illustrated in figure 2 as pre-tightening mechanism clutch configuration schematic diagram, comprise power wheel 11 and clutch block 12, described clutch block is two and is symmetrically distributed in described retractor spool periphery, the arc surface that the interior contact surface of described clutch block 12 and described retractor spool are complementary, the outer contacting face of described clutch block 12 are the arc surface that is complementary with described power wheel 11 intracavity sidewalls 113.
The arc radius of described clutch block 12 outer contacting face first ends 121 is greater than the arc radius of the second end 122.
As Fig. 2, shown in Figure 3 as described in the interior contact surface of clutch block 12 be rough surface.
Better, described rough surface can be the serration shape or grinds flower-shaped rough surface.
Need to prove, the retractor spool surface that is socketed with described pre-tightening mechanism 1 can be the serration shape or grinds flower-shaped rough surface.
Also need to prove, it is the preferred embodiment for the present invention that described clutch block 12 is two, and described clutch block 12 can be and is symmetrically distributed in described retractor spool periphery more than two.
In conjunction with Fig. 2, Fig. 3, when described pre-tightening mechanism 1 is done the time spent, because the arc radius of described clutch block 12 first ends 121 is greater than the arc radius of described the second end 122, described clutch block 12 turns over certain angle to described the second end 122 directions under the effect of described power wheel 11 intracavity sidewalls 113 friction force, thereby clamp described retractor spool, stop taking-up device to be rotated further, thereby tighten up safety strap.
Such as the pre-tightening caution device of Fig. 1, Fig. 4, comprise pre-switch for locking 21, cam wheel 22, the first transmission gear 23 and the second transmission gear 24.
Described cam wheel 22 is with a boss 221, described boss 221 touches the contact of described pre-switch for locking 21, described the first transmission gear 23 and described cam wheel 22 engagements, described the first transmission gear 23 meshes with the sun gear 5 of described retractor spool with described the second transmission gear 24 engagements, described the second transmission gear 24.
Described cam wheel 22 boss 221 touched the contact of described pre-switch for locking 21 when described pre-tightening caution device was in initial condition, and described pre-tightening caution device is in off-state, and described vehicle pretension signal can't arrive Webbing retractor; When safety strap is pulled out use, retractor spool drives described the second transmission gear 24 that is engaged with and rotates, thereby described cam wheel 22 is rotated, and described boss 221 leaves the contact of described alarm switch 21, the alarm switch conducting, vehicle pretension signal can normally arrive Webbing retractor.
Fig. 5 is described force limiting device structural representation, comprise reel 41, the mandrel collar 42, spool gland 43, torsion bar 44, the mandrel collar 42 first ends are torsion cap 421, described torsion cap 421 outside faces are polygon, the reel 41 interior sliding cavities 411 that arrange, the outside face coupling of sliding cavity 411 first ends and torsion cap 421, so that torsion cap 421 can be socketed in sliding cavity 411 first ends, torsion cap 421 inside arrange an inner chamber 422 and connect torsion bar first end 441, first end 441 couplings of its shape and torsion bar, one torsion seat 431 is set on the spool gland 43, its inner chamber is connected with the second end 442 couplings of torsion bar 44, the second end at reel 41 arranges a riveting pin 412, at the corresponding end face of spool gland 43 pin-and-hole 432 is set, and reel 41 and spool gland 43 are by riveting pin 412, pin-and-hole 432 captive joints.
What need to describe is, the polygon connecting bridge of torsion cap 421 is the first connecting portion and the second connecting portion, lock ring 422 is set in the middle of it, torsion cap 421 is socketed on sliding cavity 411, by lockhole 414 and the corresponding U-shaped locking plate 413 that arranges corresponding to the lock ring position on reel 41 torsion cap 421 is fixed in the sliding cavity 411.
With reference to Fig. 5, Fig. 6, when automobile bumps, safety strap vehicle and the sudden change of occupant's acceleration/accel direction, the sense of safety strap car is worked with the band sense, simultaneously reel 41 is destroyed with the riveting pin 412 of spool gland 43, force-limiting device generation effect, and the distortion by torsion bar 44 absorbs unnecessary collision energy, reduce the amount of compression of human chest, make to greatest extent the occupant exempt from extra injury.
Above disclosed is a kind of preferred embodiment of the present invention only, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (5)
1. automotive seat belt retractor with calibration package, it is characterized in that, comprise pre-tightening mechanism, pre-tightening caution device, children's health care mechanism and force limiting device, described pre-tightening mechanism comprises power wheel and places the inner chamber of described power wheel and the clutch block between the retractor spool, described clutch block is to be symmetrically distributed in described retractor spool periphery more than two or two, the interior contact surface of described clutch block is the arc surface that is complementary with described retractor spool, the arc surface of the outer contacting face of described clutch block for being complementary with described power wheel intracavity sidewall, described outer contacting face first end to retractor spool axial line relative distance greater than the distance of the second end to the retractor spool axial line; Described pre-tightening caution device comprises cam wheel, gear drive and pretension alarm switch, described pre-tightening caution device is electrically connected with electronic control package, described pretension alarm switch is provided with button, described cam wheel is provided with boss, the described button of described boss bruising, the engagement of described cam wheel and described gear drive, described gear drive and with the sun gear engagement of retractor spool axle core; Described force limiting device comprises reel, the mandrel collar, the spool gland, torsion bar, described mandrel collar first end is the torsion cap with inner chamber, described inner chamber connects the first end of described torsion bar, described torsion cap outside face is polygon, be socketed in the sliding cavity of the described reel that is complementary with described polygonal connecting portion, the polygon connecting bridge of described torsion cap is the first linkage section and the second linkage section, between described the first linkage section and the second linkage section lock ring is set, the lockhole that arranges on described lock ring and the described reel and the locking plate clamping that takes the shape of the letter U, described torsion cap is captiveed joint with described reel, described spool gland arranges the second end that torsion seat coupling connects described torsion bar, on the second end of described reel riveting pin is set, at the spool gland pin-and-hole is set corresponding to described riveting pin and captives joint with described reel.
2. the automotive seat belt retractor with calibration package as claimed in claim 1 is characterized in that, the interior contact surface of pre-tightening mechanism clutch block is rough surface.
3. the automotive seat belt retractor with calibration package as claimed in claim 1 is characterized in that, described retractor spool surface is rough surface.
4. the automotive seat belt retractor with calibration package as claimed in claim 1, it is characterized in that, between described power wheel and the framework spacing shim is set, the bearing pin coupling is set on the described spacing shim connects the pin-and-hole that arranges on the described clutch block, described clutch block and described retractor spool are separated.
5. the automotive seat belt retractor with calibration package as claimed in claim 1 is characterized in that, described gear drive is provided with gear A and gear B, and described gear A and gear B are intermeshing; Described gear A and the engagement of described cam wheel, the sun gear engagement of described gear B and described retractor spool axle core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110155770.XA CN102294988B (en) | 2011-06-10 | 2011-06-10 | Automotive seat belt retractor with emergency system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110155770.XA CN102294988B (en) | 2011-06-10 | 2011-06-10 | Automotive seat belt retractor with emergency system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102294988A CN102294988A (en) | 2011-12-28 |
| CN102294988B true CN102294988B (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110155770.XA Active CN102294988B (en) | 2011-06-10 | 2011-06-10 | Automotive seat belt retractor with emergency system |
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| Country | Link |
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| CN (1) | CN102294988B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837662A (en) * | 2012-08-30 | 2012-12-26 | 重庆光大产业有限公司 | Overturning anti-locking type structure for seat |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1128078C (en) * | 1999-02-16 | 2003-11-19 | 日商东海理化电机制作所股份有限公司 | Webbing take-up device |
| US7963473B2 (en) * | 2004-10-19 | 2011-06-21 | Autoliv Asp, Inc. | Retractor with pretensioner |
| JP4364235B2 (en) * | 2006-12-28 | 2009-11-11 | 株式会社東海理化電機製作所 | Webbing take-up device with pretensioner |
| CN100503318C (en) * | 2007-10-12 | 2009-06-24 | 深圳市大豪汽车部件有限公司 | Prefastening clutch mechanism of prefastening safety belt for automobile |
| CN202098374U (en) * | 2011-06-10 | 2012-01-04 | 广东大豪汽车零部件实业有限公司 | Vehicle safety belt retractor with emergency system |
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2011
- 2011-06-10 CN CN201110155770.XA patent/CN102294988B/en active Active
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| Publication number | Publication date |
|---|---|
| CN102294988A (en) | 2011-12-28 |
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Address after: 515000 one of plant a, No. 101, Zhuhe Road, Haojiang District, Shantou City, Guangdong Province Patentee after: GUANGDONG DAHAO VEHICLE ACCESSORY INDUSTRY & COMMERCE Co.,Ltd. Address before: 4-5th Floor, No. 2, Zhuye 3rd Street, 30th Block, Longhu District, Shantou City, Guangdong Province, 515041 Patentee before: GUANGDONG DAHAO VEHICLE ACCESSORY INDUSTRY & COMMERCE Co.,Ltd. |