CN102107645A - Pre-stressed seat belt with automatic trigger function - Google Patents
Pre-stressed seat belt with automatic trigger function Download PDFInfo
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- CN102107645A CN102107645A CN2009102007930A CN200910200793A CN102107645A CN 102107645 A CN102107645 A CN 102107645A CN 2009102007930 A CN2009102007930 A CN 2009102007930A CN 200910200793 A CN200910200793 A CN 200910200793A CN 102107645 A CN102107645 A CN 102107645A
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- belt
- load device
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Abstract
The invention discloses a pre-stressed seat belt with an automatic trigger function. In the pre-stressed seat belt, a fixed handle of a rolling device is made into a bowed handle; the head and the tail of the bowed handle are connected in series with a signal trigger wire; a trigger switch is arranged on the trigger wire; and the rolling device of the pre-stressed seat belt is fixed on a vehicle through the tail of the bowed handle. When the vehicle is in a collision accident, passengers on the vehicle are impacted forwards, the rolling devices of the passengers are pulled upwards by the rolling devices of the pre-stressed seat belts; when the pulling force of the bowed handle from the passengers is over a preset force value, the bow of the bowed handle is stretched under the action of the pulling force; and when the stretched distance is over a preset value, the signal trigger wire fixed on the head and the tail of the bowed handle is triggered, and a trigger signal ignites a gas generator of a pre-stressed device of the pre-stressed seat belt to play a pre-stress effect. The pre-stressed seat belt is used in the vehicle to protect safety of passengers.
Description
Technical field
The present invention relates to a kind of safety belt for vehicle, particularly relate to a kind of belt with pre-load device with automatic triggering function.
Technical background
More and more along with China's car opertion amount now, in the prior art, comfortable for the occupant usually, the power that furls of safety strap can not be excessive; But if the excessive clearance between safety strap and the human body, when bumping, the gap of this existence will reduce the effective range of safety strap, reduce the safe effect of safety strap.Belt with pre-load device uses pre-tightening apparatus, when collision acquires a certain degree, starts pre-tightening apparatus, drive spool device mandrel reversed turning, make belt-strap shorten certain distance, effectively eliminate the gap between human body and the safety strap, thereby improve the useful effect of safety strap.Multiple belt with pre-load device technology is arranged now, a kind of structure of later-model belt with pre-load device is disclosed in disclosed number of patent application 200720058166.4 denominations of invention of 2008.10.08 " a kind of prefastening clutch mechanism of prefastening safety belt for automobile " as Patent Office of the People's Republic of China, but itself can not trigger this pre-pressing structure, must could ignite gas generator by sensor.And for example Patent Office of the People's Republic of China discloses a kind of new belt with pre-load device in the disclosed number of patent application 200720096967.X of 2008.08.20 denomination of invention " belt with pre-load device ", but the belt with pre-load device of this utility model does not equally have automatic pretension to trigger function yet, must obtain energizing signal from other sensor as safety air bag, if and obtain energizing signal from safety air bag, just must belt with pre-load device could be installed having under the condition of safety air bag, the range of use of belt with pre-load device is restricted.Therefore, be badly in need of a kind of safety strap that can make itself now and have the belt with pre-load device that triggers function.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming, a kind of simple in structure, belt with pre-load device with automatic triggering function that reliability is high is provided.
For this reason, the invention provides a kind of belt with pre-load device with automatic triggering function, the fixed handle of described belt with pre-load device spool device is made the bow handle of tortuous bow shape,, touch switch triggering to install on the line at bow and signal triggering line of bow tail series connection of bow handle.When the collision happens accident, occupant on the car impacts forward, the taking-up device of belt with pre-load device is upwards drawn by occupant's impulsive force, when the pulling force that is subjected to the occupant when the bow handle surpasses the power value of regulation, the tortuous bow of bow handle is drawn back under the effect of pulling force, and when surpassing predefined value when spacing out, the signal triggering line that is fixed on bow and bow tail is triggered, energizing signal is ignited the gas generator of the pre-tightening apparatus of belt with pre-load device, produces the pretension effect.When not having an accident, because the predefined power value of the little out of reach of occupant's impulsive force forward, the length that is triggered apart from out of reach signal triggering line that the bow handle is drawn back so trigger switch can not produce connection, can not ignited the gas generator of the pre-tightening apparatus of belt with pre-load device.The belt with pre-load device taking-up device is fixing onboard by the bow tail.
Have in the belt with pre-load device of automatic triggering function at another kind provided by the invention, force rod of series connection between described bow and bow tail, the one end is fixed on bow, the other end passes the bow tail, pass the bottom of bow tail at force rod stressed pin is installed, socket energizing signal switch below the stressed pin of force rod after stressed pin moves down, is communicated with the pre-tightening apparatus that the energizing signal switch is ignited belt with pre-load device.Force rod is installed is guaranteed to have only the occupant could promote the energizing signal switch on the one hand, and the initial force value of force rod can accurately design, and has guaranteed the accuracy of controlling the initial force value that the pulling force of belt with pre-load device taking-up device has surpassed force rod; On the other hand, the bow handle because the protection of the initial force value of force rod can not spurred repeatedly, has guaranteed the effective life of bow handle at ordinary times.Described force rod is the reducing bar, the diameter of described reducing bar between bow and bow tail is less than bending the tail bottom, connecting portion at two different-diameters is the excessive part of taper, it below the bow tail metal limit power ring that is socketed on the reducing bar, and the socket identical with the excessive part of taper of the interior shape of metal limit power ring thereon, socket energizing signal switch below metal limit power ring when metal limit power hoop moves down, is communicated with the pre-tightening apparatus that the energizing signal switch is ignited belt with pre-load device.Simultaneously, because reducing bar diameter under the effect of metal limit power ring is converted into occupant's impulsive force forward the contraction deformation power of reducing bar from large to small in process from large to small, the reducing bar is done work, thereby occupant's impact energy is absorbed, guaranteed occupant's safety.Certainly, also can adopt other mode, as described in bearer cable of series connection between bow and the bow tail, the one end is fixed on bow, the other end passes the bow tail, passes metal of bottom socket limit power ring of bow tail at bearer cable; The top of the stressed ring of described metal is blocked the bottom with bearer cable and is toroidal, and socket energizing signal switch below the metal limit power ring of bearer cable when bearer cable moves down, is communicated with the pre-tightening apparatus that the energizing signal switch is ignited belt with pre-load device.Also can and bend stressed tube of series connection between the tail at described bow, the one end is fixed on bow, and the other end passes the bow tail; Pass the bottom socket metal limit power ring of bow tail at force rod; Described stressed tube is an adapter bonnet, diameter between bow and bow tail is less than bending the tail bottom, connecting portion at two different-diameters is the excessive part of taper, it below the bow tail metal limit power ring that is socketed on the reducing bar, and the socket identical with the excessive part of taper of the interior shape of metal limit power ring thereon, socket energizing signal switch below the stressed pin of force rod after stressed pin moves down, is communicated with the pre-tightening apparatus that the energizing signal switch is ignited belt with pre-load device.
Have in the belt with pre-load device of automatic triggering function at another kind provided by the invention, described stressed tube is a pancake between bow and bow tail, is circular in the bottom of the outside of bending tail, is smooth excessive part between pancake and the circle; And the socket identical with smooth excessive part of the interior shape of metal limit power ring thereon.
Have in the belt with pre-load device of automatic triggering function at another kind provided by the invention, if the installation metal is not limit the power ring below force rod, bearer cable, stressed tube, make and have collapsed shape and directly will bend hole on the bow tail of handle, can produce the effect that absorbs occupant's impact energy equally.
Have in the belt with pre-load device of automatic triggering function at another kind provided by the invention, described trigger signal switch is to be connected between the bow and bow tail of bow handle, walking abreast with force rod or reducing bar or bearer cable or stressed tube or flat tube, is not that socket is superincumbent.
Belt with pre-load device with automatic triggering function provided by the invention is compared with existing method and is had the following advantages:
1. have automatic triggering function: the energizing signal of present belt with pre-load device all is that the sensor from safety air bag extracts, just belt with pre-load device can't be installed if safety air bag is installed on the car, just can allow belt with pre-load device trigger independently by the present invention;
2. simple in structure: the present invention has just carried out the handle of Webbing retractor to improve and has just reached purpose;
3. reliability height: because the present invention just can ignite gas generator after occupant's impact forward reaches certain value, it is quick-fried can not produce mistake, the reliability height.
Description of drawings
Accompanying drawing 1 is the structural representation of an embodiment of a kind of belt with pre-load device with automatic triggering function provided by the invention.
The specific embodiment
With reference to accompanying drawing 1, accompanying drawing 1 is the structural representation of an embodiment of a kind of belt with pre-load device with automatic triggering function provided by the invention: in the upper end of belt with pre-load device taking-up device 1 is the ribbon 2 that links to each other with the occupant, be the bow handle 3 that is used for fixing on vehicle below, on the bow 4 of bow handle 3, opened a hole, pretension signal wire (SW) 6 pierces into from the hole of bow 4, pass in the hole from bow tail 5, pretension signal wire (SW) 6 is fixed on the bow 4 by captive nut 8, outside the hole of the following facebow tail 5 of pretension signal wire (SW) 6, and with bow tail 5 at a distance of certain distance socket trigger signal switch 9, trigger signal switch 9 links to each other with power cathode 11 with positive source 10 respectively.Belt with pre-load device taking-up device 1 is fixed on the vehicle by bow handle mounting hole 7.After the occupant has worn safety strap, by ribbon 2 pulling belt with pre-load device taking-up devices 1, thereby the bow 4 of bow handle 3 and the distance between the bow tail 5 are launched, but because the pulling force out of reach makes the distance of bow tail 5 driving signal trigger switches 9, so trigger signal switch 9 does not trigger.But when crashing; occupant's impulsive force will bend handle 3 and draw back; bow 4 and the increasing that spaces out of bending tail 5; surpass predefined value; trigger signal switch 9 below bow tail 5 has promoted, trigger signal switch 9 is communicated with, and positive source 10 is communicated with the gas generator of igniting safety strap with power cathode 11; thereby make the effect of belt with pre-load device performance pretension, protected occupant's safety.
Above described embodiment be that the present invention will be described, be not that the present invention is limited.Design, method and scope that the present invention is claimed all are documented in claims of the present invention.
Claims (7)
1. belt with pre-load device with automatic triggering function, comprise belt with pre-load device spool device, it is characterized in that: the bow handle of the fixed handle of described belt with pre-load device spool device being made tortuous bow shape, at bow and signal triggering line of bow tail series connection of bow handle, the belt with pre-load device taking-up device is fixing onboard by the bow tail; When the collision happens accident, when the pulling force that the bow handle is subjected to the occupant surpassed predefined power value, spacing out of tortuous bow surpassed the value of regulation, and the signal triggering line that is fixed on bow and bow tail is triggered, and energizing signal is ignited the pre-tightening apparatus of belt with pre-load device.
2. the belt with pre-load device with automatic triggering function according to claim 1, it is characterized in that: force rod of series connection between described bow and bow tail, the one end is fixed on bow, the other end passes the bow tail, pass the bottom of bow tail at force rod stressed pin is installed, socket energizing signal switch below the stressed pin of force rod after stressed pin moves down, is communicated with the pre-tightening apparatus that the energizing signal switch is ignited belt with pre-load device.
3. the belt with pre-load device with automatic triggering function according to claim 2, it is characterized in that: described force rod is the reducing bar, the diameter of described reducing bar between bow and bow tail is less than bending the tail bottom, connecting portion at two different-diameters is the excessive part of taper, it below the bow tail metal limit power ring that is socketed on the reducing bar, and the socket identical with the excessive part of taper of the interior shape of metal limit power ring thereon, socket energizing signal switch below metal limit power ring, when metal limit power hoop moves down, be communicated with the pre-tightening apparatus that the energizing signal switch is ignited belt with pre-load device.
4. the belt with pre-load device with automatic triggering function according to claim 1, it is characterized in that: bearer cable of series connection between described bow and bow tail, the one end is fixed on bow, and the other end passes the bow tail, passes a metal limit of the bottom socket power ring of bow tail at bearer cable; The top of the stressed ring of described metal is blocked the bottom with bearer cable and is toroidal, and socket energizing signal switch below the metal limit power ring of bearer cable when bearer cable moves down, is communicated with the pre-tightening apparatus that the energizing signal switch is ignited belt with pre-load device.
5. the belt with pre-load device with automatic triggering function according to claim 1 is characterized in that: stressed tube of series connection between described bow and bow tail, and the one end is fixed on bow, and the other end passes the bow tail; Pass the bottom socket metal limit power ring of bow tail at force rod; Described stressed tube is an adapter bonnet, diameter between bow and bow tail is less than bending the tail bottom, connecting portion at two different-diameters is the excessive part of taper, it below the bow tail metal limit power ring that is socketed on the reducing bar, and the socket identical with the excessive part of taper of the interior shape of metal limit power ring thereon, socket energizing signal switch below the stressed pin of force rod after stressed pin moves down, is communicated with the pre-tightening apparatus that the energizing signal switch is ignited belt with pre-load device.
6. the belt with pre-load device with automatic triggering function according to claim 5 is characterized in that: described stressed tube is a pancake between bow and bow tail, is circular in the bottom of the outside of bending tail, is smooth excessive part between pancake and the circle; And the socket identical with smooth excessive part of the interior shape of metal limit power ring thereon.
7. according to claim 2 or 3 or 4 or 5 or 6 described belt with pre-load devices with automatic triggering function, it is characterized in that: described trigger signal switch is to be connected between the bow and bow tail of bow handle, walking abreast with force rod or reducing bar or bearer cable or stressed tube or flat tube, is not that socket is superincumbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102007930A CN102107645A (en) | 2009-12-25 | 2009-12-25 | Pre-stressed seat belt with automatic trigger function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102007930A CN102107645A (en) | 2009-12-25 | 2009-12-25 | Pre-stressed seat belt with automatic trigger function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102107645A true CN102107645A (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102007930A Pending CN102107645A (en) | 2009-12-25 | 2009-12-25 | Pre-stressed seat belt with automatic trigger function |
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|---|---|
| CN (1) | CN102107645A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217190A (en) * | 2019-06-20 | 2019-09-10 | 浙江吉利控股集团有限公司 | A kind of safety belt force limit system of automatic adaptation passenger type |
-
2009
- 2009-12-25 CN CN2009102007930A patent/CN102107645A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217190A (en) * | 2019-06-20 | 2019-09-10 | 浙江吉利控股集团有限公司 | A kind of safety belt force limit system of automatic adaptation passenger type |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110629 |