CN105043787B - The safety belt pretension mechanism for testing that a kind of use damping force is carried out - Google Patents
The safety belt pretension mechanism for testing that a kind of use damping force is carried out Download PDFInfo
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- CN105043787B CN105043787B CN201510456368.3A CN201510456368A CN105043787B CN 105043787 B CN105043787 B CN 105043787B CN 201510456368 A CN201510456368 A CN 201510456368A CN 105043787 B CN105043787 B CN 105043787B
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Abstract
The invention provides the safety belt pretension mechanism for testing that a kind of use damping force is carried out, including test bracket, test bracket is provided with Webbing retractor, spring and can measure the displacement transducer that belt-strap in Webbing retractor furls length；Safety belt pretensioner is provided with Webbing retractor, safety belt pretensioner is by controller control；Belt-strap draws upwards, through a ribbon force snesor, be fixed on spring bottom end.It is safety belt pretension mechanism for testing simple structure that use damping force of the invention is carried out, easy to operate, the pretension backrush distance and pretightning force of safety belt can be convenient for measuring, test result is accurate, simple and clear, it is convenient in test that safety belt is installed, save man-hour, reduce testing cost, it is ensured that the reliability of test.
Description
Technical field
The invention belongs to auto parts and components testing field, more particularly, to the safety belt pretension that a kind of use damping force is carried out
Mechanism for testing.
Background technology
It is occupant safety is safeguarded in vehicle collisions important with indispensable safety aid that safety belt is by bus
Equipment.Attention with people to vehicle safety performance, the safety belt for having pretension function at present has become most of vehicles
Standard configuration.There is initial time and be triggered in the safety belt with pretension function, safety belt is tightened, and it can be more in collision
Good constraint occupant, occupant's amount of travelling forward is excessive in preventing collision, so that being collided with Front Frame causes injury.
The pretension feature for obtaining alternative safety belt is tested by simple parts, carrying it into vehicle in new car design touches
Hit and be analyzed calculating in performance design, and it is optimized, having become the vehicle security of standard can develop design stream
Journey.But current few equipment can be tested by safety belt parts, simply directly measure safety belt pretension feature, so
Can only replace its real features with hypothesis feature when input safety belt pretension performance characteristic is needed in CAE simulation calculations.
The content of the invention
In view of this, the present invention is directed to propose a kind of safety belt pretension mechanism for testing that carries out of use damping force, to solve
There is no equipment or existing equipment to be tested by safety belt parts, simply directly measure safety belt pretension feature.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
The safety belt pretension mechanism for testing that a kind of use damping force is carried out, including test bracket, set on the test bracket
There are Webbing retractor, spring and the displacement sensing of belt-strap backrush distance in the Webbing retractor can be measured
Device；
Safety belt pretensioner is provided with the Webbing retractor, the safety belt pretensioner is by controller control；
The belt-strap drawn upwards by Webbing retractor, through a ribbon force snesor, be fixed on the bullet
Spring bottom.
Further, the spring bottom end connects the belt-strap by installing plate.
Preferably, institute's displacement sensors are connected on the installing plate by bracing wire.
Further, the Webbing retractor is arranged on test bracket lower section by mounting screw.
Further, the maximum elastic force of the spring is 2000N-5000N.
Further, the Webbing retractor is located at the underface of the spring.
Preferably, the belt-strap is located on the axial line of the spring.
Relative to prior art, the safety belt pretension mechanism for testing that use damping force of the present invention is carried out has following
Advantage：
It is safety belt pretension mechanism for testing simple structure that use damping force of the present invention is carried out, easy to operate, can be with
Occupant is to the drag of ribbon backrush under simulating truth by spring force, while accurate directly measurement safety belt pretension mould
The pretension the strength and the displacement relation of block.
Brief description of the drawings
The accompanying drawing for constituting a part of the invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the safety belt pretension mechanism for testing that the use damping force described in the embodiment of the present invention is carried out
Figure；
Fig. 2 is the safety belt pretension backrush displacement-time curve measured in embodiment；
Fig. 3 is the safety belt pretension force-time curve measured in embodiment.
Description of reference numerals：
1- test brackets, 2- mounting screws, 3- springs, 4- installing plates, 5- displacement transducers, 6- bracing wires, 7- ribbons power is passed
Sensor, 8- Webbing retractors, 9- safety belt pretension signal input ports, 10- belt-straps.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The present invention provides the safety belt pretension mechanism for testing that a kind of use damping force is carried out, as shown in figure 1, including test branch
Frame 1, test bracket 1 is provided with Webbing retractor 8, spring 3 and can measure belt-strap 10 times in Webbing retractor 8
Roll up the displacement transducer 5 of distance；
Safety belt pretensioner is provided with Webbing retractor 8, safety belt pretensioner is by controller control；Controller control peace
Whether is the full work with preloader, and Webbing retractor 8 is provided with safety belt pretension signal input port 9 in the present embodiment, control
Device processed is connected with safety belt pretension signal input port 9；
Belt-strap 10 by Webbing retractor 8 upwards draw, through a ribbon force snesor 7, be fixed on the bottom of spring 3
End.
The course of work of this example：During test, start controller, safety belt pretension signal input port 9 is pacified after being triggered
Full band preloader is started working, and the stress of belt-strap 10 measures ribbon power i.e. safety belt pretightning force by ribbon force snesor 7
Real-time change curve.Partial security band ribbon 10 is retracted in Webbing retractor 8, can be measured by displacement transducer 5
Ribbon backrush displacement.Drag of the occupant to ribbon during 10 backrush of belt-strap under the simulation truth of spring 3.By the dress
Putting can tense produced tension force come occupant in simulating true environment to the tensile force of safety belt and backrush retardance using spring 3
Power, and directly safety belt pretension feature is tested by ribbon force snesor 7 and displacement transducer 5, obtain safety belt true
Real pretightning force displacement curve, as shown in Figures 2 and 3.
Safety belt pretightning force and the ratio of displacement are retardation coefficient,
Both：K=F/S
Mode relation of the retardation coefficient with occupant's wear safety belt in full scale vehicle collision is more close, in the testing experiment
With damper be spring damping capacity feature it is more close.
Safety belt pretension force-time curve is measured by Fig. 3 and rises slope over 10 β, horizontal segment time duration and plateau value
Size, these parameters can be evaluated the safety belt performance level the binding effect of occupant in vehicle collision.At this
The backrush distance that the ribbon power and displacement transducer 5 that ribbon force snesor 7 is measured during pretension in invention are measured, this is measured
On the one hand ribbon power size and backrush displacement can be used to evaluate the safety belt pretension performance, on the other hand may be used as the safety
The |input paramete of the vehicle safety performance simulation calculation of band.
Further, the bottom of spring 3 passes through the safety harness ribbon 10 of installing plate 4.According to the difference of targeted passenger type
It is different to range preferably from 0.1- to the stiffness coefficient of spring 3 and the quality counterweight of installing plate 4, the quality counterweight of installing plate 4
1kg, the maximum elastic force of spring 3 is 2000-5000N.
Preferably, displacement transducer 5 is connected on installing plate 4 by bracing wire 6.The installing plate in 10 backrush of belt-strap
4 are moved downward with ribbon, and ribbon backrush distance, the belt-strap for so measuring can be measured by displacement transducer bracing wire 6
10 backrush distance is more accurate, and test is more convenient.
Further, Webbing retractor 8 is arranged on the lower section of test bracket 1 by mounting screw 2.
Further, Webbing retractor 8 is located at the underface of spring 3.
Preferably, belt-strap 10 is located on the axial line of spring 3.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (7)
1. the safety belt pretension mechanism for testing that a kind of use damping force is carried out, it is characterised in that：It is described including test bracket (1)
Test bracket (1) is provided with Webbing retractor (8), spring (3) and can measure the Webbing retractor (8) interior safety belt
The displacement transducer (5) of ribbon (10) backrush distance；
Safety belt pretensioner is provided with the Webbing retractor (8), the safety belt pretensioner is by controller control；
The belt-strap (10) by Webbing retractor (8) upwards draw, through a ribbon force snesor (7), be fixed on
Spring (3) bottom.
2. the safety belt pretension mechanism for testing that use damping force according to claim 1 is carried out, it is characterised in that：The bullet
Spring (3) bottom connects the belt-strap (10) by installing plate (4).
3. the safety belt pretension mechanism for testing that use damping force according to claim 2 is carried out, it is characterised in that：Institute's rheme
Displacement sensor (5) is connected on the installing plate (4) by bracing wire (6).
4. the safety belt pretension mechanism for testing that the use damping force according to claim 1,2 or 3 any one is carried out, its feature
It is：The Webbing retractor (8) is by mounting screw (2) installed in the test bracket (1) bottom.
5. the safety belt pretension mechanism for testing that use damping force according to claim 4 is carried out, it is characterised in that：The bullet
The maximum elastic force of spring (3) is 2000-5000N.
6. the safety belt pretension mechanism for testing that the use damping force according to claim 1,2,3 or 5 any one is carried out, it is special
Levy and be：Underface of the Webbing retractor (8) positioned at the spring (3).
7. the safety belt pretension mechanism for testing that use damping force according to claim 6 is carried out, it is characterised in that：The peace
Entirely with ribbon (10) on the axial line of the spring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510456368.3A CN105043787B (en) | 2015-07-29 | 2015-07-29 | The safety belt pretension mechanism for testing that a kind of use damping force is carried out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510456368.3A CN105043787B (en) | 2015-07-29 | 2015-07-29 | The safety belt pretension mechanism for testing that a kind of use damping force is carried out |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105043787A CN105043787A (en) | 2015-11-11 |
| CN105043787B true CN105043787B (en) | 2017-06-23 |
Family
ID=54450505
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510456368.3A Active CN105043787B (en) | 2015-07-29 | 2015-07-29 | The safety belt pretension mechanism for testing that a kind of use damping force is carried out |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2754079Y (en) * | 2004-07-09 | 2006-01-25 | 中国第一汽车集团公司 | Automobile safety belt pretensioner test device |
| EP2492158A1 (en) * | 2011-02-28 | 2012-08-29 | Volvo Car Corporation | Seat belt assembly |
| CN102975684A (en) * | 2011-09-06 | 2013-03-20 | 现代自动车株式会社 | Seat belt pretensioner for vehicle and method for protecting passenger using the same |
| CN103213559A (en) * | 2013-05-08 | 2013-07-24 | 黄绍勇 | Pre-tightening automotive safety belt |
| CN204855168U (en) * | 2015-07-29 | 2015-12-09 | 中国汽车技术研究中心 | Safety belt pretension accredited testing organization that use damping force goes on |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8469400B2 (en) * | 2009-02-23 | 2013-06-25 | Amsafe, Inc. (Phoenix Group) | Seat harness pretensioner |
-
2015
- 2015-07-29 CN CN201510456368.3A patent/CN105043787B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2754079Y (en) * | 2004-07-09 | 2006-01-25 | 中国第一汽车集团公司 | Automobile safety belt pretensioner test device |
| EP2492158A1 (en) * | 2011-02-28 | 2012-08-29 | Volvo Car Corporation | Seat belt assembly |
| CN102975684A (en) * | 2011-09-06 | 2013-03-20 | 现代自动车株式会社 | Seat belt pretensioner for vehicle and method for protecting passenger using the same |
| CN103213559A (en) * | 2013-05-08 | 2013-07-24 | 黄绍勇 | Pre-tightening automotive safety belt |
| CN204855168U (en) * | 2015-07-29 | 2015-12-09 | 中国汽车技术研究中心 | Safety belt pretension accredited testing organization that use damping force goes on |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105043787A (en) | 2015-11-11 |
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