CN113602230A - Safety belt structure and safety belt lock catch with cushion waist load function - Google Patents
Safety belt structure and safety belt lock catch with cushion waist load function Download PDFInfo
- Publication number
- CN113602230A CN113602230A CN202110997667.3A CN202110997667A CN113602230A CN 113602230 A CN113602230 A CN 113602230A CN 202110997667 A CN202110997667 A CN 202110997667A CN 113602230 A CN113602230 A CN 113602230A
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- component
- safety belt
- buffering
- guide
- function
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- 230000003139 buffering effect Effects 0.000 claims abstract description 29
- 230000035939 shock Effects 0.000 claims abstract description 25
- 238000013016 damping Methods 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001835 viscera Anatomy 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
- B60R22/28—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
- A44B11/25—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts
- A44B11/2503—Safety buckles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
A safety belt structure with a function of buffering waist load and a safety belt lock catch are arranged on a seat of a vehicle and connected with the safety belt lock catch, and the safety belt lock catch is connected with a safety belt and comprises a guide assembly; a shock absorbing end; the buffer component is positioned between the damping end head and the guide component; one end of the connecting component is connected with the damping end, the other end of the connecting component penetrates through the guide assembly and then is connected with the safety belt lock catch, and the buffering component is sleeved on the connecting component; the buffer component is arranged, so that the purposes of absorbing vibration and impact caused by collision and relieving the impact of the collision on the waist of a user are achieved; the purpose of facilitating the deformation of the buffering component is achieved by arranging the guide oblique angle on the damping end head; through setting up the direction subassembly, realize installing shock attenuation end, adapting unit and buffering part on the seat.
Description
Technical Field
The invention relates to the field of safety belts, in particular to a safety belt structure with a waist load buffering function and a safety belt lock catch.
Background
The safety belt is a device which is arranged on vehicles such as automobiles and airplanes and the like and can ensure the safety of drivers and passengers, when the vehicles collide, the drivers and the passengers are fixed on seats by the safety belt, the waist of the existing safety belt is not protected, the waist stress of a user reaches 7-9KN when the safety belt works, and the load can cause great damage to the waist and the hip of the passengers and even the internal organs of the abdomen.
Disclosure of Invention
The invention aims at the problems and provides a safety belt structure with a function of buffering waist load.
The technical scheme adopted by the invention is as follows: a seat belt structure having a function of buffering a waist load, which is installed in a seat of a vehicle, and is connected to a seat belt buckle to which a seat belt is connected, the seat belt buckle having an upper opening and a lower opening, the seat belt entering through the upper opening into an inside of the seat belt buckle and being connected to the seat belt buckle, comprising:
a guide assembly;
a shock absorbing end;
a damping member located between the shock absorbing head and the guide assembly;
one end of the connecting component is connected with the damping end, the other end of the connecting component penetrates through the guide assembly and then is connected with the safety belt lock catch, the connecting component enters the safety belt lock catch through the lower opening, and the buffering component is sleeved on the connecting component.
During the actual use, install shock attenuation end, adapting unit and buffer unit on the seat through the guide assembly, when bumping, safety belt pulling safety belt hasp, safety belt hasp pulling adapting unit, the shock attenuation end that links to each other with adapting unit is close to the guide assembly, and at the in-process that is close to, the buffer unit of shock attenuation port extrusion cover on adapting unit, buffer unit warp, and shock and the impact that the absorption collision brought simultaneously slows down the impact of striking to user's waist.
Preferably, the shock-absorbing end head is provided with a guide bevel, the angle between the guide bevel and the axis of the shock-absorbing end head is 0-80 degrees, and the cross section of the guide bevel is a polygon or a circle.
The size of direction oblique angle and the buffering part need produce the force of initial deformation inversely proportional, during the in-service use, according to different vehicles, sets up the direction oblique angle of suitable angle.
Preferably, the guide assembly is used for guiding the moving direction of the connecting component, and includes:
the shell is provided with a stopping component, the stopping component corresponds to the buffer component, a channel for the connecting component to pass through is arranged on the stopping component, and the shell is fixed on the seat;
the guide wheel is provided with two guide grooves in parallel and is connected to the inside of the shell through a bolt;
the connecting component is fixed inside the fixing clamp, and the fixing clamp is used for limiting the torsion angle of the connecting component.
When in actual use, the connecting part is firstly placed into the guide groove, bent along the direction of the guide groove and then enters the safety belt lock catch; the connecting part penetrates through the fixing clamp, and the fixing clamp clamps the connecting part to limit the torsion angle of the connecting part and the safety belt lock catch; the shell is provided with a stop component, the damping end extrudes the buffer component onto the stop component, and meanwhile, a channel on the stop component has the functions of restraining and guiding the connecting component, so that the connecting component can conveniently penetrate through the guide assembly.
Preferably, the buffering component is a metal pipe, one end of the metal pipe abuts against the damping end, and the other end of the metal pipe is connected with the stopping component.
In practical use, the shock absorption port extrudes the metal tube arranged on the connecting part, and the metal tube absorbs impact generated by impact, so that the waist of a user is protected.
Preferably, the buffering component is a spring, one end of the spring is abutted against the damping end head, and the other end of the spring is connected with the stopping component.
The buffer component is repeatedly used by adopting the spring, so that the aim of saving cost is fulfilled; the spring has the characteristic of easy deformation, and during the in-service use, when the vehicle was braked, the spring also can produce deformation, realizes further protecting user's waist.
Preferably, the connecting part is a steel wire rope with one section folded in half, the folded end is a first end, the other end is a second end, a limiting column is arranged on the safety belt buckle, the first end is sleeved on the limiting column, and the second end of the connecting part is fixedly connected with the damping end.
The steel wire rope has the advantages that the self-weight is light, the steel wire rope can bear various loads and variable loads, meanwhile, the tensile strength, the fatigue resistance and the impact toughness are high, and the purpose of quick pulling is realized by adopting the steel wire rope; the steel wire rope is connected to the limiting column of the safety belt lock catch at the folded position, so that the safety belt lock catch is convenient to process and simple to install.
Preferably, the housing has a mounting hole, and the seat has a threaded hole corresponding to the bolt, and the bolt passes through the mounting hole and the guide wheel into the threaded hole.
During the in-service use, the mounting hole and the leading wheel on the shell are passed in proper order to the bolt, then connect on the screw hole of seat, and the installation is simple, connects firmly.
Preferably, the fixing clamp further comprises a fixing pin, a through hole is formed in the shell, and the fixing pin penetrates through the through hole to connect the fixing clamp to the shell.
During the actual use, the fixed pin passes the through-hole and connects on the shell, and the fixed pin presss from both sides the fixation clamp tightly, realizes locking wire rope in the inside of fixation clamp.
Preferably, the clamping device further comprises a clamp, the clamp is connected to the shell, the clamp is matched with the buffering component and the stopping component, the stopping component is provided with a clamping step corresponding to the shell, and the connecting component is matched with the guide groove.
When the buffer component is actually used, the clamp hoop connects the buffer component with the stop component, so that the stability of the buffer component is guaranteed; through set up the joint step on the locking part, realize installing the locking part on the shell fast, through setting up guide way and adapting unit looks adaptation, realize adapting unit and be difficult for breaking away from the leading wheel.
The application also discloses a safety belt lock catch comprising the safety belt structure with the function of buffering waist load.
The invention has the beneficial effects that: the buffer component is arranged, so that the purposes of absorbing vibration and impact caused by collision and relieving the impact of the collision on the waist of a user are achieved; the purpose of facilitating the deformation of the buffering component is achieved by arranging the guide oblique angle on the damping end head; the shock absorption end, the connecting component and the buffering component are arranged on the seat through the arrangement of the guide component; through set up the joint step on the locking part, realize installing locking part on the shell fast.
Description of the drawings:
FIG. 1 is a schematic view of a seat belt structure having a lumbar load cushioning function;
FIG. 2 is a schematic view of a split seat belt structure having a lumbar load cushioning function;
FIG. 3 is a schematic view of the connecting member, shock absorbing tip, stop member and retaining clip;
FIG. 4 is a schematic view of a shock absorbing tip;
FIG. 5 is a schematic view of a guide wheel;
figure 6 is a schematic view of another cushioning member with a shock absorbing tip and a stop member.
The figures are numbered:
1. a safety belt lock catch; 2. a shock absorbing end; 3. a buffer member; 4. a connecting member; 5. guiding oblique angles; 6. a housing; 7. a stopper member; 8. a guide wheel; 9. mounting holes; 10. a bolt; 11. a fixing clip; 12. a through hole; 13. a fixing pin; 14. clamping a hoop; 15. clamping the steps; 16. and a lower opening.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, 2 and 3, a seat belt structure with a function of absorbing a lumbar load, which is installed on a seat of a vehicle, is connected to a seat belt buckle 1, a seat belt is connected to the seat belt buckle 1, the seat belt buckle 1 has an upper opening and a lower opening 16, the seat belt enters the inside of the seat belt buckle 1 through the upper opening and is connected to the seat belt buckle 1, and the seat belt structure comprises:
a guide assembly;
a damping end 2;
the buffer component 3 is positioned between the damping end head 2 and the guide component;
one end of the connecting part 4 is connected with the damping end head 2, the other end of the connecting part passes through the guide assembly and then is connected with the safety belt lock catch 1, the connecting part 4 enters the safety belt lock catch 1 through the lower opening 16, and the buffering part 3 is sleeved on the connecting part 4.
During the in-service use, install shock attenuation end 2, adapting unit 4 and buffer unit 3 on the seat through the guide assembly, when bumping, safety belt pulling safety belt hasp 1, safety belt hasp 1 pulling adapting unit 4, shock attenuation end 2 that links to each other with adapting unit 4 is close to the guide assembly, at the in-process that is close to, the buffer unit 3 on adapting unit 4 is established to shock attenuation port extrusion cover, buffer unit 3 warp, the vibrations and the impact of absorbing the collision simultaneously and bringing slow down the impact of striking to user's waist.
As shown in fig. 4, the shock-absorbing tip 2 is provided with a guide bevel 5, the angle between the guide bevel 5 and the axis of the shock-absorbing tip 2 is 0 to 80 degrees, and the cross section of the guide bevel 5 is a polygon or a circle.
The size of the guide bevel 5 is inversely proportional to the force of the initial deformation of the buffer component 3, and the guide bevel 5 with a proper angle is arranged according to different vehicles in actual use.
As shown in fig. 2 and 5, the guide assembly for guiding the moving direction of the connecting member 4 includes:
the shell 6 is provided with a stop component 7, the stop component 7 corresponds to the buffer component 3, a channel for the connecting component 4 to pass through is arranged on the stop component 7, and the shell 6 is fixed on the seat;
the guide wheel 8 is provided with two guide grooves in parallel, and the guide wheel 8 is connected to the inside of the shell 6 through a bolt 10;
and a fixing clip 11, wherein the connecting part 4 is fixed in the fixing clip 11, and the fixing clip 11 is used for limiting the torsion angle of the connecting part 4.
When in actual use, the connecting part 4 is firstly placed into the guide groove, is bent along the direction of the guide groove and then enters the safety belt lock catch 1; the connecting part 4 penetrates through the fixing clamp 11, the fixing clamp 11 clamps the connecting part 4 to limit the torsion angle of the connecting part 4 and the safety belt lock catch 1, the stopping part 4 is arranged on the shell 6, the buffer part 3 is extruded onto the stopping part 4 by the damping end head 2, meanwhile, a channel on the stopping part 4 has the functions of restraining and guiding the connecting part 4, and the connecting part 4 can conveniently penetrate through the guiding assembly.
The buffer component 3 adopts a metal pipe, one end of the metal pipe is abutted against the damping end head 2, and the other end of the metal pipe is connected with the stop component 7.
In practical use, the shock absorbing port extrudes the metal tube arranged on the connecting part 4, and the metal tube absorbs impact generated by impact, so that the waist of a user is protected.
The buffer component 3 adopts a spring, one end of the spring is propped against the damping end head 2, and the other end of the spring is connected with the stop component 7.
The buffer component 3 can be repeatedly used by adopting the spring, so that the aim of saving cost is fulfilled; the spring has the characteristic of easy deformation, and during the in-service use, when the vehicle was braked, the spring also can produce deformation, realizes further protecting user's waist.
The connecting part 4 is a steel wire rope with one section folded in half, the folded end is a first end, the other end is a second end, a limiting column is arranged on the safety belt lock catch 1, the first end is sleeved on the limiting column, and the second end of the connecting part 4 is fixedly connected with the damping end head 2.
The steel wire rope has the advantages that the self-weight is light, the steel wire rope can bear various loads and variable loads, meanwhile, the tensile strength, the fatigue resistance and the impact toughness are high, and the purpose of quick pulling is realized by adopting the steel wire rope; the steel wire rope folding position is connected to the limiting column of the safety belt lock catch 1, the steel wire rope folding position is convenient to process and simple to install, in the embodiment, the limiting column is provided with the rivet, the connecting component 4 enters the safety belt lock catch 1 from the lower opening 16, and the bending position of the connecting component 4 is sleeved on the rivet.
As shown in fig. 2, the housing 6 has a mounting hole 9, and the seat has a threaded hole corresponding to the bolt 10, and the bolt 10 passes through the mounting hole 9 and the guide wheel 8 into the threaded hole.
During practical use, the bolt 10 sequentially penetrates through the mounting hole 9 and the guide wheel 8 on the shell 6 and then is connected to a threaded hole of the seat, so that the installation is simple, and the connection is stable.
The fixing device further comprises a fixing pin 13, a through hole 12 is formed in the shell 6, and the fixing pin 11 penetrates through the through hole 12 to connect the fixing clamp 11 to the shell 6.
In actual use, the fixing pin 13 passes through the through hole to be connected to the shell 6, and the fixing pin 13 clamps the fixing clamp 11, so that the steel wire rope is locked in the fixing clamp 11.
As shown in fig. 1, the buffer device further comprises a clamping band 14, the clamping band 14 is connected to the shell 6, the clamping band 14 is matched with the buffer component 3 and the stop component 7, the stop component 7 is provided with a clamping step 15 corresponding to the shell 6, and the connecting component 4 is matched with the guide groove.
In actual use, the clamp 14 connects the buffer component 3 with the stop component 7, so that the stability of the buffer component 3 is guaranteed; through set up joint step 15 on detent 7, realize installing detent 7 on shell 6 fast, through setting up guide way and adapting unit 4 looks adaptation, realize adapting unit 4 and be difficult for breaking away from leading wheel 8.
Example 2
As shown in fig. 6, the difference between this embodiment and embodiment 1 is that the buffering component 3 in this embodiment is a spring, and two ends of the spring are respectively and tightly abutted to the damping end 2 and the stopping component 7, so that the spring is easy to deform and is more sensitive to the impact, and meanwhile, the spring can be used repeatedly, thereby saving the cost.
Example 3
The difference between this embodiment and embodiments 1 and 2 is that the cushioning member 3 in this embodiment is made of a rubber tube, two ends of springs at two ends of the rubber tube are tightly pressed between the shock absorbing end 2 and the stopping member 7, and the rubber tube has good wear resistance and elasticity, and at the same time, has strong pulling and squeezing resistance, and is suitable for being used as the cushioning member 3 of the present invention.
The invention has a working process that: when the vehicle collides or brakes suddenly, the safety belt pulls the safety belt lock catch 1, the safety belt lock catch 1 pulls the steel wire rope, the steel wire rope is tensioned, the damping end head 2 connected with the steel wire rope is close to the stop component 7, in the process of closing, the damping port extrudes the metal pipe arranged on the connecting component 4, the metal pipe absorbs the vibration and impact brought by collision to generate deformation, and the impact of the collision on the waist of a user is effectively reduced.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made in the present specification and drawings, which can be directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A seat belt structure having a function of buffering a waist load, which is installed in a seat of a vehicle and is connected to a seat belt buckle to which a seat belt is connected, the seat belt buckle having an upper opening and a lower opening, the seat belt entering through the upper opening into the interior of the seat belt buckle and being connected to the seat belt buckle, the seat belt structure comprising:
a guide assembly;
a shock absorbing end;
a damping member located between the shock absorbing head and the guide assembly;
one end of the connecting component is connected with the damping end, the other end of the connecting component penetrates through the guide assembly and then is connected with the safety belt lock catch, the connecting component enters the safety belt lock catch through the lower opening, and the buffering component is sleeved on the connecting component.
2. The safety belt structure with the function of buffering waist load according to claim 1, characterized in that the shock absorbing end head is provided with a guide bevel angle, the angle between the guide bevel angle and the axis of the shock absorbing end head is 0-80 degrees, and the cross section of the guide bevel angle is a polygon or a circle.
3. The belt structure with a function of absorbing a lumbar load according to claim 1, wherein the guide assembly is used for guiding the moving direction of the connecting member, and comprises:
the shell is provided with a stopping component, the stopping component corresponds to the buffer component, a channel for the connecting component to pass through is arranged on the stopping component, and the shell is fixed on the seat;
the guide wheel is provided with two guide grooves in parallel and is connected to the inside of the shell through a bolt;
the connecting component is fixed inside the fixing clamp, and the fixing clamp is used for limiting the torsion angle of the connecting component.
4. A safety belt structure with function of buffering waist load according to claim 2, characterized in that said buffering component is a metal tube, one end of said metal tube is abutted against said shock absorbing end head, and the other end of said metal tube is connected with said stopping component.
5. A safety belt structure with function of buffering waist load according to claim 2, characterized in that said buffering component is a spring, one end of said spring is against said shock absorbing end head, and the other end is connected with said stopping component.
6. The safety belt structure with the function of buffering waist load according to claim 1, characterized in that the connecting component is a steel wire rope folded in half, wherein the folded end is a first end, the other end is a second end, the safety belt lock catch is provided with a limiting column, the first end is sleeved on the limiting column, and the second end of the connecting component is fixedly connected with the damping end.
7. A safety belt structure with a lumbar load cushioning function as claimed in claim 3, wherein said housing has mounting holes therein, said seat has threaded holes therein corresponding to said bolts, and said bolts pass through said mounting holes and guide wheels into said threaded holes.
8. The belt structure with a function of buffering waist load according to claim 3, further comprising a fixing pin, wherein the outer shell is provided with a through hole, and the fixing pin passes through the through hole to connect the fixing clip to the outer shell.
9. The safety belt structure with the function of buffering waist load according to claim 3, characterized by further comprising a clamping band, wherein the clamping band is connected to the shell, the clamping band is mutually matched with the buffering component and the stopping component, the stopping component is provided with a clamping step corresponding to the shell, and the connecting component is matched with the guide groove.
10. A seatbelt buckle comprising the seatbelt structure having a function of buffering a lumbar load as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997667.3A CN113602230A (en) | 2021-08-27 | 2021-08-27 | Safety belt structure and safety belt lock catch with cushion waist load function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110997667.3A CN113602230A (en) | 2021-08-27 | 2021-08-27 | Safety belt structure and safety belt lock catch with cushion waist load function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113602230A true CN113602230A (en) | 2021-11-05 |
Family
ID=78309585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110997667.3A Pending CN113602230A (en) | 2021-08-27 | 2021-08-27 | Safety belt structure and safety belt lock catch with cushion waist load function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113602230A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214528A (en) * | 2022-07-13 | 2022-10-21 | 宁波均胜汽车安全系统有限公司 | Force limiting buffer mechanism and safety belt lock catch pair assembly |
| WO2024119581A1 (en) * | 2022-12-09 | 2024-06-13 | 上海卜瑞科技有限公司 | Miniature waist-energy absorption device and seat belt buckle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384010A (en) * | 2001-04-29 | 2002-12-11 | 王武生 | Safety belt with energy-absorbing and controlling functions |
| CN1530265A (en) * | 2003-03-14 | 2004-09-22 | 余 涛 | Pretightening and endergonic device of safety belt |
| CN1826249A (en) * | 2003-07-25 | 2006-08-30 | 关键安全体系股份有限公司 | Seat belt pretensioner with energy dissipating wire cable |
| CN201092303Y (en) * | 2007-07-02 | 2008-07-30 | 吕巍 | Pretension apparatus for automobile safety belt |
| DE102009052581A1 (en) * | 2009-11-04 | 2011-05-05 | Keiper Gmbh & Co. Kg | Vehicle seat i.e. motor vehicle front seat, has belt connection device including slide movable relative to guide and locking with belt force affecting belt adapter as latch plate closes slide and guide |
| CN104354668A (en) * | 2014-09-20 | 2015-02-18 | 芜湖金安世腾汽车安全系统有限公司 | Auto safety belt restraint device |
-
2021
- 2021-08-27 CN CN202110997667.3A patent/CN113602230A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384010A (en) * | 2001-04-29 | 2002-12-11 | 王武生 | Safety belt with energy-absorbing and controlling functions |
| CN1530265A (en) * | 2003-03-14 | 2004-09-22 | 余 涛 | Pretightening and endergonic device of safety belt |
| CN1826249A (en) * | 2003-07-25 | 2006-08-30 | 关键安全体系股份有限公司 | Seat belt pretensioner with energy dissipating wire cable |
| CN201092303Y (en) * | 2007-07-02 | 2008-07-30 | 吕巍 | Pretension apparatus for automobile safety belt |
| DE102009052581A1 (en) * | 2009-11-04 | 2011-05-05 | Keiper Gmbh & Co. Kg | Vehicle seat i.e. motor vehicle front seat, has belt connection device including slide movable relative to guide and locking with belt force affecting belt adapter as latch plate closes slide and guide |
| CN104354668A (en) * | 2014-09-20 | 2015-02-18 | 芜湖金安世腾汽车安全系统有限公司 | Auto safety belt restraint device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214528A (en) * | 2022-07-13 | 2022-10-21 | 宁波均胜汽车安全系统有限公司 | Force limiting buffer mechanism and safety belt lock catch pair assembly |
| CN115214528B (en) * | 2022-07-13 | 2024-06-18 | 宁波均胜汽车安全系统有限公司 | Force limiting buffer mechanism and safety belt lock catch sub-assembly |
| WO2024119581A1 (en) * | 2022-12-09 | 2024-06-13 | 上海卜瑞科技有限公司 | Miniature waist-energy absorption device and seat belt buckle |
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Application publication date: 20211105 |
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| RJ01 | Rejection of invention patent application after publication |