CN112440930A - Safety belt lock catch and automobile using same - Google Patents
Safety belt lock catch and automobile using same Download PDFInfo
- Publication number
- CN112440930A CN112440930A CN201910833178.7A CN201910833178A CN112440930A CN 112440930 A CN112440930 A CN 112440930A CN 201910833178 A CN201910833178 A CN 201910833178A CN 112440930 A CN112440930 A CN 112440930A
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- China
- Prior art keywords
- safety belt
- vibration
- signal
- lock catch
- signal processing
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- 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
- B60R22/18—Anchoring devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
-
- 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
- B60R22/18—Anchoring devices
- B60R2022/1806—Anchoring devices for buckles
Abstract
The invention provides a safety belt lock catch and an automobile using the same, wherein the safety belt lock catch comprises a lock catch shell and a vibration module, the vibration module is arranged in the lock catch shell, the vibration module comprises a vibration mechanism and a control unit, and the vibration mechanism is electrically connected with the control unit; the control unit is used for receiving a safety belt unfastening signal and a vehicle signal, and can send out vibration commands of different levels according to the safety belt unfastening signal and the vehicle signal; the vibration mechanism is used for executing the vibration command. The safety belt lock catch provided by the invention can adjust the vibration intensity according to the recognized signal, and provides danger alarms of different levels for passengers.
Description
Technical Field
The invention relates to the technical field of automobile safety, in particular to a safety belt lock catch and an automobile using the same.
Background
In recent years, the possession of private cars of citizens in China is rapidly increased, more and more cars run on roads, and more traffic accidents are caused. Many traffic accidents occur because drivers have poor driving during driving and do not find unsafe factors in time, and if the accidents occur, the electronic sensor can find the unsafe factors and timely and effectively remind the drivers, so that the accidents can be effectively avoided or reduced.
With the development of intelligent driving technology, the automobile safety technology in the intelligent driving environment is necessarily the result of the fusion of the active safety technology and the passive safety technology. The existing motor pre-tightening safety belt and safety belt waist pre-tightening device are the embodiment of the fusion of active and passive safety technologies, and how to exert the functions of passive safety parts to the maximum extent through reasonable design is very important in the development of vehicle safety.
When a running automobile breaks down or unsafe factors occur around the running automobile, the current automobile generally uses a fault lamp to light up and a warning sound to remind a driver to perform proper treatment in time, however, the fault lamp cannot be found out in time by the driver, and the warning sound can be hidden by environmental sound and cannot accurately give out warning reminding.
Disclosure of Invention
The invention aims to solve the technical problem that the prior early warning device cannot effectively send out early warning reminding.
In order to solve the technical problem, the invention discloses a safety belt lock catch which comprises a lock catch shell and a vibration unit, wherein the vibration unit is arranged in the lock catch shell and comprises a vibration mechanism and a control unit, and the vibration mechanism is electrically connected with the control unit;
the control unit is used for receiving a safety belt unfastening signal and a vehicle signal, and can send out vibration commands of different levels according to the safety belt unfastening signal and the vehicle signal;
the vibration mechanism is used for executing the vibration command.
Furthermore, the control unit comprises a safety belt signal processing unit, a vehicle signal processing unit and an adjusting unit, the adjusting unit is respectively electrically connected with the safety belt signal processing unit and the vehicle signal processing unit, and the vibration mechanism is electrically connected with the adjusting unit;
the safety belt signal processing unit can receive a safety belt wearing condition signal and output a safety belt unfastening signal;
the vehicle signal processing unit is electrically connected with the whole vehicle ECU, the whole vehicle ECU can output the vehicle signal, and the vehicle signal processing unit can receive and output the vehicle signal;
the adjustment unit is capable of receiving the seatbelt unfastened signal and the vehicle signal and outputting the vibration command according to the seatbelt unfastened signal and the vehicle signal.
Further, the vibration mechanism comprises a motor and a balancing weight, the balancing weight is connected with the motor in a matching mode, and the vibration command is executed through the matching of the balancing weight and the motor.
Further, the balancing weight comprises a fixed base, and the balancing weight is connected with the motor in a matching mode through the fixed base.
Further, the vibration mechanism comprises a support, one side of the support is fixedly connected with the lock catch shell, and the other side of the support is fixedly connected with the motor.
Further, the support is fixedly connected with the motor in an ultrasonic welding mode, a hot melting mode or a mode of opening the die with the motor shell in an integrated mode.
Further, the safety belt lock catch comprises a locking detection unit, and the locking detection unit is electrically connected with the safety belt signal processing unit.
Further, the vibration mechanism comprises a filter, and the filter is arranged on the circuit board.
Further, the vibration mechanism comprises a filter and a circuit board, the circuit board is fixedly connected with the lock catch shell, and the filter is arranged on the circuit board.
The invention discloses an automobile which comprises a seat sensor and the safety belt lock catch, wherein the seat sensor is electrically connected with the safety belt signal processing unit.
By adopting the technical scheme, the invention has the following beneficial effects:
1) the vibration module of the safety belt lock catch comprises a vibration mechanism and a control unit, wherein the vibration mechanism is electrically connected with the control unit; the vibration mechanism can adjust the vibration intensity according to the recognized vibration command, and provides danger alarms of different levels for passengers.
2) The safety belt lock catch vibration reminding function provided by the invention has the advantages that the arrangement is simpler through the matching effect of the balancing weight and the motor, the influence of the sitting position, the sitting posture and the two-hand placing position of a passenger is avoided, the reminding range is wider, and the safety warning requirement in a future travel mode is met.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a vibration module of a seatbelt buckle according to embodiment 1 of the present invention;
fig. 2 is a functional schematic diagram of a seat belt buckle according to embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a seat belt buckle according to embodiment 1 of the present invention;
the following is a supplementary description of the drawings:
1-a control unit; 2-an electric motor; 3-a balancing weight; 4-a scaffold; 5-a filter.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Example 1:
in order to solve the technical problem that the conventional early warning device cannot effectively send out early warning reminding, the embodiment 1 of the invention discloses a safety belt lock catch which comprises a lock catch shell and a vibration module, wherein the vibration module is arranged in the lock catch shell and comprises a vibration mechanism and a control unit 1, and the vibration mechanism is electrically connected with the control unit 1;
the control unit 1 is used for receiving a safety belt unfastening signal and a vehicle signal, and the control unit 1 can send out vibration commands of different levels according to the safety belt unfastening signal and the vehicle signal;
the vibration mechanism is used for executing the vibration command.
The control unit 1 comprises a safety belt signal processing unit, a vehicle signal processing unit and an adjusting unit, wherein the adjusting unit is respectively electrically connected with the safety belt signal processing unit and the vehicle signal processing unit, and the vibration mechanism is electrically connected with the adjusting unit;
the safety belt signal processing unit can receive a safety belt wearing condition signal and output a safety belt unfastening signal;
the vehicle signal processing unit is electrically connected with the whole vehicle ECU, the whole vehicle ECU can output the vehicle signal, and the vehicle signal processing unit can receive and output the vehicle signal;
the adjustment unit is capable of receiving the seatbelt unfastened signal and the vehicle signal and outputting the vibration command according to the seatbelt unfastened signal and the vehicle signal. The safety belt lock catch realizes adjustment of the lock catch vibration degree by recognizing different input signals, and provides danger alarms of different levels for passengers. The safety belt lock catch is used as an executing mechanism for early warning, and can provide warning functions for early warning reminding, lane deviation, vehicle meeting collision early warning, blind spot monitoring, fatigue reminding and the like of an active safety system.
The vibration mechanism comprises a motor 2 and a balancing weight 3, the balancing weight 3 is connected with the motor 2 in a matching mode, and the vibration command is executed through the matching of the balancing weight 3 and the motor 2. By arranging the small-sized motor 2 and the balancing weight 3 in the safety belt lock, when an electric signal transmitted from the end of the whole vehicle wire harness is received, the lock vibrates up and down along the opening direction of the lock with different frequencies and amplitudes, the waist belt and the shoulder belt of the safety belt are driven to vibrate simultaneously, and a passenger at risk is warned. The essence of vibration generation is that the main inertia axis of the whole body formed by the motor and the balancing weight is not coincident with the rotation axis, so that the balancing weight can generate centrifugal force when rotating, the vibration is generated on the lock catch shell, the size of the centrifugal force can be adjusted by selecting eccentric balancing weights with different weights or adjusting the eccentric distance of the balancing weights with the same mass, and further the vibration intensity is adjusted.
When the weight of the counter weight 3 is constant, the adjustment of the vibration intensity is mainly performed by adjusting the rotation speed of the motor 2.
The balancing weight 3 comprises a fixed base, and the balancing weight 3 is connected with the motor 2 in a matching way through the fixed base. The fixed base of the balancing weight 3 is physically fixed with the key groove on the rotating shaft of the motor 2 through a key;
the vibration mechanism comprises a support 4, one side of the support 4 is fixedly connected with the lock catch shell, and the other side of the support 4 is fixedly connected with the motor 2.
The bracket 4 is fixedly connected with the motor 2 in an ultrasonic welding mode. The bracket 4 is connected with the lock catch shell through a screw;
the safety belt lock catch comprises a locking detection unit, and the locking detection unit is electrically connected with the safety belt signal processing unit.
The vibration mechanism comprises a filter 5 and a circuit board, the circuit board is fixedly connected with the lock catch shell, and the filter 5 is arranged on the circuit board. The circuit board is clamped in a reserved assembly space on the B surface of the lock catch shell and can be connected in clamping/screw connection and other modes.
The control unit is a connector, and the connector is electrically connected with the vibration mechanism.
The invention also discloses an automobile which comprises the seat sensor and the safety belt lock catch, wherein the seat sensor is electrically connected with the safety belt signal processing unit.
Example 2:
in order to solve the technical problem that the conventional early warning device cannot effectively send out early warning reminding, the embodiment 2 of the invention discloses a safety belt lock catch which comprises a lock catch shell and a vibration module, wherein the vibration module is arranged in the lock catch shell and comprises a vibration mechanism and a control unit 1, and the vibration mechanism is electrically connected with the control unit 1;
the control unit 1 is used for receiving a safety belt unfastening signal and a vehicle signal, and the control unit 1 can send out vibration commands of different levels according to the safety belt unfastening signal and the vehicle signal;
the vibration mechanism is used for executing the vibration command.
The control unit 1 comprises a safety belt signal processing unit, a vehicle signal processing unit and an adjusting unit, wherein the adjusting unit is respectively electrically connected with the safety belt signal processing unit and the vehicle signal processing unit, and the vibration mechanism is electrically connected with the adjusting unit;
the safety belt signal processing unit can receive a safety belt wearing condition signal and output a safety belt unfastening signal;
the vehicle signal processing unit is electrically connected with the whole vehicle ECU, the whole vehicle ECU can output the vehicle signal, and the vehicle signal processing unit can receive and output the vehicle signal;
the adjustment unit is capable of receiving the seatbelt unfastened signal and the vehicle signal and outputting the vibration command according to the seatbelt unfastened signal and the vehicle signal. The safety belt lock catch realizes adjustment of the lock catch vibration degree by recognizing different input signals, and provides danger alarms of different levels for passengers. The safety belt lock catch is used as an executing mechanism for early warning, and can provide warning functions for early warning reminding, lane deviation, vehicle meeting collision early warning, blind spot monitoring, fatigue reminding and the like of an active safety system.
The vibration mechanism comprises a motor 2 and a balancing weight 3, the balancing weight 3 is connected with the motor 2 in a matching mode, and the vibration command is executed through the matching of the balancing weight 3 and the motor 2. By arranging the small-sized motor 2 and the balancing weight 3 in the safety belt lock, when an electric signal transmitted from the end of the whole vehicle wire harness is received, the lock vibrates up and down along the opening direction of the lock with different frequencies and amplitudes, the waist belt and the shoulder belt of the safety belt are driven to vibrate simultaneously, and a passenger at risk is warned. The essence of vibration generation is that the main inertia axis of the whole body formed by the motor and the balancing weight is not coincident with the rotation axis, so that the balancing weight can generate centrifugal force when rotating, the vibration is generated on the lock catch shell, the size of the centrifugal force can be adjusted by selecting eccentric balancing weights with different weights or adjusting the eccentric distance of the balancing weights with the same mass, and further the vibration intensity is adjusted.
When the weight of the counter weight 3 is constant, the adjustment of the vibration intensity is mainly performed by adjusting the rotation speed of the motor 2.
The balancing weight 3 comprises a fixed base, and the balancing weight 3 is connected with the motor 2 in a matching way through the fixed base. The fixed base of the balancing weight 3 is physically fixed with the key groove on the rotating shaft of the motor 2 through a key;
the vibration mechanism comprises a support 4, one side of the support 4 is fixedly connected with the lock catch shell, and the other side of the support 4 is fixedly connected with the motor 2.
The bracket 4 is fixedly connected with the motor 2 in a hot melting mode. The bracket 4 is connected with the lock catch shell through a screw;
the safety belt lock catch comprises a locking detection unit, and the locking detection unit is electrically connected with the safety belt signal processing unit.
The vibration mechanism comprises a filter 5 and a circuit board, the circuit board is fixedly connected with the lock catch shell, and the filter 5 is arranged on the circuit board. The circuit board is clamped in a reserved assembly space on the B surface of the lock catch shell and can be connected in clamping/screw connection and other modes.
The control unit is a connector, and the connector is electrically connected with the vibration mechanism.
The invention also discloses an automobile which comprises the seat sensor and the safety belt lock catch, wherein the seat sensor is electrically connected with the safety belt signal processing unit.
Example 3:
in order to solve the technical problem that the conventional early warning device cannot effectively send out early warning reminding, the embodiment 3 of the invention discloses a safety belt lock catch which comprises a lock catch shell and a vibration module, wherein the vibration module is arranged in the lock catch shell and comprises a vibration mechanism and a control unit 1, and the vibration mechanism is electrically connected with the control unit 1;
the control unit 1 is used for receiving a safety belt unfastening signal and a vehicle signal, and the control unit 1 can send out vibration commands of different levels according to the safety belt unfastening signal and the vehicle signal;
the vibration mechanism is used for executing the vibration command.
The control unit 1 comprises a safety belt signal processing unit, a vehicle signal processing unit and an adjusting unit, wherein the adjusting unit is respectively electrically connected with the safety belt signal processing unit and the vehicle signal processing unit, and the vibration mechanism is electrically connected with the adjusting unit;
the safety belt signal processing unit can receive a safety belt wearing condition signal and output a safety belt unfastening signal;
the vehicle signal processing unit is electrically connected with the whole vehicle ECU, the whole vehicle ECU can output the vehicle signal, and the vehicle signal processing unit can receive and output the vehicle signal;
the adjustment unit is capable of receiving the seatbelt unfastened signal and the vehicle signal and outputting the vibration command according to the seatbelt unfastened signal and the vehicle signal. The safety belt lock catch realizes adjustment of the lock catch vibration degree by recognizing different input signals, and provides danger alarms of different levels for passengers. The safety belt lock catch is used as an executing mechanism for early warning, and can provide warning functions for early warning reminding, lane deviation, vehicle meeting collision early warning, blind spot monitoring, fatigue reminding and the like of an active safety system.
The vibration mechanism comprises a motor 2 and a balancing weight 3, the balancing weight 3 is connected with the motor 2 in a matching mode, and the vibration command is executed through the matching of the balancing weight 3 and the motor 2. By arranging the small-sized motor 2 and the balancing weight 3 in the safety belt lock, when an electric signal transmitted from the end of the whole vehicle wire harness is received, the lock vibrates up and down along the opening direction of the lock with different frequencies and amplitudes, the waist belt and the shoulder belt of the safety belt are driven to vibrate simultaneously, and a passenger at risk is warned. The essence of vibration generation is that the main inertia axis of the whole body formed by the motor and the balancing weight is not coincident with the rotation axis, so that the balancing weight can generate centrifugal force when rotating, the vibration is generated on the lock catch shell, the size of the centrifugal force can be adjusted by selecting eccentric balancing weights with different weights or adjusting the eccentric distance of the balancing weights with the same mass, and further the vibration intensity is adjusted.
When the weight of the counter weight 3 is constant, the adjustment of the vibration intensity is mainly performed by adjusting the rotation speed of the motor 2.
The balancing weight 3 comprises a fixed base, and the balancing weight 3 is connected with the motor 2 in a matching way through the fixed base. The fixed base of the balancing weight 3 is physically fixed with the key groove on the rotating shaft of the motor 2 through a key;
the vibration mechanism comprises a support 4, one side of the support 4 is fixedly connected with the lock catch shell, and the other side of the support 4 is fixedly connected with the motor 2.
The support 4 is fixedly connected with the motor 2 in a self-opening mode through being integrated with the shell of the motor 2. The bracket 4 is connected with the lock catch shell through a screw;
the safety belt lock catch comprises a locking detection unit, and the locking detection unit is electrically connected with the safety belt signal processing unit.
The vibration mechanism comprises a filter 5 and a circuit board, the circuit board is fixedly connected with the lock catch shell, and the filter 5 is arranged on the circuit board. The circuit board is clamped in a reserved assembly space on the B surface of the lock catch shell and can be connected in clamping/screw connection and other modes.
The control unit is a connector, and the connector is electrically connected with the vibration mechanism.
The invention also discloses an automobile which comprises the seat sensor and the safety belt lock catch, wherein the seat sensor is electrically connected with the safety belt signal processing unit.
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 (10)
1. A safety belt lock catch is characterized in that: the vibration mechanism comprises a lock catch shell and a vibration module, wherein the vibration module is arranged in the lock catch shell and comprises a vibration mechanism and a control unit (1), and the vibration mechanism is electrically connected with the control unit (1);
the control unit (1) is used for receiving a safety belt unfastening signal and a vehicle signal, and the control unit (1) can send out vibration commands of different levels according to the safety belt unfastening signal and the vehicle signal;
the vibration mechanism is used for executing the vibration command.
2. The seatbelt buckle as claimed in claim 1, wherein: the control unit (1) comprises a safety belt signal processing unit, a vehicle signal processing unit and an adjusting unit, wherein the adjusting unit is respectively electrically connected with the safety belt signal processing unit and the vehicle signal processing unit, and the vibration mechanism is electrically connected with the adjusting unit;
the safety belt signal processing unit can receive a safety belt wearing condition signal and output a safety belt unfastening signal;
the vehicle signal processing unit is electrically connected with the whole vehicle ECU, the whole vehicle ECU can output the vehicle signal, and the vehicle signal processing unit can receive and output the vehicle signal;
the adjustment unit is capable of receiving the seatbelt unfastened signal and the vehicle signal and outputting the vibration command according to the seatbelt unfastened signal and the vehicle signal.
3. The seatbelt buckle as claimed in claim 1, wherein: the vibration mechanism comprises a motor (2) and a balancing weight (3), the balancing weight (3) is connected with the motor (2) in a matched mode, and the vibration command is executed through the matching weight (3) and the motor (2) in a matched mode.
4. The seatbelt buckle as claimed in claim 3, wherein: the balancing weight (3) comprises a fixed base, and the balancing weight (3) is connected with the motor (2) in a matching mode through the fixed base.
5. The seatbelt buckle as claimed in claim 4, wherein: the vibration mechanism comprises a support (4), one side of the support (4) is fixedly connected with the lock catch shell, and the other side of the support (4) is fixedly connected with the motor (2).
6. The seatbelt buckle as claimed in claim 5, wherein: the support (4) is fixedly connected with the motor (2) in an ultrasonic welding mode, a hot melting mode or a mode of opening a die from the shell of the motor (2) in an integrated mode.
7. The seatbelt buckle as claimed in claim 2, wherein: the safety belt signal processing device comprises a locking detection unit, wherein the locking detection unit is electrically connected with the safety belt signal processing unit.
8. The seatbelt buckle as claimed in claim 6, wherein: the vibration mechanism comprises a filter (5) and a circuit board, the circuit board is fixedly connected with the lock catch shell, and the filter (5) is arranged on the circuit board.
9. The seatbelt buckle as claimed in claim 1, wherein: the control unit is a connector, and the connector is electrically connected with the vibration mechanism.
10. An automobile, characterized in that: comprising a seat sensor and the belt buckle of any of claims 1-9, the seat sensor being electrically connected to the belt signal processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833178.7A CN112440930A (en) | 2019-09-04 | 2019-09-04 | Safety belt lock catch and automobile using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910833178.7A CN112440930A (en) | 2019-09-04 | 2019-09-04 | Safety belt lock catch and automobile using same |
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| Publication Number | Publication Date |
|---|---|
| CN112440930A true CN112440930A (en) | 2021-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910833178.7A Pending CN112440930A (en) | 2019-09-04 | 2019-09-04 | Safety belt lock catch and automobile using same |
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| Country | Link |
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| CN (1) | CN112440930A (en) |
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| CN110126697A (en) * | 2019-05-31 | 2019-08-16 | 中国汽车工程研究院股份有限公司 | A kind of seat alarm set for intelligent vehicle |
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| DE102006048674A1 (en) * | 2006-10-14 | 2008-05-29 | Autoliv Development Ab | Self-locking seat belt retractor, has safety catch supported with recess on bearing stud, where stud has outer end that is deformed by catch such that catch is rotatable on stud and is simultaneously locked against axial displacement |
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