CN202130422U - Vehicular seat belt with pretightening and limiting mechanism - Google Patents
Vehicular seat belt with pretightening and limiting mechanism Download PDFInfo
- Publication number
- CN202130422U CN202130422U CN201120194788U CN201120194788U CN202130422U CN 202130422 U CN202130422 U CN 202130422U CN 201120194788 U CN201120194788 U CN 201120194788U CN 201120194788 U CN201120194788 U CN 201120194788U CN 202130422 U CN202130422 U CN 202130422U
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- China
- Prior art keywords
- clutch block
- reel
- pretension
- torsion
- safety belt
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- Expired - Lifetime
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- Automotive Seat Belt Assembly (AREA)
Abstract
An embodiment of the utility model discloses a vehicular seat belt with a pretightening and limiting mechanism, which comprises a frame, a limiter and a pretightening mechanism. The pretightening mechanism is arranged at one end of the limiter, and the limiter comprises a roll, a mandrel nose, a roll gland and a torsion bar. When a car is in collision, the direction of accelerated speed of the car with the seat belt and passengers is changed suddenly, the limiter starts to act, extra collision energy is absorbed by the aid of deformation of the torsion rod, compression force to breasts of the passengers is alleviated, and hurts to the passengers can be reduced to the greatest extent. The pretightening mechanism comprises a transmission wheel and a clutch block, wherein the clutch block is arranged between an inner cavity of the transmission wheel and a pretightening shaft of a second end of the mandrel nose. When receiving warning signals of the car, the pretightening mechanism starts to act and drives the reel to rotate synchronously, so that gaps between a passenger and the seat belt are eliminated and the passenger can be forced on a seat.
Description
Technical field
The utility model relates to a kind of safety strap, relates in particular to a kind of with the safety belt for vehicle of pretension with the limit force mechanisms.
Background technology
Automobile has become a kind of high speed vehicle easily at present; People are also increasingly high to the requirement of the safety of the safety strap of one of the important safety of automobile configuration; The type of safety strap is a lot; Lock in emergency formula safety strap, explosion type safety strap etc. are arranged, and wherein taking-up device is the core component of safety strap, has functions such as vehicle acceleration induction, belt acceleration induction.Be to disclose " a kind of Webbing retractor " in the Chinese utility model patent of 200420088311.X like number of patent application; Comprise framework, reel, wind spring mechanism; Said wind spring 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 takes place in automobile; The sense of safety strap car and the band sense restriction safety strap pulling of working, can not solve safety strap human body excessive clearance, bump momentum on one's body make situation such as the amount of compression of human abdomen and chest is excessive to the person with extra injury.
Summary of the invention
The utility model embodiment technical matters to be solved is, provides a kind of with the safety belt for vehicle of pretension with the limit force mechanisms.Pre-tightening mechanism reclaims ribbon minimizing ribbon at occupant's gap value on one's body in the time of can working as automobile appearance collision, and the part energy through limitting the force mechanisms absorbing impact to produce reduces the extra injury of occupant again.
In order to solve the problems of the technologies described above; It is a kind of with the safety belt for vehicle of pretension with the limit force mechanisms that the utility model embodiment provides; Comprise framework, force-limiting device, and the pre-tightening mechanism that is arranged at said force-limiting device one end, said force-limiting device passes the reel hole of said framework two ends setting and forms and is rotationally connected; Said force-limiting device comprises reel, mandrel head, spool gland, torsion bar; Said mandrel head first end is the torsion cap with inner chamber, and said inner chamber connects first end of said torsion bar, and said torsion cap periphery is the polygon connecting portion; Be socketed in the sliding cavity of the said reel that is complementary with said polygon connecting portion; Said spool gland is provided with second end that torsion seat coupling connects said torsion bar, on second end of said reel riveting pin is set, and corresponding to said riveting pin pin-and-hole is set on the spool gland and captives joint with said reel; Said pre-tightening mechanism comprises power wheel and places the clutch block between the pretension axle of inner chamber and said mandrel head second end of said power wheel that said clutch block is to be symmetrically distributed in said pretension axle periphery more than two or two.
Further; The polygon connecting bridge of said torsion cap is first linkage section and second linkage section; Between said first linkage section and second linkage section lock ring is set; Lockhole that is provided with on said lock ring and the said reel and the locking plate clamping that takes the shape of the letter U make said torsion cap captive joint with said reel.
Further; The be complementary arc surface of face of the intrados of said clutch block and said pretension axle; The cambered surface that the extrados of said clutch block and the intracavity sidewall of said power wheel are complementary, the distance of the axial line of the extrados of first end of said clutch block to said pretension axle is greater than the distance of the axial line of extrados to the said pretension axle of said clutch block second end.
Further, the interior contact surface of said clutch block is the serration shape or grinds flower-shaped rough surface.
Further, said pretension axle surface is for the serration shape or grind flower-shaped rough surface.
Further, between said power wheel and the said framework spacing shim is set, the bearing pin coupling is set on the said spacing shim connects the pin-and-hole that is provided with on the said clutch block, said clutch block and said pretension axle are separated.
Further, said pre-tightening mechanism also comprises gas generator and the tooth bar that connects said gas generator, and the transmission gear of said tooth bar and said power wheel setting is connected with a joggle.
Implement the utility model embodiment; When automobile when producing urgent collision, pre-tightening apparatus works, and reclaims ribbon rapidly to reduce ribbon at occupant's gap value on one's body; The occupant is forced by on the seat; Produce the collision energy of deformation absorbing redundant simultaneously by force-limiting device, reduce the amount of compression of person belly and chest, reduce the extra injury of occupant.
Description of drawings
Fig. 1 is the integral structure scheme drawing of existing safety strap;
Fig. 2 is the integral structure structural representation of the utility model;
Fig. 3 is the structural representation of the force-limiting device of the utility model;
Fig. 4 is the cutaway view of the force-limiting device of the utility model;
Fig. 5 is the structural representation of power wheel of the pre-tightening mechanism of the utility model;
Fig. 6 is the another structural representation of rotor wheel of the pre-tightening mechanism of the utility model;
Fig. 7 is the structural representation of clutch block of the pre-tightening mechanism of the utility model;
Fig. 8 is the another structural representation of rotor wheel of the pre-tightening mechanism of the utility model;
Fig. 9 is that the rotor wheel of the pre-tightening mechanism of the utility model produces the structural representation of action;
Figure 10 is that the pre-tightening mechanism of the utility model does not produce the structural representation when moving;
Figure 11 is that the pre-tightening mechanism of the utility model produces the structural representation when moving.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done to describe in detail further below.
Existing safety strap structural representation as shown in Figure 1.Comprise that framework, taking-up device, wind spring mechanism, lockable mechanism, car sense locking transmission mechanism, band propagated sensation pass mechanism, being of the utility model to the improvement of taking-up device and at the newly-increased pre-tightening mechanism of taking-up device one end.
The integral structure scheme drawing of the utility model as shown in Figure 2.
The utility model comprises framework 10, force-limiting device 20, pre-tightening mechanism 30, and framework 10 is provided with reel hole 101 and reel hole 102, and force-limiting device passes framework 10 and is rotationally connected with reel hole 101 and 102 formation of reel hole respectively.
Decomposition texture scheme drawing with reference to force-limiting device shown in Figure 3.
Force-limiting device comprises reel 201, mandrel head 202, spool gland 203, torsion bar 204, and mandrel head first end is a torsion cap 2021, and torsion cap periphery is the polygon connecting portion; Corresponding to a sliding cavity 2011 is set in the reel 201; The external appearance matching of sliding cavity 2,011 first ends and torsion cap 2021 makes torsion cap 2021 can be socketed in sliding cavity 2,011 first ends, and torsion cap 2021 set inside one inner chamber 2022 connects torsion bar first end 2041; First end, 2041 couplings of its shape and torsion bar; One torsion seat 2031 is set on the spool gland 203, and its inner chamber is connected with second end, 2042 couplings of torsion bar 204, and a riveting pin 2012 is set on second end of reel 201; On the corresponding end face of spool gland 203, pin-and-hole 2032 is set, reel 201 is captiveed joint through riveting pin 2012, pin-and-hole 2032 with spool gland 203.
What need describe is; The polygon connecting bridge of torsion cap 2021 is first connecting portion and second connecting portion; Lock ring 2022 is set wherein; Torsion cap 2021 is socketed on sliding cavity 2011, torsion cap 2021 is fixed in the sliding cavity 2011 force-limiting device cutaway view as shown in Figure 4 through lockhole 2014 and the cooresponding U-shaped locking plate 2013 that on reel 201, is provided with corresponding to the lock ring position.
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; When bump strength reaches limit value; Reel 201 is destroyed force-limiting device generation effect, the collision energy of absorbing redundant through the distortion of torsion bar 204 with the riveting pin 2012 of spool gland 203; Reduce the amount of compression of human chest, make the occupant exempt from extra injury to greatest extent.
Like Fig. 2, Fig. 5, shown in Figure 6; Pre-tightening mechanism 30 comprises power wheel 301; Clutch block 302, clutch block 302 are between two second end pretension axles 2023 that are symmetricly set in power wheel inner chamber 303 and mandrel head 202, during installation; Termination 2024 on second end of mandrel head 202 is passed the inner chamber 303 of the power wheel 301 of pre-tightening mechanism 30; Make pretension axle 2023 place the inner chamber 303 of power wheel 301, clutch block 302 symmetry respectively is installed in the inner chamber 303 of power wheel 301, and contact surface 2025 free-running fits of back clutch block 302 interior contact surfaces 3021 and pretension axle 2023 are installed.
Like Fig. 7, structural representation shown in Figure 8.Clutch block 302 curved structures; The arc surface that the contact surface 2025 of intrados 3021 and pretension axle 2023 is complementary; The cambered surface that the internal chamber wall 304 of extrados 3022 and power wheel 301 is complementary, the axial line distance of first end to the pretension axle 2023 of the extrados of clutch block 302 is greater than the axial line distance of second end to the pretension axle 2023 of extrados.
What need describe is; Have and be arranged on bearing pin easy to break on the spacing shim 305 of the pre-tightening mechanism 30 bonded assembly pin-and-hole 3023 that is complementary on the clutch block 302; Do the time spent to guarantee that pre-tightening mechanism 30 does not produce; Clutch block 302 is separated with pretension axle 2023, and reel 201 is free to the Contractible safety band.
What need describe is; When action did not take place pre-tightening mechanism 30, clutch block 302 is separated with the pretension axle 2023 of mandrel head 202, and was as shown in Figure 6; When action takes place in pre-tightening mechanism 30; Produce strength the bearing pin easy to break on the spacing shim 305 is cut off, the pretension axle 2023 of clutch block 302 and mandrel head 202 is for face contacts stressed joint, and is as shown in Figure 9.
The intrados 3021 of clutch block 302 is for helping strengthening the rough surface of friction force, and for example rough surface is for grinding the flower-shaped surface or the surface of serration shape; The pretension axle 2023 and the clutch block 302 contacted contact surfaces of pre-tightening mechanism 30 are the rough surface that helps strengthening friction force, and for example rough surface is for grinding the flower-shaped surface or the surface of serration shape.
Running condition like the pre-pressing structure of Figure 10, the utility model shown in Figure 11; Pre-tightening mechanism 30 also comprises gas generator 308; And the tooth bar 307 that connects gas generator 308; The gear teeth 306 that tooth bar is provided with several teeth groove and power wheel 301 are connected with a joggle, and clutch block 302 symmetry respectively is installed in the inner chamber 303 of power wheel 301, and Figure 10 is that pre-tightening mechanism 30 is not when moving; Clutch block is fixed by the bearing pin easy to break on the spacing shim 305, the scheme drawing that clutch block 302 and pretension axle 2023 are separated; When Figure 11 is vehicle collision; Gas generator 308 makes pre-tightening mechanism 30 produce action when receiving the vehicle early warning signal, the momentum that the bearing pin easy to break on the spacing shim 305 is produced is cut off, and clutch block contacts the bonded assembly scheme drawing with 2023 on pretension axle; Power wheel 301 is towards the radian direction rotation of clutch block 302; Because the axial line of first end to the pretension axle 2023 of the extrados of clutch block 302 distance is greater than the axial line distance of second end to the pretension axle 2023 of extrados, the extrados 3022 of clutch block 302 makes clutch block 302 radially near pretension axle 2023 under the extruding of the intracavity sidewall 304 of power wheel 301; When power wheel 301 turns over certain angle; Clutch block 302 contacts and clamps with the contact surface of pretension axle 2023 fully, and after clamping process was accomplished, pretension axle 2023 is rotation synchronously under the drive of power wheel 301; Accomplish transmission of power, thereby drive the gap that reel 201 rotation synchronously receives occupant's safety strap on one's body.
Above disclosedly be merely a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, the equivalent variations of therefore being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (7)
1. the safety belt for vehicle with pretension and limit force mechanisms is characterized in that, comprises framework, force-limiting device; And the pre-tightening mechanism that is arranged at said force-limiting device one end; Said force-limiting device passes the reel hole of said framework two ends setting and forms and is rotationally connected, and said force-limiting device comprises reel, mandrel head, spool gland, torsion bar, and said mandrel head first end is the torsion cap with inner chamber; Said inner chamber connects first end of said torsion bar; Said torsion cap periphery is the polygon connecting portion, is socketed in the sliding cavity of the said reel that is complementary with said polygon connecting portion, and said spool gland is provided with second end that torsion seat coupling connects said torsion bar; On second end of said reel riveting pin is set, corresponding to said riveting pin pin-and-hole is set on the spool gland and captives joint with said reel; Said pre-tightening mechanism comprises power wheel and places the clutch block between the pretension axle of inner chamber and said mandrel head second end of said power wheel that said clutch block is to be symmetrically distributed in said pretension axle periphery more than two or two.
2. safety belt for vehicle according to claim 1; It is characterized in that; The polygon connecting bridge of said torsion cap is first linkage section and second linkage section; Between said first linkage section and second linkage section lock ring is set, lockhole that is provided with on said lock ring and the said reel and the locking plate clamping that takes the shape of the letter U make said torsion cap captive joint with said reel.
3. safety belt for vehicle according to claim 1; It is characterized in that; The be complementary arc surface of face of the intrados of said clutch block and said pretension axle; The cambered surface that the extrados of said clutch block and the intracavity sidewall of said power wheel are complementary, the distance of the axial line of the extrados of first end of said clutch block to said pretension axle is greater than the distance of the axial line of extrados to the said pretension axle of said clutch block second end.
4. safety belt for vehicle according to claim 3 is characterized in that, the interior contact surface of said clutch block is the serration shape or grinds flower-shaped rough surface.
5. safety belt for vehicle according to claim 3 is characterized in that, said pretension axle surface is for the serration shape or grind flower-shaped rough surface.
6. according to claim 3 or 5 described safety belt for vehicle; It is characterized in that; Between said power wheel and the said framework spacing shim is set, the bearing pin coupling is set on the said spacing shim connects the pin-and-hole that is provided with on the said clutch block, said clutch block and said pretension axle are separated.
7. safety belt for vehicle according to claim 1 is characterized in that, said pre-tightening mechanism also comprises gas generator and the tooth bar that connects said gas generator, and the transmission gear of said tooth bar and said power wheel setting is connected with a joggle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120194788U CN202130422U (en) | 2011-06-10 | 2011-06-10 | Vehicular seat belt with pretightening and limiting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120194788U CN202130422U (en) | 2011-06-10 | 2011-06-10 | Vehicular seat belt with pretightening and limiting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202130422U true CN202130422U (en) | 2012-02-01 |
Family
ID=45519203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120194788U Expired - Lifetime CN202130422U (en) | 2011-06-10 | 2011-06-10 | Vehicular seat belt with pretightening and limiting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202130422U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963737A (en) * | 2013-01-29 | 2014-08-06 | 上海和励信息科技有限公司 | Safety belt winder, end cap, annular tooth ring and safety belt assembly |
| CN107757550A (en) * | 2017-12-08 | 2018-03-06 | 沈阳金杯锦恒汽车安全系统有限公司 | A kind of pretension limit type automobile safety belt retractor |
| CN109398299A (en) * | 2018-11-05 | 2019-03-01 | 沈阳金杯锦恒汽车安全系统有限公司 | Coiler and its operating method |
| CN113147663A (en) * | 2021-05-12 | 2021-07-23 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Intelligent pre-tightening locking device for safety belt and using method of intelligent pre-tightening locking device |
-
2011
- 2011-06-10 CN CN201120194788U patent/CN202130422U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963737A (en) * | 2013-01-29 | 2014-08-06 | 上海和励信息科技有限公司 | Safety belt winder, end cap, annular tooth ring and safety belt assembly |
| CN107757550A (en) * | 2017-12-08 | 2018-03-06 | 沈阳金杯锦恒汽车安全系统有限公司 | A kind of pretension limit type automobile safety belt retractor |
| CN107757550B (en) * | 2017-12-08 | 2024-02-23 | 沈阳金杯锦恒汽车安全系统有限公司 | Pretension force-limiting type automobile safety belt retractor |
| CN109398299A (en) * | 2018-11-05 | 2019-03-01 | 沈阳金杯锦恒汽车安全系统有限公司 | Coiler and its operating method |
| 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 |
| CN113147663A (en) * | 2021-05-12 | 2021-07-23 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Intelligent pre-tightening locking device for safety belt and using method of intelligent pre-tightening locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |
|
| CX01 | Expiry of patent term |