CN201484353U - Automobile safety belt retractor - Google Patents
Automobile safety belt retractor Download PDFInfo
- Publication number
- CN201484353U CN201484353U CN2009201862611U CN200920186261U CN201484353U CN 201484353 U CN201484353 U CN 201484353U CN 2009201862611 U CN2009201862611 U CN 2009201862611U CN 200920186261 U CN200920186261 U CN 200920186261U CN 201484353 U CN201484353 U CN 201484353U
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- CN
- China
- Prior art keywords
- tube
- advance
- furling
- furling tube
- safety belt
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to an automobile safety belt retractor, which is capable of being used repeatedly and having pre-shrinking and tensioning restriction functions. The retractor comprises a retracting tube and a re-shrinking tube, a sealed end of the retracting tube is positioned inside the pre-shrinking tube, a metal rod is arranged inside the retracting tube and connected with a safety belt, a sealing ring is arranged upwards the inner diameter of the retracting tube and sleeved on the metal rod, cutting thickening fluid is arranged between the sealing ring and the sealed end of the retracting tube, an electromagnet is arranged at the sealed end inside the pre-shrinking tube, a touch switch is arranged inside an opening end of the re-shrinking tube, an external switch is arranged on the outer wall of the re-shrinking tube, and the electromagnet is respectively connected with the external switch and the touch switch via conducting wires. By employing the thickening rheological property of the cutting thickening fluid and by means of the structural design, the automobile safety belt retractor has pre-shrinking and pre-tensioning restriction functions. Due to reversibility of cutting and thickening, the automobile safety belt retractor can be used repeatedly, has long service life, stable performance and safe and reliable effects, and is excellent to make up shortcomings of past safety belt retractors.
Description
Technical field
The utility model relates to a kind of automobile safety belt retractor, specifically a kind of reusable have tighten in advance and the automobile safety belt retractor of pulling force limitation function.
Background technology
At present, the safety strap that generally uses on the automobile mainly is made up of ribbon, taking-up device and mounting fixing parts parts such as (annexes).And, can be divided into two kinds of lock in emergency formula and prefastenings again according to the difference of its taking-up device.
Lock in emergency formula taking-up device can be with the ribbon auto lock when vehicle runs into the emergency state, and occupant's free motion on the seat under normal circumstances.This is a widely used Webbing retractor on low end vehicle at present.Lock in emergency formula safety strap plays good protective effect to member in the car, but significant disadvantages is also arranged.Though at first this pure mechanical device is locking fast, but move forward still having in a flash by a small margin of collision, passenger's life is often just between a line in collision case, how many healths of safety strap and passenger still has some gaps in addition, and this also can cause passenger's displacement lengthening.
For better protection rider's security development goes out the belt with pre-load device taking-up device.Belt with pre-load device is meant and bump is taking place in a flash that taking-up device can to eliminate the gap between safety strap and the health, reduce occupant's displacement automatically with the past segment distance of pulling back of safety strap.One cover exploder is arranged in the present belt with pre-load device furling mechanism, and the energy by blast during triggering promotes the taking-up device rotation, thus the effect that realization is tightened up.Its protection effect is better than lock in emergency formula safety strap.But this kind safety strap also has its weak point.At first, after accident took place, safety strap had been tightened under the effect of pre-tightening device; And after human body was subjected to the force of inertia peak value in the past, safety strap was still tight, can damage human body.Adding extra pulling force killer can increase the complexity and the cost of structure again.In addition, fire device " shelf-life " restriction is arranged.And be disposable, trigger once just can not reuse later, just must go repair plant more to renew afterwards.
The utility model content
Should have the pre-tightening function in order to solve car belt, realize the problem of pulling force limitation function again, the utility model provide a kind of reusable have simultaneously tighten in advance and the Webbing retractor of pulling force limitation function.
Concrete technical design scheme is as follows:
Automobile safety belt retractor comprises furling tube 2 and tightens tube 3 in advance, furling tube 2 and tighten tube 3 in advance and be the sealing of an axial end, and the tubular of other end opening, and the closed end of furling tube 2 is positioned at and tightens tins 3 in advance;
Described tightening in advance on tube 3 inwalls is arranged with axial slide 17, its inner sealing end is provided with electromagnet 11, its open end medial surface is provided with touch-type switch 8, and its outer wall is provided with external switch 4, and electromagnet 11 is connecting external switch 4 and touch-type switch 8 respectively by lead;
Be positioned at the same footpath, furling tube 2 outer walls middle part that tightens tube 3 in advance and upwards be arranged with slide block 16, described slide block 16 is positioned at the chute 17 that tightens tube 3 in advance; Be provided with boss with touch-type switch 8 cooresponding furling tube 2 outer walls, boss is provided with touching conductor 9, is installed with spring on the touching conductor 9; Furling tube 2 closed ends relative with electromagnet 11 are provided with conductor block 14; Furling tube 2 closed ends of conductor block 14 both sides are connecting spring 12 respectively, the other end of both sides spring 12 connecting respectively tighten in advance the tube 3;
Be arranged with axial slide on furling tube 2 inwalls, be provided with Metallic rod 7 in it, an end of Metallic rod 7 is connecting safety strap 1; The footpath, middle part upwards is provided with seal ring 13 in the furling tube 2, and seal ring 13 is enclosed within on the Metallic rod 7; Gap between seal ring 13 inboards and furling tube 2 closed ends is provided with shear thickening fluid 15; Be arranged with two convex clips and two Metallic rod slide blocks 10 on the Metallic rod 7 in seal ring 13 outsides, two convex clips are connecting two furling tube springs 6 respectively, the other end of two furling tube springs 6 is connecting the open end of furling tube 2 respectively, and two Metallic rod slide blocks 10 lay respectively in the chute of furling tube 2 inwalls.
The conductor block 14 of described furling tube is the 15-30 millimeter apart from the distance between the electromagnet 11 that tightens tube 3 in advance.
Described furling tube 2 and tighten in advance the tube 3 materials be hard aluminium alloy.
Described Metallic rod 7 materials are hard aluminium alloy.
Described spring is the copper spring of lightweight.
The utility model has used shear thickening fluid, shear thickening fluid is a kind of suspension, form by discrete phase and dispersed medium, when bearing low rate of strain, apparent viscosity (AV) is smaller, when bearing high rate of strain load, the apparent viscosity (AV) generation great variety of contact interface, even change solid phase mutually into by fluid; After load is cancelled, can be the fluid phase from solid transformation again, this variation be reversible.Utilize the thickening rheological behavior of shear thickening fluid,, can be applied to Webbing retractor, it is had tighten the pretension limitation function in advance by structure design of the present utility model.Because the invertibility of shear thickening makes it can recycle long service life.
The utility model stable in properties, safe and reliable, and can repeated usage, remedied the weak point of existing automobile safety belt retractor well.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is the normal activity state,
Fig. 3 is for tightening state in advance.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1, automobile safety belt retractor comprises furling tube 2 and tightens tube 3 in advance, furling tube 2 and tighten tube 3 in advance and be the sealing of an axial end, and the tubular of other end opening, and the closed end of furling tube 2 is positioned at and tightens tins 3 in advance; Furling tube 2 and tighten in advance the tube 3 materials be hard aluminium alloy.
Tighten in advance on tube 3 inwalls and be arranged with axial slide 17, its inner sealing end is provided with electromagnet 11, and its open end medial surface is provided with touch-type switch 8, and its outer wall is provided with external switch 4, and electromagnet 11 is connecting external switch 4 and touch-type switch 8 respectively by lead;
Be positioned at the same footpath, furling tube 2 outer walls middle part that tightens tube 3 in advance and upwards be arranged with slide block 16, slide block 16 is positioned at the chute 17 that tightens tube 3 in advance, and furling tube 2 can be endwisely slipped with respect to tightening tube 3 in advance; Be provided with boss with touch-type switch 8 cooresponding furling tube 2 outer walls, boss is provided with touching conductor 9, on the touching conductor 9 spring is installed; Furling tube 2 closed ends relative with electromagnet 11 are provided with conductor block 14; Furling tube 2 closed ends of conductor block 14 both sides are connecting spring 12 respectively, the other end of both sides spring 12 connecting respectively tighten in advance the tube 3; The conductor block 14 of furling tube is 20 millimeters apart from the distance between the electromagnet 11 that tightens tube 3 in advance.
Be arranged with axial slide on furling tube 2 inwalls, be provided with Metallic rod 7 in it, Metallic rod 7 materials are hard aluminium alloy; One end of Metallic rod 7 is connecting safety strap 1 by attaching parts 5; The footpath, middle part upwards is provided with seal ring 13 in the furling tube 2, and seal ring 13 is enclosed within on the Metallic rod 7; Gap between seal ring 13 inboards and furling tube 2 closed ends is provided with shear thickening fluid 15, and seal ring 13 prevents that shear thickening fluid from leaking; Be arranged with two convex clips and two Metallic rod slide blocks 10 on the Metallic rod 7 in seal ring 13 outsides, two convex clips are connecting two furling tube springs 6 respectively, the other end of two furling tube springs 6 is connecting the open end of furling tube 2 respectively, two Metallic rod slide blocks 10 lay respectively in the chute of furling tube 2 inwalls, and can in chute, slide, Metallic rod 7 can be endwisely slipped with respect to furling tube 2.
Metallic rod 7 materials are hard aluminium alloy.
During use, will tighten tube 3 in advance and be fixedly installed in the vehicle seat place and get final product.When initial condition, can make Metallic rod 7 be positioned at the bottom of furling tube 2.When passenger fastened one's safety belt, because size difference or can freely spur Metallic rod 7 when doing small size motion, 6 pairs of Metallic rod 7 of furling tube spring applied the power of gentleness, so that safety strap 1 freely changes length.
With external switch 4 closures, fasten one's safety belt 1 behind the passenger loading.During cruising, if passenger's normal activity in car drives Metallic rod 7 by safety strap and moves; at this moment, Metallic rod 7 moving velocitys are slow, and shear thickening fluid 15 bears when hanging down rate of strain; apparent viscosity (AV) is smaller, and this moment, safety strap applied soft pulling force to the passenger, and the passenger can comfortablely be taken.This moment is because shear thickening fluid 15 apparent viscosity (AVies are little, and it, tightens function in advance and can not start less than making touch-type switch 8 and the touching conductor 9 required power of colliding furling tube 2 applied forces.
When accident appears in automobile, bump, the vehicle body deceleration motion, and passenger's body can move forward owing to inertia, when passenger's relative velocity reaches a particular value V (as 5m/s, shear thickening fluid 15 bears the improved strain rate, apparent viscosity (AV) increases, furling tube 2 applied forces greater than making touch-type switch 8 and the touching conductor 9 required power of colliding, are made touch-type switch 8 closures, electromagnet 11 conductings, moment produces powerful pulling force and attracts conductor block 14, force the motion of furling tube 2 reversing senses, can make this moment shear thickening fluid 15 bear rate of strain moment increase, apparent viscosity (AV) increases rapidly, produce friction force and act on Metallic rod 7, make Metallic rod 7 and move to right, safety strap is in time tightened up, without hesitation the people " is pressed " on the seat in first moment that accident takes place with respect to tightening tube 3 in advance.After this, increase with speed, shear thickening fluid 15 apparent viscosity (AVies continue to increase, and Metallic rod 7 is produced great force, and the passenger is firmly fixing on the seat, the protection passenger safety.
After treating that the impulsive force peak value in the past, along with reducing of relative velocity, shear thickening fluid 15 apparent viscosity (AVies reduce, and the application force of Metallic rod 7 is reduced, and can loosen safety strap gradually, avoid Yin Lali excessive and make people's rib injured.
Under the combined action of safety strap pre-tightening function and pulling force limitation function, the protective capability of safety strap has almost reached perfect condition.Afterwards,, device can be placed initial condition, can reuse as long as open external switch 4.
Taking-up device motion process initial condition is seen Fig. 1, and the normal activity state is seen Fig. 2, and the state that tightens is in advance seen Fig. 3.
Claims (5)
1. automobile safety belt retractor is characterized in that comprising furling tube (2) and tightens tube (3) in advance, furling tube (2) and tighten tube (3) in advance and be axial end sealing, and the tubular of other end opening, and the closed end of furling tube (2) is positioned at and tightens tin (3) in advance;
Described tightening in advance on tube (3) inwall is arranged with axial slide (17), its inner sealing end is provided with electromagnet (11), its open end medial surface is provided with touch-type switch (8), its outer wall is provided with external switch (4), and electromagnet (11) is connecting external switch (4) and touch-type switch (8) respectively by lead;
Be positioned at the same footpath, furling tube (2) outer wall middle part that tightens tube (3) in advance and upwards be arranged with slide block (16), described slide block (16) is positioned at the chute (17) that tightens tube (3) in advance; Be provided with boss with the cooresponding furling tube of touch-type switch (8) (2) outer wall, boss is provided with touching conductor (9), is installed with spring on the touching conductor (9); Furling tube (2) closed end relative with electromagnet (11) is provided with conductor block (14); Furling tube (2) closed end of conductor block (14) both sides is connecting spring (12) respectively, the other end of both sides spring (12) connecting respectively tighten in advance the tube (3);
Be arranged with axial slide on furling tube (2) inwall, be provided with Metallic rod (7) in it, an end of Metallic rod (7) is connecting safety strap (1); The footpath, middle part upwards is provided with seal ring (13) in the furling tube (2), and seal ring (13) is enclosed within on the Metallic rod (7); Gap between seal ring (13) inboard and furling tube (2) closed end is provided with shear thickening fluid (15); Be arranged with two convex clips and two Metallic rod slide blocks (10) on the Metallic rod (7) in seal ring (13) outside, two convex clips are connecting two furling tube springs (6) respectively, the other end of two furling tube springs (6) is connecting the open end of furling tube (2) respectively, and two Metallic rod slide blocks (10) lay respectively in the chute of furling tube (2) inwall.
2. automobile safety belt retractor according to claim 1 is characterized in that: the conductor block of described furling tube (14) is the 15-30 millimeter apart from the distance between the electromagnet (11) that tightens tube (3) in advance.
3. automobile safety belt retractor according to claim 1 is characterized in that: described furling tube (2) and tighten in advance the tube (a 3) material be hard aluminium alloy.
4. automobile safety belt retractor according to claim 1 is characterized in that: described Metallic rod (7) material is a hard aluminium alloy.
5. automobile safety belt retractor according to claim 1 is characterized in that: described spring is the copper spring of lightweight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201862611U CN201484353U (en) | 2009-07-06 | 2009-07-06 | Automobile safety belt retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201862611U CN201484353U (en) | 2009-07-06 | 2009-07-06 | Automobile safety belt retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201484353U true CN201484353U (en) | 2010-05-26 |
Family
ID=42423248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201862611U Expired - Lifetime CN201484353U (en) | 2009-07-06 | 2009-07-06 | Automobile safety belt retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201484353U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104908704A (en) * | 2014-03-14 | 2015-09-16 | 上海汽车集团股份有限公司 | Safety belt device |
| CN105620413A (en) * | 2016-03-03 | 2016-06-01 | 东方久乐汽车电子（上海）有限公司 | Warning type safety belt using elastic deformation as warning power |
-
2009
- 2009-07-06 CN CN2009201862611U patent/CN201484353U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104908704A (en) * | 2014-03-14 | 2015-09-16 | 上海汽车集团股份有限公司 | Safety belt device |
| CN104908704B (en) * | 2014-03-14 | 2017-06-06 | 上海汽车集团股份有限公司 | Seat belt apparatus |
| CN105620413A (en) * | 2016-03-03 | 2016-06-01 | 东方久乐汽车电子（上海）有限公司 | Warning type safety belt using elastic deformation as warning power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100526 Effective date of abandoning: 20090706 |