CN115027407A - Safety belt force limiting device - Google Patents
Safety belt force limiting device Download PDFInfo
- Publication number
- CN115027407A CN115027407A CN202210533154.1A CN202210533154A CN115027407A CN 115027407 A CN115027407 A CN 115027407A CN 202210533154 A CN202210533154 A CN 202210533154A CN 115027407 A CN115027407 A CN 115027407A
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- sleeve assembly
- shaped bolt
- pressure relief
- assembly
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000009172 bursting Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 208000027790 Rib fracture Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
Abstract
The invention relates to a safety belt force limiting device which comprises a mandrel assembly, a sleeve assembly and a special-shaped bolt, wherein the mandrel assembly, the sleeve assembly and the special-shaped bolt are coaxially nested from outside to inside; one end of the sleeve assembly, which deviates from the special-shaped bolt, is in abutting fit with the mandrel assembly, a piston is arranged in the sleeve assembly, the piston is in abutting fit with the end part of the special-shaped bolt and can slide along the inner wall of the sleeve assembly, and one end of the sleeve assembly, which deviates from the special-shaped bolt, is sealed and filled with hydraulic oil. The safety belt force limiting device can accurately output a force limiting value which is adjusted in a stepless mode, can greatly widen the span of the force limiting value, and can meet the safety performance requirements of all types of vehicles.
Description
Technical Field
The invention relates to the technical field of vehicle safety, in particular to a safety belt force limiting device.
Background
The seat belt itself has many functions as the most important component for safety protection of occupants in the vehicle. The force limiting function is an important function, and can effectively reduce the restraint injury of a safety belt webbing to a human body in the vehicle collision process, so that the physical injury of a passenger using the safety belt is reduced (the safety belt without the force limiting function can cause the rib fracture of the passenger).
The force limiting function of the safety belt in the industry at present is realized by a force limiting rod in a mandrel, and the safety belt has the advantages that: mature design, better performance and lower cost, but the defects are also prominent: the force limiting values of the force limiting rods of different grades are large in difference jumping (such as force limiting values F1, F2, F3 and F4 shown in FIG. 1), the force limiting values are unstable, the material requirements are high, and the like, and the force limiting values are jumping, so that stepless adjustment cannot be realized.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a safety belt force limiting device, which solves the defects of the force limiting rod, can accurately output a force limiting value which is subjected to stepless adjustment, can greatly widen the span of the force limiting value, and can cover the safety performance requirements of all types of vehicles.
The technical scheme for solving the technical problems is as follows:
a safety belt force limiting device comprises a mandrel assembly, a sleeve assembly and a special-shaped bolt which are coaxially nested from outside to inside, wherein a connecting cover is fixedly arranged at one end of the mandrel assembly, a threaded hole is formed in the connecting cover, one end of the special-shaped bolt penetrates through the threaded hole and is in meshed transmission with the threaded hole, and the other end of the special-shaped bolt extends into the sleeve assembly; one end of the sleeve assembly, which deviates from the special-shaped bolt, is in abutting fit with the mandrel assembly, a piston is arranged in the sleeve assembly, the piston is in abutting fit with the end part of the special-shaped bolt and can slide along the inner wall of the sleeve assembly, and one end of the sleeve assembly, which deviates from the special-shaped bolt, is sealed and filled with hydraulic oil.
On the basis of the technical scheme, the invention can be further improved as follows.
Preferably, one end of the sleeve assembly, which is far away from the special-shaped bolt, is provided with a pressure relief hole, and the sleeve assembly is provided with a sealing pressure relief unit aligned with the pressure relief hole; when the pressure value in the sleeve assembly exceeds a threshold value, the sealing pressure relief unit releases the pressure relief hole.
Preferably, be equipped with the drainage hole of aiming at the pressure release hole on the dabber assembly, the drainage hole is the through-hole, the aperture in drainage hole is less than the aperture in pressure release hole, works as when sealed pressure release unit releases the pressure release hole, drainage hole and pressure release hole intercommunication.
Preferably, the sealing and pressure relief unit is a rubber sealing piece or a bursting sealing piece.
Preferably, a circumferential limiting groove is formed in the mandrel assembly, a limiting protrusion is arranged on the periphery of the sleeve assembly, and the limiting protrusion is matched with the limiting groove.
Preferably, the limiting protrusion is a ratchet wheel, and the ratchet wheel is clamped with the limiting groove.
Preferably, a stop table is arranged in the sleeve assembly, and when the piston slides to the limit position, the stop table is in butt fit with the piston.
The beneficial effects of the invention are: according to the safety belt force limiting device, the safety belt webbing is wound on the periphery of the mandrel assembly, when a safety belt is normally used and the webbing is slowly pulled, the mandrel assembly and the special-shaped bolt rotate synchronously in the circumferential direction along with the webbing, and the webbing can be normally pulled out for use; when the woven belt is pulled quickly due to vehicle collision or other reasons, the mandrel assembly rotates circumferentially along with the woven belt quickly, the special-shaped bolt rotates relative to the mandrel assembly due to inertia of the special-shaped bolt, the special-shaped bolt and the threaded engagement transmission function of the connecting cover at the moment, the special-shaped bolt moves linearly along the sleeve assembly in the mandrel assembly, the special-shaped bolt pushes the piston to slide in the sleeve assembly to compress hydraulic oil in the sleeve assembly, the oil pressure is increased suddenly, reverse resistance is transmitted to the piston and the special-shaped bolt, and the mandrel assembly is prevented from rotating continuously due to the engagement transmission function of the special-shaped bolt and the connecting cover, so that force limitation is provided for the woven belt of the safety belt, the force limitation function of the safety belt is realized, and the purpose of protecting passengers better is achieved. Different sleeve assemblies and special-shaped bolts are arranged on the safety belt force limiting devices used for different vehicles, so that different force limiting can be realized, the span of force limiting values is greatly widened, and the safety performance requirements of all types of vehicles can be met.
Drawings
FIG. 1 is a force-limiting curve of a webbing shoulder strap of a prior art;
FIG. 2 is a force limit curve diagram of the shoulder belt of the webbing in the technical scheme of the invention;
fig. 3 is a schematic perspective view of the safety belt force limiting device of the present invention;
fig. 4 is an exploded view of the safety belt force limiting device of the present invention;
fig. 5 is a sectional view showing the internal structure of the safety belt force limiter of the present invention in a natural state;
fig. 6 is a sectional view showing an internal structure in a general operation state of the seatbelt force limiting device of the present invention;
fig. 7 is a sectional view of the internal structure of the seatbelt force limiting apparatus of the present invention in a state where the pressure threshold value is exceeded.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the mandrel assembly comprises a mandrel assembly body 101, a drainage hole 102, a limiting groove 2, a sleeve assembly body 201, a pressure relief hole 202, a limiting protrusion 203, a stop table 3, a special-shaped bolt 4, a connecting cover 401, a threaded hole 5, a piston 6 and a sealing pressure relief unit.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 3 to 7, the present embodiment provides a safety belt force limiting device, which includes a mandrel assembly 1, a sleeve assembly 2, and a special-shaped bolt 3, which are coaxially nested from outside to inside, and the outer periphery of the mandrel assembly 1 is used for winding a safety belt webbing. One end of the mandrel assembly 1 is fixedly provided with a connecting cover 4, a threaded hole 401 is formed in the connecting cover 4, one end of the special-shaped bolt 3 penetrates through the threaded hole 401 and is in meshed transmission with the threaded hole 401, and the other end of the special-shaped bolt 3 extends into the sleeve assembly 2; the special-shaped bolt assembly is characterized in that one end of the sleeve assembly 2, which deviates from the special-shaped bolt 3, is in abutting fit with the mandrel assembly 1, a piston 5 is arranged in the sleeve assembly 2, the piston 5 is in abutting fit with the end part of the special-shaped bolt 3 and can slide along the inner wall of the sleeve assembly 2, and one end of the sleeve assembly 2, which deviates from the special-shaped bolt 3, is sealed and filled with hydraulic oil.
The end of the sleeve assembly 2 is pressed tightly inside the mandrel assembly 1 and positioned due to the action of the hydraulic pressure in the sleeve assembly 2. The threads on the periphery of the special-shaped bolt 3 are in interference fit with the threaded hole 401 of the connecting cover 4, so that a certain buffer space is reserved during meshing transmission. The periphery of the mandrel assembly 1 is wound with a safety belt woven belt, when the safety belt is normally used and the woven belt is slowly pulled, the mandrel assembly 1 and the special-shaped bolt 3 synchronously rotate circumferentially along with the woven belt, and at the moment, the woven belt can be normally pulled out for use; when the woven belt is pulled rapidly due to vehicle collision or other reasons, the mandrel assembly 1 rotates circumferentially rapidly along with the woven belt, at the moment, the mandrel assembly 1 rotates relatively due to inertia of the special-shaped bolt 3, at the moment, due to the thread engagement transmission effect of the special-shaped bolt 3 and the connecting cover 4, the special-shaped bolt 3 does linear motion along the sleeve assembly 2 in the mandrel assembly 1, the end part of the special-shaped bolt 3 pushes the piston 5 to slide in the sleeve assembly 2, and hydraulic oil in the sleeve assembly 2 is compressed. The oil pressure increases suddenly, transmits reverse resistance to the piston 5 and the special-shaped bolt 3, prevents the special-shaped bolt 3 from continuing to advance linearly, prevents the mandrel assembly 1 from continuing to rotate due to the meshing transmission effect of the special-shaped bolt 3 and the connecting cover 4, thereby providing force limitation for the safety belt webbing, realizing the function of limiting the force of the safety belt, and achieving the purpose of better protecting passengers. As shown in fig. 2, a force limit curve diagram of the shoulder belt of the seat belt webbing in the technical solution of the present embodiment is shown, and compared with a solution in the prior art that a force limit rod is adopted, the solution has the advantages that a force limit value area is enlarged, and stepless adjustment can be realized. Different sleeve assemblies 2 and special-shaped bolts 3 are arranged on the safety belt force limiting devices used for different vehicles, so that different force limiting can be realized, the span of force limiting values is greatly widened, and the safety performance requirements of all types of vehicles can be met.
On the basis of the above technical solution, the present embodiment can be further improved as follows.
As shown in the sectional views of fig. 5 to 7, a pressure relief hole 201 is formed in one end of the sleeve assembly 2 away from the special-shaped bolt 3, a sealing pressure relief unit 6 aligned with the pressure relief hole 201 is arranged on the sleeve assembly 2, as shown in fig. 5, a sectional view of an internal structure of the safety belt force limiting device in a natural state is shown, and at this time, the piston 5 is located at a right limit position in the sleeve assembly 2; as shown in fig. 6, which is a cross-sectional view of the internal structure of the seat belt force limiter in a general operating state, when the piston 5 starts to slide under the pushing of the special-shaped bolt 3, the oil pressure gradually increases, and the oil pressure provides resistance for the piston 5 and the special-shaped bolt 3 to prevent the mandrel assembly 1 from continuing to rotate, thereby providing a force limit for the seat belt webbing and realizing the function of limiting the seat belt force; as shown in fig. 7, which is a cross-sectional view of an internal structure of the safety belt force limiting device in a state exceeding a pressure threshold, when the piston 5 slides rapidly and causes a pressure value in the bushing assembly 2 to exceed a pressure threshold of the sealing pressure relief unit 6, the sealing pressure relief unit 6 releases the pressure relief hole 201, hydraulic oil is released through the pressure relief hole 201 to relieve the pressure of the bushing assembly 2, and the bushing assembly 2 is prevented from bursting due to an excessive pressure. Through the aperture size who sets up pressure release hole 201 and the pressure threshold value who sets up sealed pressure release unit 6 (for example change the material of sealed pressure release unit 6), can realize the infinitely variable control of limit value, strengthened safety belt system's suitability and security.
As shown in fig. 5-7, be equipped with the drainage hole 101 of aiming at pressure release hole 201 on the dabber assembly 1, drainage hole 101 is the through-hole, the aperture of drainage hole 101 is less than the aperture of pressure release hole 201, with sealed pressure release unit 6 crimping between drainage hole 101 and pressure release hole 201, when hydraulic pressure exceed the pressure threshold value when sealed pressure release unit 6 releases pressure release hole 201, drainage hole 101 and pressure release hole 201 intercommunication are derived dabber assembly 1 with the spun hydraulic oil in the sleeve pipe assembly 2, clear up the safety belt system when being convenient for maintain. The aperture of drainage hole 101 is less than the aperture of pressure release hole 201, and the effect of tang can be played at the border of drainage hole 101, does benefit to and carries on spacingly for sealed pressure release unit 6, prevents that sealed pressure release unit 6 from following drainage hole 101 roll-off under the pressure promotion of hydraulic oil when not reaching pressure threshold value.
In this embodiment, the sealing and pressure relief unit 6 may preferably adopt a rubber sealing piece or a bursting sealing piece. When the hydraulic pressure in the sleeve assembly 2 does not exceed the pressure threshold, the rubber sealing sheet or the blasting sealing sheet plays a role in sealing; when the hydraulic pressure in the sleeve assembly 2 is too large, the rubber sealing sheet or the explosion sealing sheet is broken by the hydraulic oil, so that a pressure relief channel is released. Through the setting to pressure release hole 201 aperture, drainage hole 101 aperture and sealed pressure release unit 6 for the pressure threshold value is higher than the interior hydraulic pressure value of sleeve pipe assembly 2 under the general service behavior far away, therefore sealed pressure release unit 6 carries out the condition of pressure release and generally the vehicle experiences unusual behavior such as violent collision. Therefore, the sealing and pressure relief unit 6 is a disposable product, and needs to be repaired and replaced after pressure relief.
As shown in fig. 5 to 7, a circumferential limiting groove 102 is formed in the mandrel assembly 1, a limiting protrusion 202 is formed on the periphery of the sleeve assembly 2, and the limiting protrusion 202 is adapted to the limiting groove 102. The limiting groove 102 in the mandrel assembly 1 is matched with the limiting protrusion 202 of the sleeve assembly 2 in an embedded manner, so that the mandrel assembly 1 and the sleeve assembly 2 rotate synchronously, and the mandrel assembly 1 and the sleeve assembly 2 are prevented from rotating relatively to influence the force limiting function of the safety belt limiting device.
As shown in the exploded view of fig. 4, the limiting protrusion 202 is a ratchet wheel, which is engaged with the limiting groove 102. The periphery of the ratchet wheel is provided with a plurality of tooth-shaped protrusions which are clamped into the limiting grooves 102, so that the synchronous rotation of the mandrel assembly 1 and the sleeve assembly 2 is realized.
As shown in fig. 5 to 7, a stopper 203 is provided in the sleeve assembly 2, and when the piston 5 slides to the limit position, the stopper 203 is in contact engagement with the piston 5. The stop table 203 is used for limiting the sliding limit position of the piston 5, on one hand, the piston 5 is prevented from sliding out of the sleeve assembly 2, and the structural stability of the device is improved, on the other hand, the hydraulic value in the sleeve assembly 2 can be set through the position of the stop table 203, and the setting of the force limiting value range of the safety belt system is facilitated.
The working principle is as follows:
according to the safety belt force limiting device, the periphery of the mandrel assembly 1 winds the safety belt woven belt, when the safety belt is normally used and the woven belt is slowly pulled, the mandrel assembly 1 and the special-shaped bolt 3 rotate synchronously in the circumferential direction along with the woven belt, and the woven belt can be normally pulled out for use; when the woven belt is pulled rapidly due to vehicle collision or other reasons, the mandrel assembly 1 rotates circumferentially rapidly along with the woven belt, the special-shaped bolt 3 rotates relative to the mandrel assembly 1 due to inertia of the special-shaped bolt 3, at the moment, due to the thread engagement transmission effect of the special-shaped bolt 3 and the connecting cover 4, the special-shaped bolt 3 moves linearly along the sleeve assembly 2 in the mandrel assembly 1, the special-shaped bolt 3 pushes the piston 5 to slide in the sleeve assembly 2, hydraulic oil in the sleeve assembly 2 is compressed, the oil pressure is increased suddenly, reverse resistance is transmitted to the piston 5 and the special-shaped bolt 3, and due to the engagement transmission effect of the special-shaped bolt 3 and the connecting cover 4, the mandrel assembly 1 is prevented from rotating continuously, so that force limitation is provided for the woven belt of the safety belt, the force limitation function of the safety belt is realized, and the purpose of better protecting passengers is achieved. If the safety belt webbing is pulled rapidly due to severe collision of the vehicle, and then when the hydraulic pressure in the sleeve assembly 2 is larger than the pressure threshold value, the hydraulic oil breaks the sealing pressure relief unit 6 to relieve the pressure, so that the stepless regulation of the limit value is realized, and the safety of the safety belt system is further enhanced. Different sleeve assemblies 2, special-shaped bolts 3, the diameters of pressure relief holes 201 and materials of sealing pressure relief units 6 are arranged on safety belt force limiting devices used for different vehicles, so that different force limiting can be realized, the span of force limiting values is greatly widened, and the safety performance requirements of all types of vehicles can be met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The safety belt force limiting device is characterized by comprising a mandrel assembly (1), a sleeve assembly (2) and a special-shaped bolt (3) which are coaxially nested from outside to inside, wherein a connecting cover (4) is fixedly arranged at one end of the mandrel assembly (1), a threaded hole (401) is formed in the connecting cover (4), one end of the special-shaped bolt (3) penetrates through the threaded hole (401) and is in meshing transmission with the threaded hole (401), and the other end of the special-shaped bolt (3) extends into the sleeve assembly (2); the special-shaped bolt structure is characterized in that one end of the sleeve assembly (2) deviating from the special-shaped bolt (3) is in abutting fit with the mandrel assembly (1), a piston (5) is arranged in the sleeve assembly (2), the piston (5) is in abutting fit with the end portion of the special-shaped bolt (3) and can slide along the inner wall of the sleeve assembly (2), and one end of the sleeve assembly (2) deviating from the special-shaped bolt (3) is arranged in a sealing mode and filled with hydraulic oil.
2. The safety belt force limiting device according to claim 1, characterized in that a pressure relief hole (201) is formed in one end of the sleeve assembly (2) facing away from the profiled bolt (3), and a sealing pressure relief unit (6) aligned with the pressure relief hole (201) is formed in the sleeve assembly (2); when the pressure value in the sleeve assembly (2) exceeds a threshold value, the sealed pressure relief unit (6) releases the pressure relief hole (201).
3. The safety belt force limiting device according to claim 2, wherein the mandrel assembly (1) is provided with a drainage hole (101) aligned with the pressure relief hole (201), the drainage hole (101) is a through hole, the aperture of the drainage hole (101) is smaller than that of the pressure relief hole (201), and when the sealed pressure relief unit (6) releases the pressure relief hole (201), the drainage hole (101) is communicated with the pressure relief hole (201).
4. The safety belt force limiting device according to claim 3, characterized in that the sealing pressure relief unit (6) is a rubber sealing sheet or a burst sealing sheet.
5. The safety belt force limiting device according to any one of claims 1 to 4, characterized in that a limiting groove (102) for limiting the circumferential direction is formed in the mandrel assembly (1), a limiting protrusion (202) is formed on the outer periphery of the sleeve assembly (2), and the limiting protrusion (202) is matched with the limiting groove (102).
6. The belt force limiting device according to claim 5, characterized in that the limiting projection (202) is a ratchet which engages with the limiting groove (102).
7. The belt force limiting device according to claim 1, characterized in that a stop (203) is provided in the sleeve assembly (2), the stop (203) being in abutting engagement with the piston (5) when the piston (5) is slid to the extreme position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210533154.1A CN115027407B (en) | 2022-05-13 | 2022-05-13 | Safety belt force limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210533154.1A CN115027407B (en) | 2022-05-13 | 2022-05-13 | Safety belt force limiting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115027407A true CN115027407A (en) | 2022-09-09 |
| CN115027407B CN115027407B (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210533154.1A Active CN115027407B (en) | 2022-05-13 | 2022-05-13 | Safety belt force limiting device |
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| Country | Link |
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| CN (1) | CN115027407B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6237959B1 (en) * | 1999-12-08 | 2001-05-29 | Autoliv Asp, Inc. | Hydraulic velocity damper |
| JP2001260812A (en) * | 2000-03-21 | 2001-09-26 | Tokai Rika Co Ltd | Webbing take-up device and vehicle |
| DE10052686A1 (en) * | 2000-10-24 | 2002-05-02 | Takata Europa Vehicle Safety T | Safety belt device for motor vehicles has retraction device coupled to safety belt before or by belt extraction movement so as to be activated by extraction movement |
| DE10052111A1 (en) * | 2000-10-20 | 2002-05-02 | Volkswagen Ag | Belt tensioner has pyrotechnic drive with number of individual drive charges that can be activated individually or in multiples in event of vehicle collision, resettable actuating element |
| US20080099594A1 (en) * | 2006-11-01 | 2008-05-01 | Takata Corporation | Seat belt retractor and seat belt apparatus comprising the same |
| CN102424009A (en) * | 2011-11-16 | 2012-04-25 | 广州汽车集团股份有限公司 | Anti-whiplash safety belt |
| JP2012102717A (en) * | 2010-11-09 | 2012-05-31 | Ryoji Saeki | Flat spiral spring mechanism |
| CN103832390A (en) * | 2014-02-27 | 2014-06-04 | 上海和励信息科技有限公司 | Base for pre-tightening safety device, pre-tightening safety device and conveying equipment |
| US20140303851A1 (en) * | 2013-03-15 | 2014-10-09 | Fuji Jukogyo Kabushiki Kaisha | Four-point seat belt device |
| CN108791177A (en) * | 2017-05-03 | 2018-11-13 | 福特全球技术公司 | Load limitation seat belt retractor |
| CN208559276U (en) * | 2018-08-02 | 2019-03-01 | 厦门理工学院 | A kind of force-limiting device and the safety belt equipped with force-limiting device |
-
2022
- 2022-05-13 CN CN202210533154.1A patent/CN115027407B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6237959B1 (en) * | 1999-12-08 | 2001-05-29 | Autoliv Asp, Inc. | Hydraulic velocity damper |
| JP2001260812A (en) * | 2000-03-21 | 2001-09-26 | Tokai Rika Co Ltd | Webbing take-up device and vehicle |
| DE10052111A1 (en) * | 2000-10-20 | 2002-05-02 | Volkswagen Ag | Belt tensioner has pyrotechnic drive with number of individual drive charges that can be activated individually or in multiples in event of vehicle collision, resettable actuating element |
| DE10052686A1 (en) * | 2000-10-24 | 2002-05-02 | Takata Europa Vehicle Safety T | Safety belt device for motor vehicles has retraction device coupled to safety belt before or by belt extraction movement so as to be activated by extraction movement |
| US20080099594A1 (en) * | 2006-11-01 | 2008-05-01 | Takata Corporation | Seat belt retractor and seat belt apparatus comprising the same |
| JP2012102717A (en) * | 2010-11-09 | 2012-05-31 | Ryoji Saeki | Flat spiral spring mechanism |
| CN102424009A (en) * | 2011-11-16 | 2012-04-25 | 广州汽车集团股份有限公司 | Anti-whiplash safety belt |
| US20140303851A1 (en) * | 2013-03-15 | 2014-10-09 | Fuji Jukogyo Kabushiki Kaisha | Four-point seat belt device |
| CN103832390A (en) * | 2014-02-27 | 2014-06-04 | 上海和励信息科技有限公司 | Base for pre-tightening safety device, pre-tightening safety device and conveying equipment |
| CN108791177A (en) * | 2017-05-03 | 2018-11-13 | 福特全球技术公司 | Load limitation seat belt retractor |
| CN208559276U (en) * | 2018-08-02 | 2019-03-01 | 厦门理工学院 | A kind of force-limiting device and the safety belt equipped with force-limiting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115027407B (en) | 2024-01-16 |
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